]>
Commit | Line | Data |
---|---|---|
5990da81 YP |
1 | '\" t |
2 | .\" | |
3 | .\" CDDL HEADER START | |
4 | .\" | |
5 | .\" The contents of this file are subject to the terms of the | |
6 | .\" Common Development and Distribution License (the "License"). | |
7 | .\" You may not use this file except in compliance with the License. | |
8 | .\" | |
9 | .\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | |
10 | .\" or http://www.opensolaris.org/os/licensing. | |
11 | .\" See the License for the specific language governing permissions | |
12 | .\" and limitations under the License. | |
13 | .\" | |
14 | .\" When distributing Covered Code, include this CDDL HEADER in each | |
15 | .\" file and include the License file at usr/src/OPENSOLARIS.LICENSE. | |
16 | .\" If applicable, add the following below this CDDL HEADER, with the | |
17 | .\" fields enclosed by brackets "[]" replaced with your own identifying | |
18 | .\" information: Portions Copyright [yyyy] [name of copyright owner] | |
19 | .\" | |
20 | .\" CDDL HEADER END | |
21 | .\" | |
22 | .\" | |
058ac9ba | 23 | .\" Copyright (c) 2009 Sun Microsystems, Inc. All Rights Reserved. |
5990da81 | 24 | .\" Copyright 2011 Joshua M. Clulow <josh@sysmgr.org> |
fdbaf44f | 25 | .\" Copyright (c) 2011, 2016 by Delphix. All rights reserved. |
788eb90c | 26 | .\" Copyright (c) 2014, Joyent, Inc. All rights reserved. |
5990da81 | 27 | .\" Copyright 2012 Nexenta Systems, Inc. All Rights Reserved. |
9759c60f | 28 | .\" Copyright (c) 2013 by Saso Kiselkov. All rights reserved. |
76281da4 | 29 | .\" Copyright 2016 Richard Laager. All rights reserved. |
5990da81 | 30 | .\" |
76281da4 | 31 | .TH zfs 8 "May 11, 2016" "ZFS pool 28, filesystem 5" "System Administration Commands" |
058ac9ba BB |
32 | .SH NAME |
33 | zfs \- configures ZFS file systems | |
34 | .SH SYNOPSIS | |
35 | .LP | |
36 | .nf | |
37 | \fBzfs\fR [\fB-?\fR] | |
38 | .fi | |
39 | ||
40 | .LP | |
41 | .nf | |
42 | \fBzfs\fR \fBcreate\fR [\fB-p\fR] [\fB-o\fR \fIproperty\fR=\fIvalue\fR] ... \fIfilesystem\fR | |
43 | .fi | |
44 | ||
45 | .LP | |
46 | .nf | |
47 | \fBzfs\fR \fBcreate\fR [\fB-ps\fR] [\fB-b\fR \fIblocksize\fR] [\fB-o\fR \fIproperty\fR=\fIvalue\fR] ... \fB-V\fR \fIsize\fR \fIvolume\fR | |
48 | .fi | |
49 | ||
50 | .LP | |
51 | .nf | |
330d06f9 | 52 | \fBzfs\fR \fBdestroy\fR [\fB-fnpRrv\fR] \fIfilesystem\fR|\fIvolume\fR |
058ac9ba BB |
53 | .fi |
54 | ||
55 | .LP | |
56 | .nf | |
330d06f9 | 57 | \fBzfs\fR \fBdestroy\fR [\fB-dnpRrv\fR] \fIfilesystem\fR|\fIvolume\fR@\fIsnap\fR[%\fIsnap\fR][,...] |
058ac9ba BB |
58 | .fi |
59 | ||
da536844 MA |
60 | .LP |
61 | .nf | |
62 | \fBzfs\fR \fBdestroy\fR \fIfilesystem\fR|\fIvolume\fR#\fIbookmark\fR | |
63 | .fi | |
64 | ||
058ac9ba BB |
65 | .LP |
66 | .nf | |
6b4e21c6 | 67 | \fBzfs\fR \fBsnapshot | snap\fR [\fB-r\fR] [\fB-o\fR \fIproperty\fR=\fIvalue\fR] ... |
6f1ffb06 | 68 | \fIfilesystem@snapname\fR|\fIvolume@snapname\fR ... |
058ac9ba BB |
69 | .fi |
70 | ||
71 | .LP | |
72 | .nf | |
73 | \fBzfs\fR \fBrollback\fR [\fB-rRf\fR] \fIsnapshot\fR | |
74 | .fi | |
75 | ||
76 | .LP | |
77 | .nf | |
78 | \fBzfs\fR \fBclone\fR [\fB-p\fR] [\fB-o\fR \fIproperty\fR=\fIvalue\fR] ... \fIsnapshot\fR \fIfilesystem\fR|\fIvolume\fR | |
79 | .fi | |
80 | ||
81 | .LP | |
82 | .nf | |
83 | \fBzfs\fR \fBpromote\fR \fIclone-filesystem\fR | |
84 | .fi | |
85 | ||
86 | .LP | |
87 | .nf | |
db49968e | 88 | \fBzfs\fR \fBrename\fR [\fB-f\fR] \fIfilesystem\fR|\fIvolume\fR|\fIsnapshot\fR |
058ac9ba BB |
89 | \fIfilesystem\fR|\fIvolume\fR|\fIsnapshot\fR |
90 | .fi | |
91 | ||
92 | .LP | |
93 | .nf | |
db49968e | 94 | \fBzfs\fR \fBrename\fR [\fB-fp\fR] \fIfilesystem\fR|\fIvolume\fR \fIfilesystem\fR|\fIvolume\fR |
058ac9ba BB |
95 | .fi |
96 | ||
97 | .LP | |
98 | .nf | |
99 | \fBzfs\fR \fBrename\fR \fB-r\fR \fIsnapshot\fR \fIsnapshot\fR | |
100 | .fi | |
101 | ||
102 | .LP | |
103 | .nf | |
54d5378f | 104 | \fBzfs\fR \fBlist\fR [\fB-r\fR|\fB-d\fR \fIdepth\fR][\fB-Hp\fR][\fB-o\fR \fIproperty\fR[,\fIproperty\fR]...] [\fB-t\fR \fItype\fR[,\fItype\fR]..] |
76281da4 | 105 | [\fB-s\fR \fIproperty\fR] ... [\fB-S\fR \fIproperty\fR] ... [\fIfilesystem\fR|\fIvolume\fR|\fIsnapshot\fR|\fImountpoint\fR] ... |
058ac9ba BB |
106 | .fi |
107 | ||
108 | .LP | |
109 | .nf | |
53ed2db2 | 110 | \fBzfs\fR \fBset\fR \fIproperty\fR=\fIvalue\fR... \fIfilesystem\fR|\fIvolume\fR|\fIsnapshot\fR... |
058ac9ba BB |
111 | .fi |
112 | ||
113 | .LP | |
114 | .nf | |
6b4e21c6 | 115 | \fBzfs\fR \fBget\fR [\fB-r\fR|\fB-d\fR \fIdepth\fR][\fB-Hp\fR][\fB-o\fR \fIfield\fR[,...]] [\fB-t\fR \fItype\fR[,...]] |
76281da4 | 116 | [\fB-s\fR \fIsource\fR[,...]] "\fIall\fR" | \fIproperty\fR[,...] \fIfilesystem\fR|\fIvolume\fR|\fIsnapshot\fR|\fImountpoint\fR ... |
058ac9ba BB |
117 | .fi |
118 | ||
119 | .LP | |
120 | .nf | |
0bf8501a | 121 | \fBzfs\fR \fBinherit\fR [\fB-rS\fR] \fIproperty\fR \fIfilesystem\fR|\fIvolume|snapshot\fR ... |
058ac9ba BB |
122 | .fi |
123 | ||
124 | .LP | |
125 | .nf | |
126 | \fBzfs\fR \fBupgrade\fR [\fB-v\fR] | |
127 | .fi | |
128 | ||
129 | .LP | |
130 | .nf | |
131 | \fBzfs\fR \fBupgrade\fR [\fB-r\fR] [\fB-V\fR \fIversion\fR] \fB-a\fR | \fIfilesystem\fR | |
132 | .fi | |
133 | ||
134 | .LP | |
135 | .nf | |
5990da81 YP |
136 | \fBzfs\fR \fBuserspace\fR [\fB-Hinp\fR] [\fB-o\fR \fIfield\fR[,...]] [\fB-s\fR \fIfield\fR] ... |
137 | [\fB-S\fR \fIfield\fR] ... [\fB-t\fR \fItype\fR[,...]] \fIfilesystem\fR|\fIsnapshot\fR | |
058ac9ba BB |
138 | .fi |
139 | ||
140 | .LP | |
141 | .nf | |
5990da81 YP |
142 | \fBzfs\fR \fBgroupspace\fR [\fB-Hinp\fR] [\fB-o\fR \fIfield\fR[,...]] [\fB-s\fR \fIfield\fR] ... |
143 | [\fB-S\fR \fIfield\fR] ... [\fB-t\fR \fItype\fR[,...]] \fIfilesystem\fR|\fIsnapshot\fR | |
058ac9ba BB |
144 | .fi |
145 | ||
146 | .LP | |
147 | .nf | |
6b4e21c6 | 148 | \fBzfs\fR \fBmount\fR |
058ac9ba BB |
149 | .fi |
150 | ||
151 | .LP | |
152 | .nf | |
153 | \fBzfs\fR \fBmount\fR [\fB-vO\fR] [\fB-o \fIoptions\fR\fR] \fB-a\fR | \fIfilesystem\fR | |
154 | .fi | |
155 | ||
156 | .LP | |
157 | .nf | |
10b75496 | 158 | \fBzfs\fR \fBunmount | umount\fR [\fB-f\fR] \fB-a\fR | \fIfilesystem\fR|\fImountpoint\fR |
058ac9ba BB |
159 | .fi |
160 | ||
161 | .LP | |
162 | .nf | |
2f71caf2 | 163 | \fBzfs\fR \fBshare\fR [\fBnfs\fR|\fBsmb\fR] \fB-a\fR | \fIfilesystem\fR |
058ac9ba BB |
164 | .fi |
165 | ||
166 | .LP | |
167 | .nf | |
2f71caf2 | 168 | \fBzfs\fR \fBunshare\fR [\fBnfs\fR|\fBsmb\fR] \fB-a\fR | \fIfilesystem\fR|\fImountpoint\fR |
058ac9ba BB |
169 | .fi |
170 | ||
da536844 MA |
171 | .LP |
172 | .nf | |
173 | \fBzfs\fR \fBbookmark\fR \fIsnapshot\fR \fIbookmark\fR | |
174 | .fi | |
175 | ||
058ac9ba BB |
176 | .LP |
177 | .nf | |
2aa34383 | 178 | \fBzfs\fR \fBsend\fR [\fB-DnPpRveLc\fR] [\fB-\fR[\fBiI\fR] \fIsnapshot\fR] \fIsnapshot\fR |
058ac9ba BB |
179 | .fi |
180 | ||
da536844 MA |
181 | .LP |
182 | .nf | |
47dfff3b | 183 | \fBzfs\fR \fBsend\fR [\fB-Le\fR] [\fB-i \fIsnapshot\fR|\fIbookmark\fR]\fR \fIfilesystem\fR|\fIvolume\fR|\fIsnapshot\fR |
da536844 MA |
184 | .fi |
185 | ||
058ac9ba BB |
186 | .LP |
187 | .nf | |
47dfff3b | 188 | \fBzfs\fR \fBsend\fR [\fB-Penv\fR] \fB-t\fR \fIreceive_resume_token\fR |
058ac9ba BB |
189 | .fi |
190 | ||
191 | .LP | |
192 | .nf | |
47dfff3b MA |
193 | \fBzfs\fR \fBreceive\fR [\fB-Fnsuv\fR] [\fB-o origin\fR=\fIsnapshot\fR] \fIfilesystem\fR|\fIvolume\fR|\fIsnapshot\fR |
194 | .fi | |
195 | ||
196 | .LP | |
197 | .nf | |
198 | \fBzfs\fR \fBreceive\fR [\fB-Fnsuv\fR] [\fB-d\fR|\fB-e\fR] [\fB-o origin\fR=\fIsnapshot\fR] \fIfilesystem\fR | |
199 | .fi | |
200 | ||
201 | .LP | |
202 | .nf | |
203 | \fBzfs\fR \fBreceive\fR \fB-A\fR \fIfilesystem\fR|\fIvolume\fR | |
058ac9ba BB |
204 | .fi |
205 | ||
206 | .LP | |
207 | .nf | |
208 | \fBzfs\fR \fBallow\fR \fIfilesystem\fR|\fIvolume\fR | |
209 | .fi | |
210 | ||
211 | .LP | |
212 | .nf | |
6b4e21c6 | 213 | \fBzfs\fR \fBallow\fR [\fB-ldug\fR] "\fIeveryone\fR"|\fIuser\fR|\fIgroup\fR[,...] \fIperm\fR|\fI@setname\fR[,...] |
058ac9ba BB |
214 | \fIfilesystem\fR|\fIvolume\fR |
215 | .fi | |
216 | ||
217 | .LP | |
218 | .nf | |
219 | \fBzfs\fR \fBallow\fR [\fB-ld\fR] \fB-e\fR \fIperm\fR|@\fIsetname\fR[,...] \fIfilesystem\fR|\fIvolume\fR | |
220 | .fi | |
221 | ||
222 | .LP | |
223 | .nf | |
224 | \fBzfs\fR \fBallow\fR \fB-c\fR \fIperm\fR|@\fIsetname\fR[,...] \fIfilesystem\fR|\fIvolume\fR | |
225 | .fi | |
226 | ||
227 | .LP | |
228 | .nf | |
229 | \fBzfs\fR \fBallow\fR \fB-s\fR @\fIsetname\fR \fIperm\fR|@\fIsetname\fR[,...] \fIfilesystem\fR|\fIvolume\fR | |
230 | .fi | |
231 | ||
232 | .LP | |
233 | .nf | |
6b4e21c6 | 234 | \fBzfs\fR \fBunallow\fR [\fB-rldug\fR] "\fIeveryone\fR"|\fIuser\fR|\fIgroup\fR[,...] [\fIperm\fR|@\fIsetname\fR[,... ]] |
058ac9ba BB |
235 | \fIfilesystem\fR|\fIvolume\fR |
236 | .fi | |
237 | ||
238 | .LP | |
239 | .nf | |
240 | \fBzfs\fR \fBunallow\fR [\fB-rld\fR] \fB-e\fR [\fIperm\fR|@\fIsetname\fR[,... ]] \fIfilesystem\fR|\fIvolume\fR | |
241 | .fi | |
242 | ||
243 | .LP | |
244 | .nf | |
245 | \fBzfs\fR \fBunallow\fR [\fB-r\fR] \fB-c\fR [\fIperm\fR|@\fIsetname\fR[ ... ]] \fIfilesystem\fR|\fIvolume\fR | |
246 | .fi | |
247 | ||
248 | .LP | |
249 | .nf | |
250 | \fBzfs\fR \fBunallow\fR [\fB-r\fR] \fB-s\fR @\fIsetname\fR [\fIperm\fR|@\fIsetname\fR[,... ]] \fIfilesystem\fR|\fIvolume\fR | |
251 | .fi | |
252 | ||
253 | .LP | |
254 | .nf | |
255 | \fBzfs\fR \fBhold\fR [\fB-r\fR] \fItag\fR \fIsnapshot\fR... | |
256 | .fi | |
257 | ||
258 | .LP | |
259 | .nf | |
260 | \fBzfs\fR \fBholds\fR [\fB-r\fR] \fIsnapshot\fR... | |
261 | .fi | |
262 | ||
263 | .LP | |
264 | .nf | |
265 | \fBzfs\fR \fBrelease\fR [\fB-r\fR] \fItag\fR \fIsnapshot\fR... | |
266 | .fi | |
267 | ||
0677cb6f RL |
268 | .LP |
269 | .nf | |
270 | \fBzfs\fR \fBdiff\fR [\fB-FHt\fR] \fIsnapshot\fR \fIsnapshot|filesystem\fR | |
271 | ||
058ac9ba | 272 | .SH DESCRIPTION |
058ac9ba | 273 | .LP |
2d1b7b0b | 274 | The \fBzfs\fR command configures \fBZFS\fR datasets within a \fBZFS\fR storage pool, as described in \fBzpool\fR(8). A dataset is identified by a unique path within the \fBZFS\fR namespace. For example: |
058ac9ba BB |
275 | .sp |
276 | .in +2 | |
277 | .nf | |
278 | pool/{filesystem,volume,snapshot} | |
279 | .fi | |
280 | .in -2 | |
281 | .sp | |
282 | ||
283 | .sp | |
284 | .LP | |
285 | where the maximum length of a dataset name is \fBMAXNAMELEN\fR (256 bytes). | |
286 | .sp | |
287 | .LP | |
288 | A dataset can be one of the following: | |
289 | .sp | |
290 | .ne 2 | |
058ac9ba | 291 | .na |
9bb3e153 | 292 | \fB\fIfilesystem\fR\fR |
058ac9ba BB |
293 | .ad |
294 | .sp .6 | |
295 | .RS 4n | |
296 | A \fBZFS\fR dataset of type \fBfilesystem\fR can be mounted within the standard system namespace and behaves like other file systems. While \fBZFS\fR file systems are designed to be \fBPOSIX\fR compliant, known issues exist that prevent compliance in some cases. Applications that depend on standards conformance might fail due to nonstandard behavior when checking file system free space. | |
297 | .RE | |
298 | ||
299 | .sp | |
300 | .ne 2 | |
058ac9ba BB |
301 | .na |
302 | \fB\fIvolume\fR\fR | |
303 | .ad | |
304 | .sp .6 | |
305 | .RS 4n | |
306 | A logical volume exported as a raw or block device. This type of dataset should only be used under special circumstances. File systems are typically used in most environments. | |
307 | .RE | |
308 | ||
309 | .sp | |
310 | .ne 2 | |
058ac9ba BB |
311 | .na |
312 | \fB\fIsnapshot\fR\fR | |
313 | .ad | |
314 | .sp .6 | |
315 | .RS 4n | |
316 | A read-only version of a file system or volume at a given point in time. It is specified as \fIfilesystem@name\fR or \fIvolume@name\fR. | |
317 | .RE | |
318 | ||
b467db45 TF |
319 | .sp |
320 | .ne 2 | |
b467db45 TF |
321 | .na |
322 | \fB\fIbookmark\fR\fR | |
323 | .ad | |
324 | .sp .6 | |
325 | .RS 4n | |
326 | Much like a \fIsnapshot\fR, but without the hold on on-disk data. It can be used as the source of a send (but not for a receive). | |
327 | It is specified as \fIfilesystem#name\fR or \fIvolume#name\fR. | |
328 | .RE | |
329 | ||
058ac9ba | 330 | .SS "ZFS File System Hierarchy" |
058ac9ba BB |
331 | .LP |
332 | A \fBZFS\fR storage pool is a logical collection of devices that provide space for datasets. A storage pool is also the root of the \fBZFS\fR file system hierarchy. | |
333 | .sp | |
334 | .LP | |
2d1b7b0b | 335 | The root of the pool can be accessed as a file system, such as mounting and unmounting, taking snapshots, and setting properties. The physical storage characteristics, however, are managed by the \fBzpool\fR(8) command. |
058ac9ba BB |
336 | .sp |
337 | .LP | |
2d1b7b0b | 338 | See \fBzpool\fR(8) for more information on creating and administering pools. |
058ac9ba | 339 | .SS "Snapshots" |
058ac9ba BB |
340 | .LP |
341 | A snapshot is a read-only copy of a file system or volume. Snapshots can be created extremely quickly, and initially consume no additional space within the pool. As data within the active dataset changes, the snapshot consumes more data than would otherwise be shared with the active dataset. | |
342 | .sp | |
343 | .LP | |
d17eab9c | 344 | Snapshots can have arbitrary names. Snapshots of volumes can be cloned or rolled back. Visibility is determined by the \fBsnapdev\fR property of the parent volume. |
058ac9ba BB |
345 | .sp |
346 | .LP | |
347 | File system snapshots can be accessed under the \fB\&.zfs/snapshot\fR directory in the root of the file system. Snapshots are automatically mounted on demand and may be unmounted at regular intervals. The visibility of the \fB\&.zfs\fR directory can be controlled by the \fBsnapdir\fR property. | |
b467db45 TF |
348 | .SS "Bookmarks" |
349 | .LP | |
350 | A bookmark is like a snapshot, a read-only copy of a file system or volume. Bookmarks can be created extremely quickly, compared to snapshots, and they consume no additional space within the pool. Bookmarks can also have arbitrary names, much like snapshots. | |
351 | .sp | |
352 | .LP | |
353 | Unlike snapshots, bookmarks can not be accessed through the filesystem in any way. From a storage standpoint a bookmark just provides a way to reference when a snapshot was created as a distinct object. Bookmarks are initially tied to a snapshot, not the filesystem/volume, and they will survive if the snapshot itself is destroyed. Since they are very light weight there's little incentive to destroy them. | |
058ac9ba | 354 | .SS "Clones" |
058ac9ba BB |
355 | .LP |
356 | A clone is a writable volume or file system whose initial contents are the same as another dataset. As with snapshots, creating a clone is nearly instantaneous, and initially consumes no additional space. | |
357 | .sp | |
358 | .LP | |
359 | Clones can only be created from a snapshot. When a snapshot is cloned, it creates an implicit dependency between the parent and child. Even though the clone is created somewhere else in the dataset hierarchy, the original snapshot cannot be destroyed as long as a clone exists. The \fBorigin\fR property exposes this dependency, and the \fBdestroy\fR command lists any such dependencies, if they exist. | |
360 | .sp | |
361 | .LP | |
362 | The clone parent-child dependency relationship can be reversed by using the \fBpromote\fR subcommand. This causes the "origin" file system to become a clone of the specified file system, which makes it possible to destroy the file system that the clone was created from. | |
363 | .SS "Mount Points" | |
058ac9ba | 364 | .LP |
9a616b5d | 365 | Creating a \fBZFS\fR file system is a simple operation, so the number of file systems per system is likely to be numerous. To cope with this, \fBZFS\fR automatically manages mounting and unmounting file systems without the need to edit the \fB/etc/fstab\fR file. All automatically managed file systems are mounted by \fBZFS\fR at boot time. |
058ac9ba BB |
366 | .sp |
367 | .LP | |
368 | By default, file systems are mounted under \fB/\fIpath\fR\fR, where \fIpath\fR is the name of the file system in the \fBZFS\fR namespace. Directories are created and destroyed as needed. | |
369 | .sp | |
370 | .LP | |
9a616b5d | 371 | A file system can also have a mount point set in the \fBmountpoint\fR property. This directory is created as needed, and \fBZFS\fR automatically mounts the file system when the \fBzfs mount -a\fR command is invoked (without editing \fB/etc/fstab\fR). The \fBmountpoint\fR property can be inherited, so if \fBpool/home\fR has a mount point of \fB/export/stuff\fR, then \fBpool/home/user\fR automatically inherits a mount point of \fB/export/stuff/user\fR. |
058ac9ba BB |
372 | .sp |
373 | .LP | |
374 | A file system \fBmountpoint\fR property of \fBnone\fR prevents the file system from being mounted. | |
375 | .sp | |
376 | .LP | |
9a616b5d | 377 | If needed, \fBZFS\fR file systems can also be managed with traditional tools (\fBmount\fR, \fBumount\fR, \fB/etc/fstab\fR). If a file system's mount point is set to \fBlegacy\fR, \fBZFS\fR makes no attempt to manage the file system, and the administrator is responsible for mounting and unmounting the file system. |
c8f25918 | 378 | .SS "Deduplication" |
c8f25918 KA |
379 | .LP |
380 | Deduplication is the process for removing redundant data at the block-level, reducing the total amount of data stored. If a file system has the \fBdedup\fR property enabled, duplicate data blocks are removed synchronously. The result is that only unique data is stored and common components are shared among files. | |
971808ec TF |
381 | .sp |
382 | \fBWARNING: DO NOT ENABLE DEDUPLICATION UNLESS YOU NEED IT AND KNOW EXACTLY WHAT YOU ARE DOING!\fR | |
383 | .sp | |
7e0754c6 | 384 | Deduplicating data is a very resource-intensive operation. It is generally recommended that you have \fIat least\fR 1.25 GiB of RAM per 1 TiB of storage when you enable deduplication. But calculating the exact requirements is a somewhat complicated affair. |
971808ec TF |
385 | .sp |
386 | Enabling deduplication on an improperly-designed system will result in extreme performance issues (extremely slow filesystem and snapshot deletions etc.) and can potentially lead to data loss (i.e. unimportable pool due to memory exhaustion) if your system is not built for this purpose. Deduplication affects the processing power (CPU), disks (and the controller) as well as primary (real) memory. | |
387 | .sp | |
388 | Before creating a pool with deduplication enabled, ensure that you have planned your hardware requirements appropriately and implemented appropriate recovery practices, such as regular backups. | |
389 | .sp | |
390 | Unless necessary, deduplication should NOT be enabled on a system. Instead, consider using \fIcompression=lz4\fR, as a less resource-intensive alternative. | |
879dbef0 RL |
391 | .SS "Properties" |
392 | .sp | |
058ac9ba | 393 | .LP |
879dbef0 | 394 | Properties are divided into two types: native properties and user-defined (or "user") properties. Native properties either export internal statistics or control \fBZFS\fR behavior. User properties have no effect on \fBZFS\fR behavior, but you can use them to annotate datasets and snapshots in a way that is meaningful in your environment. |
058ac9ba BB |
395 | .sp |
396 | .LP | |
879dbef0 RL |
397 | Properties are generally inherited from the parent unless overridden by the child. See the documentation below for exceptions. |
398 | .sp | |
399 | .LP | |
400 | .SS "Native Properties" | |
401 | Native properties apply to all dataset types unless otherwise noted. However, native properties cannot be edited on snapshots. | |
058ac9ba BB |
402 | .sp |
403 | .LP | |
879dbef0 | 404 | The values of numeric native properties can be specified using human-readable abbreviations (\fBK\fR, \fBM\fR, \fBG\fR, \fBT\fR, \fBP\fR, \fBE\fR, and \fBZ\fR). These abbreviations can optionally use the IEC binary prefixes (e.g. GiB) or SI decimal prefixes (e.g. GB), though the SI prefixes are treated as binary prefixes. Abbreviations are case-insensitive. The following are all valid (and equal) specifications: |
058ac9ba BB |
405 | .sp |
406 | .in +2 | |
407 | .nf | |
7e0754c6 | 408 | 1536M, 1.5g, 1.50GB, 1.5GiB |
058ac9ba BB |
409 | .fi |
410 | .in -2 | |
411 | .sp | |
412 | ||
413 | .sp | |
414 | .LP | |
879dbef0 | 415 | The values of non-numeric native properties are case-sensitive and must be lowercase, except for \fBmountpoint\fR, \fBsharenfs\fR, and \fBsharesmb\fR. |
058ac9ba BB |
416 | .sp |
417 | .LP | |
879dbef0 | 418 | The following native properties consist of read-only statistics about the dataset. These properties can be neither set, nor inherited. |
058ac9ba BB |
419 | .sp |
420 | .ne 2 | |
058ac9ba BB |
421 | .na |
422 | \fB\fBavailable\fR\fR | |
423 | .ad | |
424 | .sp .6 | |
425 | .RS 4n | |
426 | The amount of space available to the dataset and all its children, assuming that there is no other activity in the pool. Because space is shared within a pool, availability can be limited by any number of factors, including physical pool size, quotas, reservations, or other datasets within the pool. | |
427 | .sp | |
428 | This property can also be referred to by its shortened column name, \fBavail\fR. | |
429 | .RE | |
430 | ||
431 | .sp | |
432 | .ne 2 | |
058ac9ba BB |
433 | .na |
434 | \fB\fBcompressratio\fR\fR | |
435 | .ad | |
436 | .sp .6 | |
437 | .RS 4n | |
8fd888ba | 438 | For non-snapshots, the compression ratio achieved for the \fBused\fR space of this dataset, expressed as a multiplier. The \fBused\fR property includes descendant datasets, and, for clones, does not include the space shared with the origin snapshot. For snapshots, the \fBcompressratio\fR is the same as the \fBrefcompressratio\fR property. The \fBcompression\fR property controls whether compression is enabled on a dataset. |
058ac9ba BB |
439 | .RE |
440 | ||
441 | .sp | |
442 | .ne 2 | |
058ac9ba BB |
443 | .na |
444 | \fB\fBcreation\fR\fR | |
445 | .ad | |
446 | .sp .6 | |
447 | .RS 4n | |
448 | The time this dataset was created. | |
449 | .RE | |
450 | ||
451 | .sp | |
452 | .ne 2 | |
058ac9ba | 453 | .na |
330d06f9 MA |
454 | \fB\fBclones\fR\fR |
455 | .ad | |
456 | .sp .6 | |
457 | .RS 4n | |
458 | For snapshots, this property is a comma-separated list of filesystems or | |
459 | volumes which are clones of this snapshot. The clones' \fBorigin\fR property | |
460 | is this snapshot. If the \fBclones\fR property is not empty, then this | |
8fd888ba RL |
461 | snapshot can not be destroyed (even with the \fB-r\fR or \fB-f\fR options). The |
462 | roles of origin and clone can be swapped by promoting the clone with the | |
463 | \fBzfs promote\fR command. | |
330d06f9 MA |
464 | .RE |
465 | ||
466 | .sp | |
467 | .ne 2 | |
468 | .na | |
058ac9ba BB |
469 | \fB\fBdefer_destroy\fR\fR |
470 | .ad | |
471 | .sp .6 | |
472 | .RS 4n | |
3b204150 | 473 | This property is \fBon\fR if the snapshot has been marked for deferred destruction by using the \fBzfs destroy\fR \fB-d\fR command. Otherwise, the property is \fBoff\fR. |
058ac9ba BB |
474 | .RE |
475 | ||
476 | .sp | |
477 | .ne 2 | |
058ac9ba | 478 | .na |
788eb90c JJ |
479 | \fB\fBfilesystem_count\fR |
480 | .ad | |
481 | .sp .6 | |
482 | .RS 4n | |
483 | The total number of filesystems and volumes that exist under this location in the | |
484 | dataset tree. This value is only available when a \fBfilesystem_limit\fR has | |
485 | been set somewhere in the tree under which the dataset resides. | |
486 | .RE | |
487 | ||
488 | .sp | |
489 | .ne 2 | |
490 | .na | |
24a64651 MA |
491 | \fB\fBlogicalreferenced\fR\fR |
492 | .ad | |
493 | .sp .6 | |
494 | .RS 4n | |
495 | The amount of space that is "logically" accessible by this dataset. See | |
496 | the \fBreferenced\fR property. The logical space ignores the effect of | |
497 | the \fBcompression\fR and \fBcopies\fR properties, giving a quantity | |
498 | closer to the amount of data that applications see. However, it does | |
499 | include space consumed by metadata. | |
500 | .sp | |
501 | This property can also be referred to by its shortened column name, | |
502 | \fBlrefer\fR. | |
503 | .RE | |
504 | ||
505 | .sp | |
506 | .ne 2 | |
507 | .na | |
508 | \fB\fBlogicalused\fR\fR | |
509 | .ad | |
510 | .sp .6 | |
511 | .RS 4n | |
512 | The amount of space that is "logically" consumed by this dataset and all | |
513 | its descendents. See the \fBused\fR property. The logical space | |
514 | ignores the effect of the \fBcompression\fR and \fBcopies\fR properties, | |
515 | giving a quantity closer to the amount of data that applications see. | |
516 | However, it does include space consumed by metadata. | |
517 | .sp | |
518 | This property can also be referred to by its shortened column name, | |
519 | \fBlused\fR. | |
520 | .RE | |
521 | ||
522 | .sp | |
523 | .ne 2 | |
524 | .na | |
058ac9ba BB |
525 | \fB\fBmounted\fR\fR |
526 | .ad | |
527 | .sp .6 | |
528 | .RS 4n | |
529 | For file systems, indicates whether the file system is currently mounted. This property can be either \fByes\fR or \fBno\fR. | |
530 | .RE | |
531 | ||
532 | .sp | |
533 | .ne 2 | |
058ac9ba BB |
534 | .na |
535 | \fB\fBorigin\fR\fR | |
536 | .ad | |
537 | .sp .6 | |
538 | .RS 4n | |
c5ee7513 | 539 | For cloned file systems or volumes, the snapshot from which the clone was created. The origin cannot be destroyed (even with the \fB-r\fR or \fB-f\fR options) so long as a clone exists. See also the \fBclones\fR property. |
058ac9ba BB |
540 | .RE |
541 | ||
542 | .sp | |
543 | .ne 2 | |
058ac9ba | 544 | .na |
47dfff3b MA |
545 | \fB\fBreceive_resume_token\fR\fR |
546 | .ad | |
547 | .sp .6 | |
548 | .RS 4n | |
549 | For filesystems or volumes which have saved partially-completed state from \fBzfs receive -s\fR , this opaque token can be provided to \fBzfs send -t\fR to resume and complete the \fBzfs receive\fR. | |
550 | .RE | |
551 | ||
552 | .sp | |
553 | .ne 2 | |
554 | .mk | |
555 | .na | |
058ac9ba BB |
556 | \fB\fBreferenced\fR\fR |
557 | .ad | |
558 | .sp .6 | |
559 | .RS 4n | |
560 | The amount of data that is accessible by this dataset, which may or may not be shared with other datasets in the pool. When a snapshot or clone is created, it initially references the same amount of space as the file system or snapshot it was created from, since its contents are identical. | |
561 | .sp | |
562 | This property can also be referred to by its shortened column name, \fBrefer\fR. | |
563 | .RE | |
564 | ||
f5fc4aca MA |
565 | .sp |
566 | .ne 2 | |
f5fc4aca MA |
567 | .na |
568 | \fB\fBrefcompressratio\fR\fR | |
569 | .ad | |
570 | .sp .6 | |
571 | .RS 4n | |
572 | The compression ratio achieved for the \fBreferenced\fR space of this | |
573 | dataset, expressed as a multiplier. See also the \fBcompressratio\fR | |
574 | property. | |
575 | .RE | |
576 | ||
058ac9ba BB |
577 | .sp |
578 | .ne 2 | |
058ac9ba | 579 | .na |
788eb90c JJ |
580 | \fB\fBsnapshot_count\fR |
581 | .ad | |
582 | .sp .6 | |
583 | .RS 4n | |
584 | The total number of snapshots that exist under this location in the dataset tree. | |
585 | This value is only available when a \fBsnapshot_limit\fR has been set somewhere | |
586 | in the tree under which the dataset resides. | |
587 | .RE | |
588 | ||
589 | .sp | |
590 | .ne 2 | |
591 | .na | |
058ac9ba BB |
592 | \fB\fBtype\fR\fR |
593 | .ad | |
594 | .sp .6 | |
595 | .RS 4n | |
596 | The type of dataset: \fBfilesystem\fR, \fBvolume\fR, or \fBsnapshot\fR. | |
597 | .RE | |
598 | ||
599 | .sp | |
600 | .ne 2 | |
058ac9ba BB |
601 | .na |
602 | \fB\fBused\fR\fR | |
603 | .ad | |
604 | .sp .6 | |
605 | .RS 4n | |
fdbaf44f | 606 | The amount of space consumed by this dataset and all its descendents. This is the value that is checked against this dataset's quota and reservation. The space used does not include this dataset's reservation, but does take into account the reservations of any descendent datasets. The amount of space that a dataset consumes from its parent, as well as the amount of space that is freed if this dataset is recursively destroyed, is the greater of its space used and its reservation. |
058ac9ba | 607 | .sp |
fdbaf44f | 608 | The used space of a snapshot (see the "Snapshots" section) is space that is referenced exclusively by this snapshot. If this snapshot is destroyed, the amount of \fBused\fR space will be freed. Space that is shared by multiple snapshots isn't accounted for in this metric. When a snapshot is destroyed, space that was previously shared with this snapshot can become unique to snapshots adjacent to it, thus changing the used space of those snapshots. The used space of the latest snapshot can also be affected by changes in the file system. Note that the \fBused\fR space of a snapshot is a subset of the \fBwritten\fR space of the snapshot. |
058ac9ba | 609 | .sp |
8fd888ba | 610 | The amount of space used, available, or referenced does not take into account pending changes. Pending changes are generally accounted for within a few seconds. Committing a change to a disk using \fBfsync\fR(2) or \fBO_SYNC\fR (see \fBopen\fR(2)) does not necessarily guarantee that the space usage information is updated immediately. |
058ac9ba BB |
611 | .RE |
612 | ||
613 | .sp | |
614 | .ne 2 | |
058ac9ba BB |
615 | .na |
616 | \fB\fBusedby*\fR\fR | |
617 | .ad | |
618 | .sp .6 | |
619 | .RS 4n | |
9bb3e153 | 620 | The \fBusedby*\fR properties decompose the \fBused\fR properties into the various reasons that space is used. Specifically, \fBused\fR = \fBusedbychildren\fR + \fBusedbydataset\fR + \fBusedbyrefreservation\fR + \fBusedbysnapshots\fR. These properties are only available for datasets created on \fBzpool\fR version 13 or higher pools. |
058ac9ba BB |
621 | .RE |
622 | ||
623 | .sp | |
624 | .ne 2 | |
058ac9ba BB |
625 | .na |
626 | \fB\fBusedbychildren\fR\fR | |
627 | .ad | |
628 | .sp .6 | |
629 | .RS 4n | |
630 | The amount of space used by children of this dataset, which would be freed if all the dataset's children were destroyed. | |
631 | .RE | |
632 | ||
633 | .sp | |
634 | .ne 2 | |
058ac9ba BB |
635 | .na |
636 | \fB\fBusedbydataset\fR\fR | |
637 | .ad | |
638 | .sp .6 | |
639 | .RS 4n | |
640 | The amount of space used by this dataset itself, which would be freed if the dataset were destroyed (after first removing any \fBrefreservation\fR and destroying any necessary snapshots or descendents). | |
641 | .RE | |
642 | ||
643 | .sp | |
644 | .ne 2 | |
058ac9ba BB |
645 | .na |
646 | \fB\fBusedbyrefreservation\fR\fR | |
647 | .ad | |
648 | .sp .6 | |
649 | .RS 4n | |
650 | The amount of space used by a \fBrefreservation\fR set on this dataset, which would be freed if the \fBrefreservation\fR was removed. | |
651 | .RE | |
652 | ||
653 | .sp | |
654 | .ne 2 | |
058ac9ba BB |
655 | .na |
656 | \fB\fBusedbysnapshots\fR\fR | |
657 | .ad | |
658 | .sp .6 | |
659 | .RS 4n | |
660 | The amount of space consumed by snapshots of this dataset. In particular, it is the amount of space that would be freed if all of this dataset's snapshots were destroyed. Note that this is not simply the sum of the snapshots' \fBused\fR properties because space can be shared by multiple snapshots. | |
661 | .RE | |
662 | ||
663 | .sp | |
664 | .ne 2 | |
058ac9ba | 665 | .na |
1de321e6 JX |
666 | \fB\fBuserobjused@\fR\fIuser\fR\fR |
667 | .br | |
058ac9ba BB |
668 | \fB\fBuserused@\fR\fIuser\fR\fR |
669 | .ad | |
670 | .sp .6 | |
671 | .RS 4n | |
672 | The amount of space consumed by the specified user in this dataset. Space is charged to the owner of each file, as displayed by \fBls\fR \fB-l\fR. The amount of space charged is displayed by \fBdu\fR and \fBls\fR \fB-s\fR. See the \fBzfs userspace\fR subcommand for more information. | |
673 | .sp | |
674 | Unprivileged users can access only their own space usage. The root user, or a user who has been granted the \fBuserused\fR privilege with \fBzfs allow\fR, can access everyone's usage. | |
675 | .sp | |
676 | The \fBuserused@\fR... properties are not displayed by \fBzfs get all\fR. The user's name must be appended after the \fB@\fR symbol, using one of the following forms: | |
677 | .RS +4 | |
678 | .TP | |
679 | .ie t \(bu | |
680 | .el o | |
681 | \fIPOSIX name\fR (for example, \fBjoe\fR) | |
682 | .RE | |
683 | .RS +4 | |
684 | .TP | |
685 | .ie t \(bu | |
686 | .el o | |
687 | \fIPOSIX numeric ID\fR (for example, \fB789\fR) | |
688 | .RE | |
689 | .RS +4 | |
690 | .TP | |
691 | .ie t \(bu | |
692 | .el o | |
693 | \fISID name\fR (for example, \fBjoe.smith@mydomain\fR) | |
694 | .RE | |
695 | .RS +4 | |
696 | .TP | |
697 | .ie t \(bu | |
698 | .el o | |
699 | \fISID numeric ID\fR (for example, \fBS-1-123-456-789\fR) | |
700 | .RE | |
701 | .RE | |
6a107f41 | 702 | Files created on Linux always have POSIX owners. |
058ac9ba | 703 | |
1de321e6 JX |
704 | .RS 4n |
705 | The \fBuserobjused\fR is similar to \fBuserused\fR but instead it counts the number of objects consumed by \fIuser\fR. This feature doesn't count the internal objects used by ZFS, therefore it may under count a few objects comparing with the results of third-party tool such as \fBdfs -i\fR. | |
706 | When the property \fBxattr=on\fR is set on a fileset, ZFS will create additional objects per-file to store extended attributes. These additional objects are reflected in the \fBuserobjused\fR value and are counted against the user's \fBuserobjquota\fR. When a filesystem is configured to use \fBxattr=sa\fR no additional internal objects are required. | |
707 | .RE | |
708 | ||
058ac9ba BB |
709 | .sp |
710 | .ne 2 | |
058ac9ba BB |
711 | .na |
712 | \fB\fBuserrefs\fR\fR | |
713 | .ad | |
714 | .sp .6 | |
715 | .RS 4n | |
716 | This property is set to the number of user holds on this snapshot. User holds are set by using the \fBzfs hold\fR command. | |
717 | .RE | |
718 | ||
719 | .sp | |
720 | .ne 2 | |
058ac9ba BB |
721 | .na |
722 | \fB\fBgroupused@\fR\fIgroup\fR\fR | |
1de321e6 JX |
723 | .br |
724 | \fB\fBgroupobjused@\fR\fIgroup\fR\fR | |
058ac9ba BB |
725 | .ad |
726 | .sp .6 | |
727 | .RS 4n | |
728 | The amount of space consumed by the specified group in this dataset. Space is charged to the group of each file, as displayed by \fBls\fR \fB-l\fR. See the \fBuserused@\fR\fIuser\fR property for more information. | |
729 | .sp | |
730 | Unprivileged users can only access their own groups' space usage. The root user, or a user who has been granted the \fBgroupused\fR privilege with \fBzfs allow\fR, can access all groups' usage. | |
731 | .RE | |
732 | ||
1de321e6 JX |
733 | .RS 4n |
734 | The \fBgroupobjused\fR is similar to \fBgroupused\fR but instead it counts the number of objects consumed by \fIgroup\fR. | |
735 | When the property \fBxattr=on\fR is set on a fileset, ZFS will create additional objects per-file to store extended attributes. These additional objects are reflected in the \fBgroupobjused\fR value and are counted against the group's \fBgroupobjquota.\fR. When a filesystem is configured to use \fBxattr=sa\fR no additional internal objects are required. | |
736 | .RE | |
737 | ||
058ac9ba BB |
738 | .sp |
739 | .ne 2 | |
058ac9ba BB |
740 | .na |
741 | \fB\fBvolblocksize\fR=\fIblocksize\fR\fR | |
742 | .ad | |
743 | .sp .6 | |
744 | .RS 4n | |
7e0754c6 RL |
745 | This property, which is only valid on volumes, specifies the block size of the volume. Any power of two from 512B to 128KiB is valid. The default is 8KiB. |
746 | .sp | |
747 | This property cannot be changed after the volume is created. | |
058ac9ba BB |
748 | .sp |
749 | This property can also be referred to by its shortened column name, \fBvolblock\fR. | |
750 | .RE | |
751 | ||
330d06f9 MA |
752 | .sp |
753 | .ne 2 | |
754 | .na | |
755 | \fB\fBwritten\fR\fR | |
756 | .ad | |
757 | .sp .6 | |
758 | .RS 4n | |
fdbaf44f GM |
759 | The amount of space \fBreferenced\fR by this dataset, that was written since the previous snapshot |
760 | (i.e. that is not referenced by the previous snapshot). | |
330d06f9 MA |
761 | .RE |
762 | ||
763 | .sp | |
764 | .ne 2 | |
765 | .na | |
766 | \fB\fBwritten@\fR\fIsnapshot\fR\fR | |
767 | .ad | |
768 | .sp .6 | |
769 | .RS 4n | |
770 | The amount of \fBreferenced\fR space written to this dataset since the | |
771 | specified snapshot. This is the space that is referenced by this dataset | |
772 | but was not referenced by the specified snapshot. | |
773 | .sp | |
774 | The \fIsnapshot\fR may be specified as a short snapshot name (just the part | |
775 | after the \fB@\fR), in which case it will be interpreted as a snapshot in | |
776 | the same filesystem as this dataset. | |
777 | The \fIsnapshot\fR be a full snapshot name (\fIfilesystem\fR@\fIsnapshot\fR), | |
778 | which for clones may be a snapshot in the origin's filesystem (or the origin | |
779 | of the origin's filesystem, etc). | |
780 | .RE | |
781 | ||
058ac9ba BB |
782 | .sp |
783 | .LP | |
784 | The following native properties can be used to change the behavior of a \fBZFS\fR dataset. | |
785 | .sp | |
786 | .ne 2 | |
058ac9ba | 787 | .na |
d919da83 | 788 | \fB\fBaclinherit\fR=\fBrestricted\fR | \fBdiscard\fR | \fBnoallow\fR | \fBpassthrough\fR | \fBpassthrough-x\fR\fR |
058ac9ba BB |
789 | .ad |
790 | .sp .6 | |
791 | .RS 4n | |
792 | Controls how \fBACL\fR entries are inherited when files and directories are created. A file system with an \fBaclinherit\fR property of \fBdiscard\fR does not inherit any \fBACL\fR entries. A file system with an \fBaclinherit\fR property value of \fBnoallow\fR only inherits inheritable \fBACL\fR entries that specify "deny" permissions. The property value \fBrestricted\fR (the default) removes the \fBwrite_acl\fR and \fBwrite_owner\fR permissions when the \fBACL\fR entry is inherited. A file system with an \fBaclinherit\fR property value of \fBpassthrough\fR inherits all inheritable \fBACL\fR entries without any modifications made to the \fBACL\fR entries when they are inherited. A file system with an \fBaclinherit\fR property value of \fBpassthrough-x\fR has the same meaning as \fBpassthrough\fR, except that the \fBowner@\fR, \fBgroup@\fR, and \fBeveryone@\fR \fBACE\fRs inherit the execute permission only if the file creation mode also requests the execute bit. | |
793 | .sp | |
794 | When the property value is set to \fBpassthrough\fR, files are created with a mode determined by the inheritable \fBACE\fRs. If no inheritable \fBACE\fRs exist that affect the mode, then the mode is set in accordance to the requested mode from the application. | |
023699cd MM |
795 | .sp |
796 | The \fBaclinherit\fR property does not apply to Posix ACLs. | |
058ac9ba BB |
797 | .RE |
798 | ||
799 | .sp | |
800 | .ne 2 | |
058ac9ba | 801 | .na |
8fd888ba | 802 | \fB\fBacltype\fR=\fBoff\fR | \fBnoacl\fR | \fBposixacl\fR \fR |
058ac9ba BB |
803 | .ad |
804 | .sp .6 | |
805 | .RS 4n | |
023699cd | 806 | Controls whether ACLs are enabled and if so what type of ACL to use. When |
8fd888ba | 807 | a file system has the \fBacltype\fR property set to \fBoff\fR (the default) |
023699cd MM |
808 | then ACLs are disabled. Setting the \fBacltype\fR property to \fBposixacl\fR |
809 | indicates Posix ACLs should be used. Posix ACLs are specific to Linux and | |
810 | are not functional on other platforms. Posix ACLs are stored as an xattr and | |
811 | therefore will not overwrite any existing ZFS/NFSv4 ACLs which may be set. | |
812 | Currently only \fBposixacls\fR are supported on Linux. | |
813 | .sp | |
814 | To obtain the best performance when setting \fBposixacl\fR users are strongly | |
815 | encouraged to set the \fBxattr=sa\fR property. This will result in the | |
816 | Posix ACL being stored more efficiently on disk. But as a consequence of this | |
8f343973 | 817 | all new xattrs will only be accessible from ZFS implementations which support |
023699cd | 818 | the \fBxattr=sa\fR property. See the \fBxattr\fR property for more details. |
8fd888ba RL |
819 | .sp |
820 | The value \fBnoacl\fR is an alias for \fBoff\fR. | |
058ac9ba BB |
821 | .RE |
822 | ||
823 | .sp | |
824 | .ne 2 | |
058ac9ba BB |
825 | .na |
826 | \fB\fBatime\fR=\fBon\fR | \fBoff\fR\fR | |
827 | .ad | |
828 | .sp .6 | |
829 | .RS 4n | |
a5eb2d87 RL |
830 | Controls whether the access time for files is updated when they are read. Setting this property to \fBoff\fR avoids producing write traffic when reading files and can result in significant performance gains, though it might confuse mailers and other similar utilities. The default value is \fBon\fR. See also \fBrelatime\fR below. |
831 | .sp | |
832 | The values \fBon\fR and \fBoff\fR are equivalent to the \fBatime\fR and \fBnoatime\fR mount options. | |
058ac9ba BB |
833 | .RE |
834 | ||
835 | .sp | |
836 | .ne 2 | |
058ac9ba BB |
837 | .na |
838 | \fB\fBcanmount\fR=\fBon\fR | \fBoff\fR | \fBnoauto\fR\fR | |
839 | .ad | |
840 | .sp .6 | |
841 | .RS 4n | |
842 | If this property is set to \fBoff\fR, the file system cannot be mounted, and is ignored by \fBzfs mount -a\fR. Setting this property to \fBoff\fR is similar to setting the \fBmountpoint\fR property to \fBnone\fR, except that the dataset still has a normal \fBmountpoint\fR property, which can be inherited. Setting this property to \fBoff\fR allows datasets to be used solely as a mechanism to inherit properties. One example of setting \fBcanmount=\fR\fBoff\fR is to have two datasets with the same \fBmountpoint\fR, so that the children of both datasets appear in the same directory, but might have different inherited characteristics. | |
843 | .sp | |
844 | When the \fBnoauto\fR option is set, a dataset can only be mounted and unmounted explicitly. The dataset is not mounted automatically when the dataset is created or imported, nor is it mounted by the \fBzfs mount -a\fR command or unmounted by the \fBzfs unmount -a\fR command. | |
845 | .sp | |
a5eb2d87 RL |
846 | This property is not inherited. Every dataset defaults to \fBon\fR independently. |
847 | .sp | |
848 | The values \fBon\fR and \fBnoauto\fR are equivalent to the \fBauto\fR and \fBnoauto\fR mount options. | |
058ac9ba BB |
849 | .RE |
850 | ||
851 | .sp | |
852 | .ne 2 | |
058ac9ba | 853 | .na |
3c67d83a | 854 | \fB\fBchecksum\fR=\fBon\fR | \fBoff\fR | \fBfletcher2\fR | \fBfletcher4\fR | \fBsha256\fR | \fBnoparity\fR | \fBsha512\fR | \fBskein\fR | \fBedonr\fR\fR |
058ac9ba BB |
855 | .ad |
856 | .sp .6 | |
857 | .RS 4n | |
3c67d83a TH |
858 | Controls the checksum used to verify data integrity. The default value is |
859 | \fBon\fR, which automatically selects an appropriate algorithm (currently, | |
860 | \fBfletcher4\fR, but this may change in future releases). The value \fBoff\fR | |
861 | disables integrity checking on user data. The value \fBnoparity\fR not only | |
862 | disables integrity but also disables maintaining parity for user data. | |
863 | This setting is used internally by a dump device residing on a RAID-Z pool and | |
864 | should not be used by any other dataset. Disabling checksums is \fBNOT\fR a | |
865 | recommended practice. | |
058ac9ba | 866 | .sp |
3c67d83a TH |
867 | The \fBsha512\fR, \fBskein\fR, and \fBedonr\fR checksum algorithms require |
868 | enabling the appropriate features on the pool. Please see zpool-features for | |
869 | more information on these algorithms. | |
870 | ||
058ac9ba BB |
871 | Changing this property affects only newly-written data. |
872 | .RE | |
873 | ||
874 | .sp | |
875 | .ne 2 | |
058ac9ba | 876 | .na |
d919da83 | 877 | \fB\fBcompression\fR=\fBoff\fR | \fBon\fR | \fBlzjb\fR | \fBlz4\fR | |
99197f03 | 878 | \fBgzip\fR | \fBgzip-\fR\fIN\fR | \fBzle\fR\fR |
058ac9ba BB |
879 | .ad |
880 | .sp .6 | |
881 | .RS 4n | |
99197f03 | 882 | Controls the compression algorithm used for this dataset. |
f4605f07 | 883 | .sp |
99197f03 JG |
884 | Setting compression to \fBon\fR indicates that the current default |
885 | compression algorithm should be used. The default balances compression | |
886 | and decompression speed, with compression ratio and is expected to | |
887 | work well on a wide variety of workloads. Unlike all other settings for | |
888 | this property, \fBon\fR does not select a fixed compression type. As | |
889 | new compression algorithms are added to ZFS and enabled on a pool, the | |
890 | default compression algorithm may change. The current default compression | |
6b4e21c6 | 891 | algorithm is either \fBlzjb\fR or, if the \fBlz4_compress\fR feature is |
99197f03 | 892 | enabled, \fBlz4\fR. |
f4605f07 | 893 | .sp |
99197f03 JG |
894 | The \fBlzjb\fR compression algorithm is optimized for performance while |
895 | providing decent data compression. | |
058ac9ba | 896 | .sp |
9759c60f ED |
897 | The \fBlz4\fR compression algorithm is a high-performance replacement |
898 | for the \fBlzjb\fR algorithm. It features significantly faster | |
899 | compression and decompression, as well as a moderately higher | |
900 | compression ratio than \fBlzjb\fR, but can only be used on pools with | |
901 | the \fBlz4_compress\fR feature set to \fIenabled\fR. See | |
902 | \fBzpool-features\fR(5) for details on ZFS feature flags and the | |
903 | \fBlz4_compress\fR feature. | |
904 | .sp | |
99197f03 JG |
905 | The \fBgzip\fR compression algorithm uses the same compression as |
906 | the \fBgzip\fR(1) command. You can specify the \fBgzip\fR level by using the | |
907 | value \fBgzip-\fR\fIN\fR where \fIN\fR is an integer from 1 (fastest) to 9 | |
908 | (best compression ratio). Currently, \fBgzip\fR is equivalent to \fBgzip-6\fR | |
909 | (which is also the default for \fBgzip\fR(1)). The \fBzle\fR compression | |
910 | algorithm compresses runs of zeros. | |
911 | .sp | |
912 | This property can also be referred to by its shortened column name | |
913 | \fBcompress\fR. Changing this property affects only newly-written data. | |
058ac9ba BB |
914 | .RE |
915 | ||
916 | .sp | |
917 | .ne 2 | |
058ac9ba BB |
918 | .na |
919 | \fB\fBcopies\fR=\fB1\fR | \fB2\fR | \fB3\fR\fR | |
920 | .ad | |
921 | .sp .6 | |
922 | .RS 4n | |
923 | Controls the number of copies of data stored for this dataset. These copies are in addition to any redundancy provided by the pool, for example, mirroring or RAID-Z. The copies are stored on different disks, if possible. The space used by multiple copies is charged to the associated file and dataset, changing the \fBused\fR property and counting against quotas and reservations. | |
924 | .sp | |
8fd888ba RL |
925 | Changing this property only affects newly-written data. |
926 | .sp | |
927 | Remember that \fBZFS\fR will not import a pool with a missing top-level vdev. Do NOT create, for example, a two-disk, striped pool and set \fBcopies=\fR\fI2\fR on some datasets thinking you have setup redundancy for them. When one disk dies, you will not be able to import the pool and will have lost all of your data. | |
058ac9ba BB |
928 | .RE |
929 | ||
c8f25918 KA |
930 | .sp |
931 | .ne 2 | |
c8f25918 | 932 | .na |
d919da83 | 933 | \fB\fBdedup\fR=\fBoff\fR | \fBon\fR | \fBverify\fR | \fBsha256\fR[,\fBverify\fR]\fR |
c8f25918 KA |
934 | .ad |
935 | .sp .6 | |
936 | .RS 4n | |
937 | Controls whether deduplication is in effect for a dataset. The default value is \fBoff\fR. The default checksum used for deduplication is \fBsha256\fR (subject to change). When \fBdedup\fR is enabled, the \fBdedup\fR checksum algorithm overrides the \fBchecksum\fR property. Setting the value to \fBverify\fR is equivalent to specifying \fBsha256,verify\fR. | |
938 | .sp | |
939 | If the property is set to \fBverify\fR, then, whenever two blocks have the same signature, ZFS will do a byte-for-byte comparison with the existing block to ensure that the contents are identical. | |
971808ec TF |
940 | .sp |
941 | Unless necessary, deduplication should NOT be enabled on a system. See \fBDeduplication\fR above. | |
c8f25918 KA |
942 | .RE |
943 | ||
058ac9ba BB |
944 | .sp |
945 | .ne 2 | |
058ac9ba BB |
946 | .na |
947 | \fB\fBdevices\fR=\fBon\fR | \fBoff\fR\fR | |
948 | .ad | |
949 | .sp .6 | |
950 | .RS 4n | |
951 | Controls whether device nodes can be opened on this file system. The default value is \fBon\fR. | |
a5eb2d87 RL |
952 | .sp |
953 | The values \fBon\fR and \fBoff\fR are equivalent to the \fBdev\fR and \fBnodev\fR mount options. | |
058ac9ba BB |
954 | .RE |
955 | ||
956 | .sp | |
957 | .ne 2 | |
058ac9ba | 958 | .na |
50c957f7 NB |
959 | \fB\fBdnodesize\fR=\fBlegacy\fR | \fBauto\fR | \fB1k\fR | \fB2k\fR | \fB4k\fR | \fB8k\fR | \fB16k\fR\fR |
960 | .ad | |
961 | .sp .6 | |
962 | .RS 4n | |
963 | Specifies a compatibility mode or literal value for the size of dnodes | |
964 | in the file system. The default value is \fBlegacy\fR. Setting this | |
965 | property to a value other than \fBlegacy\fR requires the | |
966 | \fBlarge_dnode\fR pool feature to be enabled. | |
967 | .sp | |
968 | Consider setting \fBdnodesize\fR to \fBauto\fR if the dataset uses the | |
969 | \fBxattr=sa\fR property setting and the workload makes heavy use of | |
970 | extended attributes. This may be applicable to SELinux-enabled systems, | |
971 | Lustre servers, and Samba servers, for example. Literal values are | |
972 | supported for cases where the optimal size is known in advance and for | |
973 | performance testing. | |
974 | .sp | |
975 | Leave \fBdnodesize\fR set to \fBlegacy\fR if you need to receive | |
976 | a \fBzfs send\fR stream of this dataset on a pool that doesn't enable | |
977 | the \fBlarge_dnode\fR feature, or if you need to import this pool on a | |
978 | system that doesn't support the \fBlarge_dnode\fR feature. | |
979 | .sp | |
980 | This property can also be referred to by its shortened column name, | |
981 | \fBdnsize\fR. | |
982 | .RE | |
983 | ||
984 | .sp | |
985 | .ne 2 | |
986 | .mk | |
987 | .na | |
058ac9ba BB |
988 | \fB\fBexec\fR=\fBon\fR | \fBoff\fR\fR |
989 | .ad | |
990 | .sp .6 | |
991 | .RS 4n | |
992 | Controls whether processes can be executed from within this file system. The default value is \fBon\fR. | |
a5eb2d87 RL |
993 | .sp |
994 | The values \fBon\fR and \fBoff\fR are equivalent to the \fBexec\fR and \fBnoexec\fR mount options. | |
058ac9ba BB |
995 | .RE |
996 | ||
c8f25918 KA |
997 | .sp |
998 | .ne 2 | |
c8f25918 | 999 | .na |
d919da83 | 1000 | \fB\fBmlslabel\fR=\fBnone\fR\fR | \fIlabel\fR |
c8f25918 KA |
1001 | .ad |
1002 | .sp .6 | |
1003 | .RS 4n | |
1004 | The \fBmlslabel\fR property is a sensitivity label that determines if a dataset can be mounted in a zone on a system with Trusted Extensions enabled. If the labeled dataset matches the labeled zone, the dataset can be mounted and accessed from the labeled zone. | |
1005 | .sp | |
1006 | When the \fBmlslabel\fR property is not set, the default value is \fBnone\fR. Setting the \fBmlslabel\fR property to \fBnone\fR is equivalent to removing the property. | |
1007 | .sp | |
1008 | The \fBmlslabel\fR property can be modified only when Trusted Extensions is enabled and only with appropriate privilege. Rights to modify it cannot be delegated. When changing a label to a higher label or setting the initial dataset label, the \fB{PRIV_FILE_UPGRADE_SL}\fR privilege is required. When changing a label to a lower label or the default (\fBnone\fR), the \fB{PRIV_FILE_DOWNGRADE_SL}\fR privilege is required. Changing the dataset to labels other than the default can be done only when the dataset is not mounted. When a dataset with the default label is mounted into a labeled-zone, the mount operation automatically sets the \fBmlslabel\fR property to the label of that zone. | |
1009 | .sp | |
1010 | When Trusted Extensions is \fBnot\fR enabled, only datasets with the default label (\fBnone\fR) can be mounted. | |
1011 | .sp | |
1012 | Zones are a Solaris feature and are not relevant on Linux. | |
1013 | .RE | |
1014 | ||
058ac9ba BB |
1015 | .sp |
1016 | .ne 2 | |
058ac9ba | 1017 | .na |
d919da83 | 1018 | \fB\fBfilesystem_limit\fR=\fBnone\fR\fR | \fIcount\fR |
788eb90c JJ |
1019 | .ad |
1020 | .sp .6 | |
1021 | .RS 4n | |
1022 | Limits the number of filesystems and volumes that can exist under this point in | |
1023 | the dataset tree. The limit is not enforced if the user is allowed to change | |
1024 | the limit. Setting a filesystem_limit on a descendent of a filesystem that | |
1025 | already has a filesystem_limit does not override the ancestor's filesystem_limit, | |
1026 | but rather imposes an additional limit. This feature must be enabled to be used | |
1027 | (see \fBzpool-features\fR(5)). | |
1028 | .RE | |
1029 | ||
1030 | .sp | |
1031 | .ne 2 | |
1032 | .na | |
058ac9ba BB |
1033 | \fB\fBmountpoint\fR=\fIpath\fR | \fBnone\fR | \fBlegacy\fR\fR |
1034 | .ad | |
1035 | .sp .6 | |
1036 | .RS 4n | |
6b4e21c6 | 1037 | Controls the mount point used for this file system. See the "Mount Points" section for more information on how this property is used. |
058ac9ba BB |
1038 | .sp |
1039 | When the \fBmountpoint\fR property is changed for a file system, the file system and any children that inherit the mount point are unmounted. If the new value is \fBlegacy\fR, then they remain unmounted. Otherwise, they are automatically remounted in the new location if the property was previously \fBlegacy\fR or \fBnone\fR, or if they were mounted before the property was changed. In addition, any shared file systems are unshared and shared in the new location. | |
1040 | .RE | |
1041 | ||
1042 | .sp | |
1043 | .ne 2 | |
058ac9ba | 1044 | .na |
d919da83 | 1045 | \fB\fBnbmand\fR=\fBoff\fR | \fBon\fR\fR |
058ac9ba BB |
1046 | .ad |
1047 | .sp .6 | |
1048 | .RS 4n | |
a5eb2d87 RL |
1049 | Controls whether the file system should be mounted with \fBnbmand\fR (Non Blocking mandatory locks). This is used for \fBCIFS\fR clients. Changes to this property only take effect when the file system is umounted and remounted. See \fBmount\fR(1M) on a Solaris system for more information on \fBnbmand\fR mounts. |
1050 | .sp | |
1051 | The values \fBon\fR and \fBoff\fR are equivalent to the \fBnbmand\fR and \fBnonbmand\fR mount options. | |
1052 | .sp | |
1053 | This property is not used on Linux. | |
058ac9ba BB |
1054 | .RE |
1055 | ||
1056 | .sp | |
1057 | .ne 2 | |
058ac9ba BB |
1058 | .na |
1059 | \fB\fBprimarycache\fR=\fBall\fR | \fBnone\fR | \fBmetadata\fR\fR | |
1060 | .ad | |
1061 | .sp .6 | |
1062 | .RS 4n | |
1063 | Controls what is cached in the primary cache (ARC). If this property is set to \fBall\fR, then both user data and metadata is cached. If this property is set to \fBnone\fR, then neither user data nor metadata is cached. If this property is set to \fBmetadata\fR, then only metadata is cached. The default value is \fBall\fR. | |
1064 | .RE | |
1065 | ||
1066 | .sp | |
1067 | .ne 2 | |
058ac9ba | 1068 | .na |
d919da83 | 1069 | \fB\fBquota\fR=\fBnone\fR | \fIsize\fR\fR |
058ac9ba BB |
1070 | .ad |
1071 | .sp .6 | |
1072 | .RS 4n | |
1073 | Limits the amount of space a dataset and its descendents can consume. This property enforces a hard limit on the amount of space used. This includes all space consumed by descendents, including file systems and snapshots. Setting a quota on a descendent of a dataset that already has a quota does not override the ancestor's quota, but rather imposes an additional limit. | |
1074 | .sp | |
1075 | Quotas cannot be set on volumes, as the \fBvolsize\fR property acts as an implicit quota. | |
1076 | .RE | |
1077 | ||
1078 | .sp | |
1079 | .ne 2 | |
058ac9ba | 1080 | .na |
d919da83 | 1081 | \fB\fBsnapshot_limit\fR=\fBnone\fR\fR | \fIcount\fR |
788eb90c JJ |
1082 | .ad |
1083 | .sp .6 | |
1084 | .RS 4n | |
1085 | Limits the number of snapshots that can be created on a dataset and its | |
1086 | descendents. Setting a snapshot_limit on a descendent of a dataset that already | |
1087 | has a snapshot_limit does not override the ancestor's snapshot_limit, but | |
1088 | rather imposes an additional limit. The limit is not enforced if the user is | |
1089 | allowed to change the limit. For example, this means that recursive snapshots | |
1090 | taken from the global zone are counted against each delegated dataset within | |
1091 | a zone. This feature must be enabled to be used (see \fBzpool-features\fR(5)). | |
1092 | .RE | |
1093 | ||
1094 | .sp | |
1095 | .ne 2 | |
1096 | .na | |
d919da83 | 1097 | \fB\fBuserquota@\fR\fIuser\fR=\fBnone\fR | \fIsize\fR\fR |
1de321e6 JX |
1098 | .br |
1099 | \fB\fBuserobjquota@\fR\fIuser\fR=\fBnone\fR | \fIcount\fR\fR | |
058ac9ba BB |
1100 | .ad |
1101 | .sp .6 | |
1102 | .RS 4n | |
8fd888ba | 1103 | Limits the amount of space consumed by the specified user. Similar to the \fBrefquota\fR property, the \fBuserquota\fR space calculation does not include space that is used by descendent datasets, such as snapshots and clones. User space consumption is identified by the \fBuserspace@\fR\fIuser\fR property. See the \fBzfs userspace\fR subcommand for more information. |
058ac9ba | 1104 | .sp |
8fd888ba | 1105 | Enforcement of user quotas may be delayed by several seconds. This delay means that a user might exceed their quota before the system notices that they are over quota and begins to refuse additional writes with the \fBEDQUOT\fR error message. |
058ac9ba BB |
1106 | .sp |
1107 | Unprivileged users can only access their own groups' space usage. The root user, or a user who has been granted the \fBuserquota\fR privilege with \fBzfs allow\fR, can get and set everyone's quota. | |
1108 | .sp | |
1109 | This property is not available on volumes, on file systems before version 4, or on pools before version 15. The \fBuserquota@\fR... properties are not displayed by \fBzfs get all\fR. The user's name must be appended after the \fB@\fR symbol, using one of the following forms: | |
1110 | .RS +4 | |
1111 | .TP | |
1112 | .ie t \(bu | |
1113 | .el o | |
1114 | \fIPOSIX name\fR (for example, \fBjoe\fR) | |
1115 | .RE | |
1116 | .RS +4 | |
1117 | .TP | |
1118 | .ie t \(bu | |
1119 | .el o | |
1120 | \fIPOSIX numeric ID\fR (for example, \fB789\fR) | |
1121 | .RE | |
1122 | .RS +4 | |
1123 | .TP | |
1124 | .ie t \(bu | |
1125 | .el o | |
1126 | \fISID name\fR (for example, \fBjoe.smith@mydomain\fR) | |
1127 | .RE | |
1128 | .RS +4 | |
1129 | .TP | |
1130 | .ie t \(bu | |
1131 | .el o | |
1132 | \fISID numeric ID\fR (for example, \fBS-1-123-456-789\fR) | |
1133 | .RE | |
1134 | .RE | |
6a107f41 | 1135 | Files created on Linux always have POSIX owners. |
058ac9ba | 1136 | |
1de321e6 JX |
1137 | .RS 4 |
1138 | The \fBuserobjquota\fR is similar to \fBuserquota\fR but it limits the number of objects a \fIuser\fR can create. | |
1139 | Please refer to \fBuserobjused\fR for more information about how ZFS counts object usage. | |
1140 | .RE | |
1141 | ||
058ac9ba BB |
1142 | .sp |
1143 | .ne 2 | |
058ac9ba | 1144 | .na |
d919da83 | 1145 | \fB\fBgroupquota@\fR\fIgroup\fR=\fBnone\fR\fR | \fIsize\fR |
1de321e6 JX |
1146 | .br |
1147 | \fB\fBgroupobjquota@\fR\fIgroup\fR=\fBnone\fR\fR | \fIcount\fR | |
058ac9ba BB |
1148 | .ad |
1149 | .sp .6 | |
1150 | .RS 4n | |
1151 | Limits the amount of space consumed by the specified group. Group space consumption is identified by the \fBuserquota@\fR\fIuser\fR property. | |
1152 | .sp | |
1153 | Unprivileged users can access only their own groups' space usage. The root user, or a user who has been granted the \fBgroupquota\fR privilege with \fBzfs allow\fR, can get and set all groups' quotas. | |
1de321e6 JX |
1154 | |
1155 | The \fBgroupobjquota\fR is similar to \fBgroupquota\fR but it limits that the \fIgroup\fR can consume \fIcount\fR number of objects at most. | |
1156 | Please refer to \fBuserobjused\fR for more information about how zfs counts object usage. | |
058ac9ba BB |
1157 | .RE |
1158 | ||
1159 | .sp | |
1160 | .ne 2 | |
058ac9ba | 1161 | .na |
d919da83 | 1162 | \fB\fBreadonly\fR=\fBoff\fR | \fBon\fR\fR |
058ac9ba BB |
1163 | .ad |
1164 | .sp .6 | |
1165 | .RS 4n | |
1166 | Controls whether this dataset can be modified. The default value is \fBoff\fR. | |
1167 | .sp | |
1168 | This property can also be referred to by its shortened column name, \fBrdonly\fR. | |
a5eb2d87 RL |
1169 | .sp |
1170 | The values \fBon\fR and \fBoff\fR are equivalent to the \fBro\fR and \fBrw\fR mount options. | |
058ac9ba BB |
1171 | .RE |
1172 | ||
1173 | .sp | |
1174 | .ne 2 | |
058ac9ba BB |
1175 | .na |
1176 | \fB\fBrecordsize\fR=\fIsize\fR\fR | |
1177 | .ad | |
1178 | .sp .6 | |
1179 | .RS 4n | |
6b4e21c6 | 1180 | Specifies a suggested block size for files in the file system. This property is designed solely for use with database workloads that access files in fixed-size records. \fBZFS\fR automatically tunes block sizes according to internal algorithms optimized for typical access patterns. |
058ac9ba BB |
1181 | .sp |
1182 | For databases that create very large files but access them in small random chunks, these algorithms may be suboptimal. Specifying a \fBrecordsize\fR greater than or equal to the record size of the database can result in significant performance gains. Use of this property for general purpose file systems is strongly discouraged, and may adversely affect performance. | |
1183 | .sp | |
7e0754c6 | 1184 | Any power of two from 512B to 1MiB is valid. The default is 128KiB. Values larger than 128KiB require the pool have the \fBlarge_blocks\fR feature enabled. See \fBzpool-features\fR(5) for details on ZFS feature flags and the \fBlarge_blocks\fR feature. |
058ac9ba BB |
1185 | .sp |
1186 | Changing the file system's \fBrecordsize\fR affects only files created afterward; existing files are unaffected. | |
1187 | .sp | |
1188 | This property can also be referred to by its shortened column name, \fBrecsize\fR. | |
1189 | .RE | |
1190 | ||
1191 | .sp | |
1192 | .ne 2 | |
058ac9ba | 1193 | .na |
faf0f58c MA |
1194 | \fB\fBredundant_metadata\fR=\fBall\fR | \fBmost\fR\fR |
1195 | .ad | |
1196 | .sp .6 | |
1197 | .RS 4n | |
1198 | Controls what types of metadata are stored redundantly. ZFS stores an | |
1199 | extra copy of metadata, so that if a single block is corrupted, the | |
1200 | amount of user data lost is limited. This extra copy is in addition to | |
1201 | any redundancy provided at the pool level (e.g. by mirroring or RAID-Z), | |
1202 | and is in addition to an extra copy specified by the \fBcopies\fR | |
1203 | property (up to a total of 3 copies). For example if the pool is | |
1204 | mirrored, \fBcopies\fR=2, and \fBredundant_metadata\fR=most, then ZFS | |
1205 | stores 6 copies of most metadata, and 4 copies of data and some | |
1206 | metadata. | |
1207 | .sp | |
1208 | When set to \fBall\fR, ZFS stores an extra copy of all metadata. If a | |
1209 | single on-disk block is corrupt, at worst a single block of user data | |
1210 | (which is \fBrecordsize\fR bytes long) can be lost. | |
1211 | .sp | |
1212 | When set to \fBmost\fR, ZFS stores an extra copy of most types of | |
1213 | metadata. This can improve performance of random writes, because less | |
1214 | metadata must be written. In practice, at worst about 100 blocks (of | |
1215 | \fBrecordsize\fR bytes each) of user data can be lost if a single | |
1216 | on-disk block is corrupt. The exact behavior of which metadata blocks | |
1217 | are stored redundantly may change in future releases. | |
1218 | .sp | |
1219 | The default value is \fBall\fR. | |
1220 | .RE | |
1221 | ||
1222 | .sp | |
1223 | .ne 2 | |
1224 | .na | |
d919da83 | 1225 | \fB\fBrefquota\fR=\fBnone\fR | \fIsize\fR\fR |
058ac9ba BB |
1226 | .ad |
1227 | .sp .6 | |
1228 | .RS 4n | |
1229 | Limits the amount of space a dataset can consume. This property enforces a hard limit on the amount of space used. This hard limit does not include space used by descendents, including file systems and snapshots. | |
1230 | .RE | |
1231 | ||
1232 | .sp | |
1233 | .ne 2 | |
058ac9ba | 1234 | .na |
d919da83 | 1235 | \fB\fBrefreservation\fR=\fBnone\fR | \fIsize\fR\fR |
058ac9ba BB |
1236 | .ad |
1237 | .sp .6 | |
1238 | .RS 4n | |
1239 | The minimum amount of space guaranteed to a dataset, not including its descendents. When the amount of space used is below this value, the dataset is treated as if it were taking up the amount of space specified by \fBrefreservation\fR. The \fBrefreservation\fR reservation is accounted for in the parent datasets' space used, and counts against the parent datasets' quotas and reservations. | |
1240 | .sp | |
8fd888ba RL |
1241 | If \fBrefreservation\fR is set, a snapshot is only allowed if there is enough free pool space outside of this reservation to accommodate the current number of \fBreferenced\fR bytes in the dataset (which are the bytes to be referenced by the snapshot). This is necessary to continue to provide the \fBrefreservation\fRguarantee to the dataset. |
1242 | .sp | |
1243 | For volumes, see also \fBvolsize\fR. | |
058ac9ba BB |
1244 | .sp |
1245 | This property can also be referred to by its shortened column name, \fBrefreserv\fR. | |
1246 | .RE | |
1247 | ||
6d111134 TC |
1248 | .sp |
1249 | .ne 2 | |
6d111134 | 1250 | .na |
d919da83 | 1251 | \fB\fBrelatime\fR=\fBoff\fR | \fBon\fR\fR |
6d111134 TC |
1252 | .ad |
1253 | .sp .6 | |
1254 | .RS 4n | |
1255 | Controls the manner in which the access time is updated when \fBatime=on\fR is set. Turning this property \fBon\fR causes the access time to be updated relative to the modify or change time. Access time is only updated if the previous access time was earlier than the current modify or change time or if the existing access time hasn't been updated within the past 24 hours. The default value is \fBoff\fR. | |
a5eb2d87 RL |
1256 | .sp |
1257 | The values \fBon\fR and \fBoff\fR are equivalent to the \fBrelatime\fR and \fBnorelatime\fR mount options. | |
6d111134 TC |
1258 | .RE |
1259 | ||
058ac9ba BB |
1260 | .sp |
1261 | .ne 2 | |
058ac9ba | 1262 | .na |
d919da83 | 1263 | \fB\fBreservation\fR=\fBnone\fR | \fIsize\fR\fR |
058ac9ba BB |
1264 | .ad |
1265 | .sp .6 | |
1266 | .RS 4n | |
1267 | The minimum amount of space guaranteed to a dataset and its descendents. When the amount of space used is below this value, the dataset is treated as if it were taking up the amount of space specified by its reservation. Reservations are accounted for in the parent datasets' space used, and count against the parent datasets' quotas and reservations. | |
1268 | .sp | |
1269 | This property can also be referred to by its shortened column name, \fBreserv\fR. | |
1270 | .RE | |
1271 | ||
1272 | .sp | |
1273 | .ne 2 | |
058ac9ba BB |
1274 | .na |
1275 | \fB\fBsecondarycache\fR=\fBall\fR | \fBnone\fR | \fBmetadata\fR\fR | |
1276 | .ad | |
1277 | .sp .6 | |
1278 | .RS 4n | |
1279 | Controls what is cached in the secondary cache (L2ARC). If this property is set to \fBall\fR, then both user data and metadata is cached. If this property is set to \fBnone\fR, then neither user data nor metadata is cached. If this property is set to \fBmetadata\fR, then only metadata is cached. The default value is \fBall\fR. | |
1280 | .RE | |
1281 | ||
1282 | .sp | |
1283 | .ne 2 | |
058ac9ba BB |
1284 | .na |
1285 | \fB\fBsetuid\fR=\fBon\fR | \fBoff\fR\fR | |
1286 | .ad | |
1287 | .sp .6 | |
1288 | .RS 4n | |
a5eb2d87 RL |
1289 | Controls whether the setuid bit is respected for the file system. The default value is \fBon\fR. |
1290 | .sp | |
1291 | The values \fBon\fR and \fBoff\fR are equivalent to the \fBsuid\fR and \fBnosuid\fR mount options. | |
058ac9ba BB |
1292 | .RE |
1293 | ||
058ac9ba BB |
1294 | .sp |
1295 | .ne 2 | |
058ac9ba | 1296 | .na |
d919da83 | 1297 | \fB\fBsharesmb\fR=\fBoff\fR | \fBon\fR |
058ac9ba BB |
1298 | .ad |
1299 | .sp .6 | |
1300 | .RS 4n | |
645fb9cc | 1301 | Controls whether the file system is shared by using \fBSamba USERSHARES\fR, and what options are to be used. Otherwise, the file system is automatically shared and unshared with the \fBzfs share\fR and \fBzfs unshare\fR commands. If the property is set to \fBon\fR, the \fBnet\fR(8) command is invoked to create a \fBUSERSHARE\fR. |
058ac9ba | 1302 | .sp |
8c5edae9 | 1303 | Because \fBSMB\fR shares requires a resource name, a unique resource name is constructed from the dataset name. The constructed name is a copy of the dataset name except that the characters in the dataset name, which would be invalid in the resource name, are replaced with underscore (\fB_\fR) characters. Linux does not currently support additional options which might be available on Solaris. |
058ac9ba | 1304 | .sp |
645fb9cc | 1305 | If the \fBsharesmb\fR property is set to \fBoff\fR, the file systems are unshared. |
058ac9ba | 1306 | .sp |
9bb3e153 | 1307 | In Linux, the share is created with the ACL (Access Control List) "Everyone:F" ("F" stands for "full permissions", ie. read and write permissions) and no guest access (which means Samba must be able to authenticate a real user, system passwd/shadow, LDAP or smbpasswd based) by default. This means that any additional access control (disallow specific user specific access etc) must be done on the underlaying filesystem. |
4a5b1218 TF |
1308 | .sp |
1309 | .in +2 | |
1310 | Example to mount a SMB filesystem shared through ZFS (share/tmp): | |
4a5b1218 TF |
1311 | Note that a user and his/her password \fBmust\fR be given! |
1312 | .sp | |
1313 | .in +2 | |
1314 | smbmount //127.0.0.1/share_tmp /mnt/tmp -o user=workgroup/turbo,password=obrut,uid=1000 | |
1315 | .in -2 | |
1316 | .in -2 | |
645fb9cc TF |
1317 | .sp |
1318 | .ne 2 | |
645fb9cc TF |
1319 | .na |
1320 | \fBMinimal /etc/samba/smb.conf configuration\fR | |
1321 | .sp | |
1322 | .in +2 | |
9bb3e153 | 1323 | * Samba will need to listen to 'localhost' (127.0.0.1) for the zfs utilities to communicate with Samba. This is the default behavior for most Linux distributions. |
645fb9cc | 1324 | .sp |
4a5b1218 TF |
1325 | * Samba must be able to authenticate a user. This can be done in a number of ways, depending on if using the system password file, LDAP or the Samba specific smbpasswd file. How to do this is outside the scope of this manual. Please refer to the smb.conf(5) manpage for more information. |
1326 | .sp | |
1327 | * See the \fBUSERSHARE\fR section of the \fBsmb.conf\fR(5) man page for all configuration options in case you need to modify any options to the share afterwards. Do note that any changes done with the 'net' command will be undone if the share is every unshared (such as at a reboot etc). In the future, ZoL will be able to set specific options directly using sharesmb=<option>. | |
645fb9cc TF |
1328 | .sp |
1329 | .in -2 | |
058ac9ba BB |
1330 | .RE |
1331 | ||
1332 | .sp | |
1333 | .ne 2 | |
058ac9ba | 1334 | .na |
d919da83 | 1335 | \fB\fBsharenfs\fR=\fBoff\fR | \fBon\fR | \fIopts\fR\fR |
058ac9ba BB |
1336 | .ad |
1337 | .sp .6 | |
1338 | .RS 4n | |
beb4be77 TF |
1339 | Controls whether the file system is shared via \fBNFS\fR, and what options are used. A file system with a \fBsharenfs\fR property of \fBoff\fR is managed with the \fBexportfs\fR(8) command and entries in \fB/etc/exports\fR file. Otherwise, the file system is automatically shared and unshared with the \fBzfs share\fR and \fBzfs unshare\fR commands. If the property is set to \fBon\fR, the dataset is shared using the \fBexportfs\fR(8) command in the following manner (see \fBexportfs\fR(8) for the meaning of the different options): |
1340 | .sp | |
1341 | .in +4 | |
1342 | .nf | |
1343 | /usr/sbin/exportfs -i -o sec=sys,rw,no_subtree_check,no_root_squash,mountpoint *:<mountpoint of dataset> | |
1344 | .fi | |
1345 | .in -4 | |
1346 | .sp | |
1347 | Otherwise, the \fBexportfs\fR(8) command is invoked with options equivalent to the contents of this property. | |
058ac9ba BB |
1348 | .sp |
1349 | When the \fBsharenfs\fR property is changed for a dataset, the dataset and any children inheriting the property are re-shared with the new options, only if the property was previously \fBoff\fR, or if they were shared before the property was changed. If the new property is \fBoff\fR, the file systems are unshared. | |
1350 | .RE | |
1351 | ||
1352 | .sp | |
1353 | .ne 2 | |
058ac9ba | 1354 | .na |
9bb3e153 | 1355 | \fB\fBlogbias\fR=\fBlatency\fR | \fBthroughput\fR\fR |
058ac9ba BB |
1356 | .ad |
1357 | .sp .6 | |
1358 | .RS 4n | |
1359 | Provide a hint to ZFS about handling of synchronous requests in this dataset. If \fBlogbias\fR is set to \fBlatency\fR (the default), ZFS will use pool log devices (if configured) to handle the requests at low latency. If \fBlogbias\fR is set to \fBthroughput\fR, ZFS will not use configured pool log devices. ZFS will instead optimize synchronous operations for global pool throughput and efficient use of resources. | |
1360 | .RE | |
1361 | ||
0b4d1b58 ED |
1362 | .sp |
1363 | .ne 2 | |
0b4d1b58 ED |
1364 | .na |
1365 | \fB\fBsnapdev\fR=\fBhidden\fR | \fBvisible\fR\fR | |
1366 | .ad | |
1367 | .sp .6 | |
1368 | .RS 4n | |
1369 | Controls whether the snapshots devices of zvol's are hidden or visible. The default value is \fBhidden\fR. | |
8fd888ba RL |
1370 | .sp |
1371 | In this context, hidden does not refer to the concept of hiding files or directories by starting their name with a "." character. Even with \fBvisible\fR, the directory is still named \fB\&.zfs\fR. Instead, \fBhidden\fR means that the directory is not returned by \fBreaddir\fR(3), so it doesn't show up in directory listings done by any program, including \fBls\fR \fB-a\fR. It is still possible to chdir(2) into the directory, so \fBcd\fR \fB\&.zfs\fR works even with \fBhidden\fR. This unusual behavior is to protect against unwanted effects from applications recursing into the special \fB\&.zfs\fR directory. | |
0b4d1b58 ED |
1372 | .RE |
1373 | ||
058ac9ba BB |
1374 | .sp |
1375 | .ne 2 | |
058ac9ba BB |
1376 | .na |
1377 | \fB\fBsnapdir\fR=\fBhidden\fR | \fBvisible\fR\fR | |
1378 | .ad | |
1379 | .sp .6 | |
1380 | .RS 4n | |
1381 | Controls whether the \fB\&.zfs\fR directory is hidden or visible in the root of the file system as discussed in the "Snapshots" section. The default value is \fBhidden\fR. | |
1382 | .RE | |
1383 | ||
1384 | .sp | |
1385 | .ne 2 | |
058ac9ba | 1386 | .na |
e0fd2787 | 1387 | \fB\fBsync\fR=\fBstandard\fR | \fBalways\fR | \fBdisabled\fR\fR |
330d06f9 MA |
1388 | .ad |
1389 | .sp .6 | |
1390 | .RS 4n | |
1391 | Controls the behavior of synchronous requests (e.g. fsync, O_DSYNC). | |
e0fd2787 | 1392 | \fBstandard\fR is the POSIX specified behavior of ensuring all synchronous |
330d06f9 MA |
1393 | requests are written to stable storage and all devices are flushed to ensure |
1394 | data is not cached by device controllers (this is the default). \fBalways\fR | |
1395 | causes every file system transaction to be written and flushed before its | |
1396 | system call returns. This has a large performance penalty. \fBdisabled\fR | |
1397 | disables synchronous requests. File system transactions are only committed to | |
1398 | stable storage periodically. This option will give the highest performance. | |
1399 | However, it is very dangerous as ZFS would be ignoring the synchronous | |
1400 | transaction demands of applications such as databases or NFS. Administrators | |
1401 | should only use this option when the risks are understood. | |
1402 | .RE | |
1403 | ||
1404 | .sp | |
1405 | .ne 2 | |
1406 | .na | |
d919da83 | 1407 | \fB\fBversion\fR=\fB5\fR | \fB4\fR | \fB3\fR | \fB2\fR | \fB1\fR | \fBcurrent\fR\fR |
058ac9ba BB |
1408 | .ad |
1409 | .sp .6 | |
1410 | .RS 4n | |
8fd888ba | 1411 | The on-disk version of this file system, which is independent of the pool version. This property can only be set to later supported versions. The value \fBcurrent\fR automatically selects the latest supported version. See the \fBzfs upgrade\fR command. |
058ac9ba BB |
1412 | .RE |
1413 | ||
1414 | .sp | |
1415 | .ne 2 | |
058ac9ba BB |
1416 | .na |
1417 | \fB\fBvolsize\fR=\fIsize\fR\fR | |
1418 | .ad | |
1419 | .sp .6 | |
1420 | .RS 4n | |
8fd888ba | 1421 | For volumes, specifies the logical size of the volume. By default, creating a volume establishes a \fBrefreservation\fR equal to the volume size plus the metadata required for a fully-written volume. (For pool version 8 or lower, a \fBreservation\fR is set instead.) Any changes to \fBvolsize\fR are reflected in an equivalent change to the \fBrefreservation\fR. The \fBvolsize\fR can only be set to a multiple of \fBvolblocksize\fR, and cannot be zero. |
058ac9ba | 1422 | .sp |
8fd888ba | 1423 | Without the reservation, the volume could run out of space, resulting in undefined behavior or data corruption, depending on how the volume is used. These effects can also occur when the volume size is changed while it is in use (particularly when shrinking the size). Extreme care should be used when adjusting the volume size. |
058ac9ba | 1424 | .sp |
8fd888ba | 1425 | A "sparse volume" (also known as "thin provisioning") can be created by specifying the \fB-s\fR option to the \fBzfs create -V\fR command, or by removing (or changing) the \fBrefreservation\fR after the volume has been created. A "sparse volume" is a volume where the \fBrefreservation\fR is unset or less then the volume size. Consequently, writes to a sparse volume can fail with \fBENOSPC\fR when the pool is low on space. For a sparse volume, changes to \fBvolsize\fR are not reflected in the reservation. |
058ac9ba BB |
1426 | .RE |
1427 | ||
1428 | .sp | |
1429 | .ne 2 | |
058ac9ba | 1430 | .na |
d919da83 | 1431 | \fB\fBvscan\fR=\fBoff\fR | \fBon\fR\fR |
058ac9ba BB |
1432 | .ad |
1433 | .sp .6 | |
1434 | .RS 4n | |
1435 | Controls whether regular files should be scanned for viruses when a file is opened and closed. In addition to enabling this property, the virus scan service must also be enabled for virus scanning to occur. The default value is \fBoff\fR. | |
6a107f41 RL |
1436 | .sp |
1437 | This property is not used on Linux. | |
058ac9ba BB |
1438 | .RE |
1439 | ||
1440 | .sp | |
1441 | .ne 2 | |
058ac9ba | 1442 | .na |
7c2448a3 | 1443 | \fB\fBxattr\fR=\fBon\fR | \fBoff\fR | \fBsa\fR\fR |
058ac9ba BB |
1444 | .ad |
1445 | .sp .6 | |
1446 | .RS 4n | |
7c2448a3 BB |
1447 | Controls whether extended attributes are enabled for this file system. Two |
1448 | styles of extended attributes are supported either directory based or system | |
1449 | attribute based. | |
1450 | .sp | |
1451 | The default value of \fBon\fR enables directory based extended attributes. | |
1452 | This style of xattr imposes no practical limit on either the size or number of | |
1453 | xattrs which may be set on a file. Although under Linux the \fBgetxattr\fR(2) | |
1454 | and \fBsetxattr\fR(2) system calls limit the maximum xattr size to 64K. This | |
1455 | is the most compatible style of xattr and it is supported by the majority of | |
1456 | ZFS implementations. | |
1457 | .sp | |
1458 | System attribute based xattrs may be enabled by setting the value to \fBsa\fR. | |
1459 | The key advantage of this type of xattr is improved performance. Storing | |
1460 | xattrs as system attributes significantly decreases the amount of disk IO | |
1461 | required. Up to 64K of xattr data may be stored per file in the space reserved | |
1462 | for system attributes. If there is not enough space available for an xattr then | |
1463 | it will be automatically written as a directory based xattr. System attribute | |
8f343973 | 1464 | based xattrs are not accessible on platforms which do not support the |
7c2448a3 BB |
1465 | \fBxattr=sa\fR feature. |
1466 | .sp | |
1467 | The use of system attribute based xattrs is strongly encouraged for users of | |
1468 | SELinux or Posix ACLs. Both of these features heavily rely of xattrs and | |
1469 | benefit significantly from the reduced xattr access time. | |
a5eb2d87 RL |
1470 | .sp |
1471 | The values \fBon\fR and \fBoff\fR are equivalent to the \fBxattr\fR and \fBnoxattr\fR mount options. | |
058ac9ba BB |
1472 | .RE |
1473 | ||
1474 | .sp | |
1475 | .ne 2 | |
058ac9ba | 1476 | .na |
d919da83 | 1477 | \fB\fBzoned\fR=\fBoff\fR | \fBon\fR\fR |
058ac9ba BB |
1478 | .ad |
1479 | .sp .6 | |
1480 | .RS 4n | |
4da4a9e1 | 1481 | Controls whether the dataset is managed from a non-global zone. Zones are a Solaris feature and are not relevant on Linux. The default value is \fBoff\fR. |
058ac9ba BB |
1482 | .RE |
1483 | ||
1484 | .sp | |
1485 | .LP | |
1486 | The following three properties cannot be changed after the file system is created, and therefore, should be set when the file system is created. If the properties are not set with the \fBzfs create\fR or \fBzpool create\fR commands, these properties are inherited from the parent dataset. If the parent dataset lacks these properties due to having been created prior to these features being supported, the new file system will have the default values for these properties. | |
1487 | .sp | |
1488 | .ne 2 | |
058ac9ba BB |
1489 | .na |
1490 | \fB\fBcasesensitivity\fR=\fBsensitive\fR | \fBinsensitive\fR | \fBmixed\fR\fR | |
1491 | .ad | |
1492 | .sp .6 | |
1493 | .RS 4n | |
1494 | Indicates whether the file name matching algorithm used by the file system should be case-sensitive, case-insensitive, or allow a combination of both styles of matching. The default value for the \fBcasesensitivity\fR property is \fBsensitive\fR. Traditionally, UNIX and POSIX file systems have case-sensitive file names. | |
1495 | .sp | |
cab1aa29 | 1496 | The \fBmixed\fR value for the \fBcasesensitivity\fR property indicates that the file system can support requests for both case-sensitive and case-insensitive matching behavior. Currently, case-insensitive matching behavior on a file system that supports mixed behavior is limited to the Solaris CIFS server product. |
058ac9ba BB |
1497 | .RE |
1498 | ||
1499 | .sp | |
1500 | .ne 2 | |
058ac9ba BB |
1501 | .na |
1502 | \fB\fBnormalization\fR = \fBnone\fR | \fBformC\fR | \fBformD\fR | \fBformKC\fR | \fBformKD\fR\fR | |
1503 | .ad | |
1504 | .sp .6 | |
1505 | .RS 4n | |
8fd888ba RL |
1506 | Indicates whether the file system should perform a Unicode normalization of file names whenever two file names are compared, and which normalization algorithm should be used. |
1507 | .sp | |
1508 | If this property is set to a value other than \fBnone\fR (the default), and the \fButf8only\fR property was left unspecified, the \fButf8only\fR property is automatically set to \fBon\fR. See the cautionary note in the \fButf8only\fR section before modifying \fBnormalization\fR. | |
1509 | .sp | |
1510 | File names are always stored unmodified; names are normalized as part of any comparison process. Thus, \fBformC\fR and \fBformD\fR are equivalent, as are \fBformKC\fR and \fBformKD\fR. Given that, only \fBformD\fR and \fBformKD\fR make sense, as they are slightly faster because they avoid the additional canonical composition step. | |
1511 | .\" unicode.org says it's possible to quickly detect if a string is already in a given form. Since most text (basically everything but OS X) is already in NFC, this means formC could potentially be made faster. But the additional complexity probably isn't worth the likely undetectable in practice speed improvement. | |
1512 | .sp | |
1513 | The practical impact of this property is: \fBnone\fR (like traditional filesystems) allows a directory to contain two files that appear (to humans) to have the same name. The other options solve this problem, for different definitions of "the same". If you need to solve this problem and are not sure what to choose,\fBformD\fR. | |
1514 | .sp | |
1515 | This property cannot be changed after the file system is created. | |
058ac9ba BB |
1516 | .RE |
1517 | ||
1518 | .sp | |
1519 | .ne 2 | |
058ac9ba | 1520 | .na |
d919da83 | 1521 | \fB\fButf8only\fR=\fBoff\fR | \fBon\fR\fR |
058ac9ba BB |
1522 | .ad |
1523 | .sp .6 | |
1524 | .RS 4n | |
8fd888ba RL |
1525 | Indicates whether the file system should reject file names that include characters that are not present in the \fBUTF-8\fR character set. If this property is explicitly set to \fBoff\fR, the \fBnormalization\fR property must either not be explicitly set or be set to \fBnone\fR. The default value for the \fButf8only\fR property is \fBoff\fR. |
1526 | .sp | |
1527 | Note that forcing the use of \fBUTF-8\fR filenames may cause pain for users. For example, extracting files from an archive will fail if the filenames within the archive are encoded in another character set. | |
1528 | .sp | |
1529 | If you are thinking of setting this (to \fBon\fR), you probably want to set \fBnormalization\fR=\fBformD\fR which will set this property to \fBon\fR implicitly. | |
1530 | .sp | |
1531 | This property cannot be changed after the file system is created. | |
058ac9ba BB |
1532 | .RE |
1533 | ||
1534 | .sp | |
1535 | .LP | |
8fd888ba | 1536 | The \fBcasesensitivity\fR, \fBnormalization\fR, and \fButf8only\fR properties are also permissions that can be assigned to non-privileged users by using the \fBZFS\fR delegated administration feature. |
11b9ec23 MT |
1537 | .RE |
1538 | ||
1539 | .sp | |
1540 | .ne 2 | |
11b9ec23 | 1541 | .na |
d919da83 | 1542 | \fB\fBcontext\fR=\fBnone\fR | \fISELinux_User:SElinux_Role:Selinux_Type:Sensitivity_Level\fR\fR |
11b9ec23 MT |
1543 | .ad |
1544 | .sp .6 | |
1545 | .RS 4n | |
32a6c3d7 | 1546 | This flag sets the SELinux context for all files in the filesystem under the mountpoint for that filesystem. See \fBselinux\fR(8) for more information. |
11b9ec23 MT |
1547 | .RE |
1548 | ||
1549 | .sp | |
1550 | .ne 2 | |
11b9ec23 | 1551 | .na |
d919da83 | 1552 | \fB\fBfscontext\fR=\fBnone\fR | \fISELinux_User:SElinux_Role:Selinux_Type:Sensitivity_Level\fR\fR |
11b9ec23 MT |
1553 | .ad |
1554 | .sp .6 | |
1555 | .RS 4n | |
32a6c3d7 | 1556 | This flag sets the SELinux context for the filesystem being mounted. See \fBselinux\fR(8) for more information. |
11b9ec23 MT |
1557 | .RE |
1558 | ||
1559 | .sp | |
1560 | .ne 2 | |
11b9ec23 | 1561 | .na |
32a6c3d7 | 1562 | \fB\fBdefcontext\fR=\fBnone\fR | \fISELinux_User:SElinux_Role:Selinux_Type:Sensitivity_Level\fR\fR |
11b9ec23 MT |
1563 | .ad |
1564 | .sp .6 | |
1565 | .RS 4n | |
1566 | This flag sets the SELinux context for unlabeled files. See \fBselinux\fR(8) for more information. | |
1567 | .RE | |
1568 | ||
1569 | .sp | |
1570 | .ne 2 | |
11b9ec23 | 1571 | .na |
d919da83 | 1572 | \fB\fBrootcontext\fR=\fBnone\fR | \fISELinux_User:SElinux_Role:Selinux_Type:Sensitivity_Level\fR\fR |
11b9ec23 MT |
1573 | .ad |
1574 | .sp .6 | |
1575 | .RS 4n | |
1576 | This flag sets the SELinux context for the root inode of the filesystem. See \fBselinux\fR(8) for more information. | |
1577 | .RE | |
1578 | ||
f67d7090 TF |
1579 | .sp |
1580 | .ne 2 | |
f67d7090 | 1581 | .na |
d919da83 | 1582 | \fB\fBoverlay\fR=\fBoff\fR | \fBon\fR\fR |
f67d7090 TF |
1583 | .ad |
1584 | .sp .6 | |
1585 | .RS 4n | |
1586 | Allow mounting on a busy directory or a directory which already contains files/directories. This is the default mount behavior for Linux filesystems. However, for consistency with ZFS on other platforms overlay mounts are disabled by default. Set \fBoverlay=on\fR to enable overlay mounts. | |
1587 | .RE | |
1588 | ||
058ac9ba | 1589 | .SS "Temporary Mount Point Properties" |
058ac9ba | 1590 | .LP |
2d1b7b0b | 1591 | When a file system is mounted, either through \fBmount\fR(8) for legacy mounts or the \fBzfs mount\fR command for normal file systems, its mount options are set according to its properties. The correlation between properties and mount options is as follows: |
058ac9ba BB |
1592 | .sp |
1593 | .in +2 | |
1594 | .nf | |
1595 | PROPERTY MOUNT OPTION | |
a5eb2d87 RL |
1596 | atime atime/noatime |
1597 | canmount auto/noauto | |
058ac9ba BB |
1598 | devices devices/nodevices |
1599 | exec exec/noexec | |
1600 | readonly ro/rw | |
0282c413 | 1601 | relatime relatime/norelatime |
a5eb2d87 RL |
1602 | setuid suid/nosuid |
1603 | xattr xattr/noxattr | |
1604 | nbmand nbmand/nonbmand (Solaris) | |
058ac9ba BB |
1605 | .fi |
1606 | .in -2 | |
1607 | .sp | |
1608 | ||
1609 | .sp | |
1610 | .LP | |
1611 | In addition, these options can be set on a per-mount basis using the \fB-o\fR option, without affecting the property that is stored on disk. The values specified on the command line override the values stored in the dataset. The \fB-nosuid\fR option is an alias for \fBnodevices,nosetuid\fR. These properties are reported as "temporary" by the \fBzfs get\fR command. If the properties are changed while the dataset is mounted, the new setting overrides any temporary settings. | |
1612 | .SS "User Properties" | |
058ac9ba | 1613 | .LP |
879dbef0 | 1614 | In addition to the standard native properties, \fBZFS\fR supports arbitrary user properties. User properties have no effect on \fBZFS\fR behavior, but applications or administrators can use them to annotate datasets (file systems, volumes, and snapshots). Unlike native properties, user properties are editable on snapshots. |
058ac9ba BB |
1615 | .sp |
1616 | .LP | |
1617 | User property names must contain a colon (\fB:\fR) character to distinguish them from native properties. They may contain lowercase letters, numbers, and the following punctuation characters: colon (\fB:\fR), dash (\fB-\fR), period (\fB\&.\fR), and underscore (\fB_\fR). The expected convention is that the property name is divided into two portions such as \fImodule\fR\fB:\fR\fIproperty\fR, but this namespace is not enforced by \fBZFS\fR. User property names can be at most 256 characters, and cannot begin with a dash (\fB-\fR). | |
1618 | .sp | |
1619 | .LP | |
879dbef0 | 1620 | When making programmatic use of user properties, it is strongly suggested to use a reversed \fBDNS\fR domain name for the \fImodule\fR component of property names to reduce the chance that two independently-developed packages use the same property name for different purposes. For example, property names beginning with \fBcom.sun\fR. are reserved for definition by Oracle Corporation (which acquired Sun Microsystems). |
058ac9ba BB |
1621 | .sp |
1622 | .LP | |
9bb3e153 | 1623 | The values of user properties are arbitrary strings, are always inherited, and are never validated. All of the commands that operate on properties (\fBzfs list\fR, \fBzfs get\fR, \fBzfs set\fR, and so forth) can be used to manipulate both native properties and user properties. Use the \fBzfs inherit\fR command to clear a user property. If the property is not defined in any parent dataset, it is removed entirely. Property values are limited to 1024 characters. |
4da4a9e1 | 1624 | .SS "ZFS Volumes as Swap" |
058ac9ba | 1625 | .LP |
52768784 BB |
1626 | \fBZFS\fR volumes may be used as Linux swap devices. After creating the volume |
1627 | with the \fBzfs create\fR command set up and enable the swap area using the | |
1628 | \fBmkswap\fR(8) and \fBswapon\fR(8) commands. Do not swap to a file on a | |
1629 | \fBZFS\fR file system. A \fBZFS\fR swap file configuration is not supported. | |
058ac9ba | 1630 | .SH SUBCOMMANDS |
058ac9ba | 1631 | .LP |
8fd888ba | 1632 | All subcommands that modify state are logged persistently to the pool in their original form. The log can be viewed with \fBzpool history\fR. |
058ac9ba BB |
1633 | .sp |
1634 | .ne 2 | |
058ac9ba BB |
1635 | .na |
1636 | \fB\fBzfs ?\fR\fR | |
1637 | .ad | |
1638 | .sp .6 | |
1639 | .RS 4n | |
1640 | Displays a help message. | |
1641 | .RE | |
1642 | ||
1643 | .sp | |
1644 | .ne 2 | |
058ac9ba BB |
1645 | .na |
1646 | \fB\fBzfs create\fR [\fB-p\fR] [\fB-o\fR \fIproperty\fR=\fIvalue\fR] ... \fIfilesystem\fR\fR | |
1647 | .ad | |
1648 | .sp .6 | |
1649 | .RS 4n | |
8fd888ba | 1650 | Creates a new \fBZFS\fR file system. The file system is automatically mounted according to the \fBmountpoint\fR and \fBcanmount\fR properties. |
058ac9ba BB |
1651 | .sp |
1652 | .ne 2 | |
058ac9ba BB |
1653 | .na |
1654 | \fB\fB-p\fR\fR | |
1655 | .ad | |
1656 | .sp .6 | |
1657 | .RS 4n | |
8fd888ba | 1658 | Creates all the non-existing parent datasets. Datasets created in this manner inherit their properties; any property specified on the command line using the \fB-o\fR option applies only to the final child file system. If the target filesystem already exists, the operation completes successfully and no properties are changed. |
058ac9ba BB |
1659 | .RE |
1660 | ||
1661 | .sp | |
1662 | .ne 2 | |
058ac9ba BB |
1663 | .na |
1664 | \fB\fB-o\fR \fIproperty\fR=\fIvalue\fR\fR | |
1665 | .ad | |
1666 | .sp .6 | |
1667 | .RS 4n | |
1668 | Sets the specified property as if the command \fBzfs set\fR \fIproperty\fR=\fIvalue\fR was invoked at the same time the dataset was created. Any editable \fBZFS\fR property can also be set at creation time. Multiple \fB-o\fR options can be specified. An error results if the same property is specified in multiple \fB-o\fR options. | |
1669 | .RE | |
1670 | ||
1671 | .RE | |
1672 | ||
1673 | .sp | |
1674 | .ne 2 | |
058ac9ba BB |
1675 | .na |
1676 | \fB\fBzfs create\fR [\fB-ps\fR] [\fB-b\fR \fIblocksize\fR] [\fB-o\fR \fIproperty\fR=\fIvalue\fR] ... \fB-V\fR \fIsize\fR \fIvolume\fR\fR | |
1677 | .ad | |
1678 | .sp .6 | |
1679 | .RS 4n | |
8fd888ba | 1680 | Creates a volume of the given size. The volume is exported as a block device in \fB/dev/zvol/\fR\fIpath\fR, where \fIpath\fR is the name of the volume in the \fBZFS\fR namespace. The size represents the logical size as exported by the device. By default, a \fBrefreservation\fR is created. |
058ac9ba | 1681 | .sp |
7e0754c6 | 1682 | \fIsize\fR is automatically rounded up to the nearest 128KiB to ensure that the volume has an integral number of blocks regardless of \fIblocksize\fR. |
058ac9ba BB |
1683 | .sp |
1684 | .ne 2 | |
058ac9ba BB |
1685 | .na |
1686 | \fB\fB-p\fR\fR | |
1687 | .ad | |
1688 | .sp .6 | |
1689 | .RS 4n | |
8fd888ba | 1690 | Creates all the non-existing parent datasets as file systems. Datasets created in this manner inherit their properties; any property specified on the command line using the \fB-o\fR option applies only to the final child volume. If the target volume already exists, the operation completes successfully and no properties are changed. |
058ac9ba BB |
1691 | .RE |
1692 | ||
1693 | .sp | |
1694 | .ne 2 | |
058ac9ba BB |
1695 | .na |
1696 | \fB\fB-s\fR\fR | |
1697 | .ad | |
1698 | .sp .6 | |
1699 | .RS 4n | |
8fd888ba | 1700 | Creates a sparse volume by omitting the automatic creation of a \fBrefreservation\fR. See \fBvolsize\fR in the Native Properties section for more information about sparse volumes. If this option is specified in conjunction with \fB-o\fR \fBrefreservation\fR, the \fBrefreservation\fR will be honored; this allows for a partial reservation on a sparse volume. |
058ac9ba BB |
1701 | .RE |
1702 | ||
1703 | .sp | |
1704 | .ne 2 | |
058ac9ba BB |
1705 | .na |
1706 | \fB\fB-o\fR \fIproperty\fR=\fIvalue\fR\fR | |
1707 | .ad | |
1708 | .sp .6 | |
1709 | .RS 4n | |
1710 | Sets the specified property as if the \fBzfs set\fR \fIproperty\fR=\fIvalue\fR command was invoked at the same time the dataset was created. Any editable \fBZFS\fR property can also be set at creation time. Multiple \fB-o\fR options can be specified. An error results if the same property is specified in multiple \fB-o\fR options. | |
8fd888ba RL |
1711 | .sp |
1712 | If \fB-o\fR \fBvolsize\fR is provided, the resulting behavior is undefined; it conflicts with the -V option, which is required in this mode. | |
058ac9ba BB |
1713 | .RE |
1714 | ||
1715 | .sp | |
1716 | .ne 2 | |
058ac9ba BB |
1717 | .na |
1718 | \fB\fB-b\fR \fIblocksize\fR\fR | |
1719 | .ad | |
1720 | .sp .6 | |
1721 | .RS 4n | |
1722 | Equivalent to \fB-o\fR \fBvolblocksize\fR=\fIblocksize\fR. If this option is specified in conjunction with \fB-o\fR \fBvolblocksize\fR, the resulting behavior is undefined. | |
1723 | .RE | |
1724 | ||
1725 | .RE | |
1726 | ||
1727 | .sp | |
1728 | .ne 2 | |
058ac9ba | 1729 | .na |
330d06f9 | 1730 | \fBzfs destroy\fR [\fB-fnpRrv\fR] \fIfilesystem\fR|\fIvolume\fR |
058ac9ba BB |
1731 | .ad |
1732 | .sp .6 | |
1733 | .RS 4n | |
1734 | Destroys the given dataset. By default, the command unshares any file systems that are currently shared, unmounts any file systems that are currently mounted, and refuses to destroy a dataset that has active dependents (children or clones). | |
1735 | .sp | |
1736 | .ne 2 | |
058ac9ba BB |
1737 | .na |
1738 | \fB\fB-r\fR\fR | |
1739 | .ad | |
1740 | .sp .6 | |
1741 | .RS 4n | |
1742 | Recursively destroy all children. | |
1743 | .RE | |
1744 | ||
1745 | .sp | |
1746 | .ne 2 | |
058ac9ba BB |
1747 | .na |
1748 | \fB\fB-R\fR\fR | |
1749 | .ad | |
1750 | .sp .6 | |
1751 | .RS 4n | |
1752 | Recursively destroy all dependents, including cloned file systems outside the target hierarchy. | |
1753 | .RE | |
1754 | ||
1755 | .sp | |
1756 | .ne 2 | |
058ac9ba BB |
1757 | .na |
1758 | \fB\fB-f\fR\fR | |
1759 | .ad | |
1760 | .sp .6 | |
1761 | .RS 4n | |
8fd888ba | 1762 | Force an unmount of any file systems using the \fBzfs unmount -f\fR command. This option has no effect on non-file systems or unmounted file systems. |
058ac9ba BB |
1763 | .RE |
1764 | ||
330d06f9 MA |
1765 | .sp |
1766 | .ne 2 | |
1767 | .na | |
1768 | \fB\fB-n\fR\fR | |
1769 | .ad | |
1770 | .sp .6 | |
1771 | .RS 4n | |
1772 | Do a dry-run ("No-op") deletion. No data will be deleted. This is | |
1773 | useful in conjunction with the \fB-v\fR or \fB-p\fR flags to determine what | |
1774 | data would be deleted. | |
1775 | .RE | |
1776 | ||
1777 | .sp | |
1778 | .ne 2 | |
1779 | .na | |
1780 | \fB\fB-p\fR\fR | |
1781 | .ad | |
1782 | .sp .6 | |
1783 | .RS 4n | |
1784 | Print machine-parsable verbose information about the deleted data. | |
1785 | .RE | |
1786 | ||
1787 | .sp | |
1788 | .ne 2 | |
1789 | .na | |
1790 | \fB\fB-v\fR\fR | |
1791 | .ad | |
1792 | .sp .6 | |
1793 | .RS 4n | |
1794 | Print verbose information about the deleted data. | |
1795 | .RE | |
1796 | .sp | |
1797 | ||
8fd888ba | 1798 | Extreme care should be taken when applying either the \fB-r\fR or the \fB-R\fR options, as they can destroy large portions of a pool. |
058ac9ba BB |
1799 | .RE |
1800 | ||
1801 | .sp | |
1802 | .ne 2 | |
058ac9ba | 1803 | .na |
330d06f9 | 1804 | \fBzfs destroy\fR [\fB-dnpRrv\fR] \fIfilesystem\fR|\fIvolume\fR@\fIsnap\fR[%\fIsnap\fR][,...] |
058ac9ba BB |
1805 | .ad |
1806 | .sp .6 | |
1807 | .RS 4n | |
8fd888ba | 1808 | The specified snapshots are destroyed immediately if they have no clones and the user-initiated reference count is zero (i.e. there are no holds set with \fBzfs hold\fR). If these conditions are not met, this command returns an error, unless \fB-d\fR is supplied. |
330d06f9 MA |
1809 | .sp |
1810 | An inclusive range of snapshots may be specified by separating the | |
1811 | first and last snapshots with a percent sign. | |
1812 | The first and/or last snapshots may be left blank, in which case the | |
1813 | filesystem's oldest or newest snapshot will be implied. | |
058ac9ba | 1814 | .sp |
330d06f9 MA |
1815 | Multiple snapshots |
1816 | (or ranges of snapshots) of the same filesystem or volume may be specified | |
1817 | in a comma-separated list of snapshots. | |
1818 | Only the snapshot's short name (the | |
1819 | part after the \fB@\fR) should be specified when using a range or | |
1820 | comma-separated list to identify multiple snapshots. | |
058ac9ba BB |
1821 | .sp |
1822 | .ne 2 | |
058ac9ba BB |
1823 | .na |
1824 | \fB\fB-d\fR\fR | |
1825 | .ad | |
1826 | .sp .6 | |
1827 | .RS 4n | |
c5ee7513 | 1828 | If a snapshot does not qualify for immediate destruction, rather than returning an error, it is marked for deferred destruction. In this state, it exists as a usable, visible snapshot until both of the preconditions listed above are met, at which point it is destroyed. |
058ac9ba BB |
1829 | .RE |
1830 | ||
1831 | .sp | |
1832 | .ne 2 | |
058ac9ba BB |
1833 | .na |
1834 | \fB\fB-r\fR\fR | |
1835 | .ad | |
1836 | .sp .6 | |
1837 | .RS 4n | |
3b204150 | 1838 | Destroy (or mark for deferred destruction) all snapshots with this name in descendent file systems. |
058ac9ba BB |
1839 | .RE |
1840 | ||
1841 | .sp | |
1842 | .ne 2 | |
058ac9ba BB |
1843 | .na |
1844 | \fB\fB-R\fR\fR | |
1845 | .ad | |
1846 | .sp .6 | |
1847 | .RS 4n | |
13fe0198 MA |
1848 | Recursively destroy all clones of these snapshots, including the clones, |
1849 | snapshots, and children. If this flag is specified, the \fB-d\fR flag will | |
1850 | have no effect. | |
058ac9ba BB |
1851 | .RE |
1852 | ||
330d06f9 MA |
1853 | .sp |
1854 | .ne 2 | |
1855 | .na | |
1856 | \fB\fB-n\fR\fR | |
1857 | .ad | |
1858 | .sp .6 | |
1859 | .RS 4n | |
1860 | Do a dry-run ("No-op") deletion. No data will be deleted. This is | |
1861 | useful in conjunction with the \fB-v\fR or \fB-p\fR flags to determine what | |
1862 | data would be deleted. | |
1863 | .RE | |
1864 | ||
1865 | .sp | |
1866 | .ne 2 | |
1867 | .na | |
1868 | \fB\fB-p\fR\fR | |
1869 | .ad | |
1870 | .sp .6 | |
1871 | .RS 4n | |
1872 | Print machine-parsable verbose information about the deleted data. | |
1873 | .RE | |
1874 | ||
1875 | .sp | |
1876 | .ne 2 | |
1877 | .na | |
1878 | \fB\fB-v\fR\fR | |
1879 | .ad | |
1880 | .sp .6 | |
1881 | .RS 4n | |
1882 | Print verbose information about the deleted data. | |
1883 | .RE | |
1884 | ||
1885 | .sp | |
13fe0198 | 1886 | Extreme care should be taken when applying either the \fB-r\fR or the \fB-R\fR |
330d06f9 MA |
1887 | options, as they can destroy large portions of a pool and cause unexpected |
1888 | behavior for mounted file systems in use. | |
1889 | .RE | |
1890 | ||
058ac9ba BB |
1891 | .RE |
1892 | ||
1893 | .sp | |
1894 | .ne 2 | |
058ac9ba | 1895 | .na |
da536844 MA |
1896 | \fBzfs destroy\fR \fIfilesystem\fR|\fIvolume\fR#\fIbookmark\fR |
1897 | .ad | |
1898 | .sp .6 | |
1899 | .RS 4n | |
1900 | The given bookmark is destroyed. | |
1901 | ||
1902 | .RE | |
1903 | ||
1904 | .sp | |
1905 | .ne 2 | |
1906 | .na | |
6f1ffb06 | 1907 | \fB\fBzfs snapshot\fR [\fB-r\fR] [\fB-o\fR \fIproperty\fR=\fIvalue\fR] ... \fIfilesystem@snapname\fR|\fIvolume@snapname\fR\fR ... |
058ac9ba BB |
1908 | .ad |
1909 | .sp .6 | |
1910 | .RS 4n | |
6f1ffb06 | 1911 | Creates snapshots with the given names. All previous modifications by successful system calls to the file system are part of the snapshots. Snapshots are taken atomically, so that all snapshots correspond to the same moment in time. See the "Snapshots" section for details. |
058ac9ba BB |
1912 | .sp |
1913 | .ne 2 | |
058ac9ba BB |
1914 | .na |
1915 | \fB\fB-r\fR\fR | |
1916 | .ad | |
1917 | .sp .6 | |
1918 | .RS 4n | |
6f1ffb06 | 1919 | Recursively create snapshots of all descendent datasets. |
058ac9ba BB |
1920 | .RE |
1921 | ||
1922 | .sp | |
1923 | .ne 2 | |
058ac9ba BB |
1924 | .na |
1925 | \fB\fB-o\fR \fIproperty\fR=\fIvalue\fR\fR | |
1926 | .ad | |
1927 | .sp .6 | |
1928 | .RS 4n | |
8fd888ba | 1929 | Sets the specified property; see \fBzfs set\fR for details. |
058ac9ba BB |
1930 | .RE |
1931 | ||
1932 | .RE | |
1933 | ||
1934 | .sp | |
1935 | .ne 2 | |
058ac9ba BB |
1936 | .na |
1937 | \fB\fBzfs rollback\fR [\fB-rRf\fR] \fIsnapshot\fR\fR | |
1938 | .ad | |
1939 | .sp .6 | |
1940 | .RS 4n | |
da536844 | 1941 | Roll back the given dataset to a previous snapshot. When a dataset is rolled back, all data that has changed since the snapshot is discarded, and the dataset reverts to the state at the time of the snapshot. By default, the command refuses to roll back to a snapshot other than the most recent one. In order to do so, all intermediate snapshots and bookmarks must be destroyed by specifying the \fB-r\fR option. |
058ac9ba | 1942 | .sp |
da536844 | 1943 | The \fB-rR\fR options do not recursively destroy the child snapshots of a recursive snapshot. Only direct snapshots of the specified filesystem are destroyed by either of these options. To completely roll back a recursive snapshot, you must rollback the individual child snapshots. |
058ac9ba BB |
1944 | .sp |
1945 | .ne 2 | |
058ac9ba BB |
1946 | .na |
1947 | \fB\fB-r\fR\fR | |
1948 | .ad | |
1949 | .sp .6 | |
1950 | .RS 4n | |
da536844 | 1951 | Destroy any snapshots and bookmarks more recent than the one specified. |
058ac9ba BB |
1952 | .RE |
1953 | ||
1954 | .sp | |
1955 | .ne 2 | |
058ac9ba BB |
1956 | .na |
1957 | \fB\fB-R\fR\fR | |
1958 | .ad | |
1959 | .sp .6 | |
1960 | .RS 4n | |
da536844 | 1961 | Recursively destroy any more recent snapshots and bookmarks, as well as any clones of those snapshots. |
058ac9ba BB |
1962 | .RE |
1963 | ||
1964 | .sp | |
1965 | .ne 2 | |
058ac9ba BB |
1966 | .na |
1967 | \fB\fB-f\fR\fR | |
1968 | .ad | |
1969 | .sp .6 | |
1970 | .RS 4n | |
8fd888ba | 1971 | Used with the \fB-R\fR option to force an unmount (see \fBzfs unmount -f\fR) of any clone file systems that are to be destroyed. |
058ac9ba BB |
1972 | .RE |
1973 | ||
1974 | .RE | |
1975 | ||
1976 | .sp | |
1977 | .ne 2 | |
058ac9ba BB |
1978 | .na |
1979 | \fB\fBzfs clone\fR [\fB-p\fR] [\fB-o\fR \fIproperty\fR=\fIvalue\fR] ... \fIsnapshot\fR \fIfilesystem\fR|\fIvolume\fR\fR | |
1980 | .ad | |
1981 | .sp .6 | |
1982 | .RS 4n | |
1983 | Creates a clone of the given snapshot. See the "Clones" section for details. The target dataset can be located anywhere in the \fBZFS\fR hierarchy, and is created as the same type as the original. | |
1984 | .sp | |
1985 | .ne 2 | |
058ac9ba BB |
1986 | .na |
1987 | \fB\fB-p\fR\fR | |
1988 | .ad | |
1989 | .sp .6 | |
1990 | .RS 4n | |
8fd888ba | 1991 | Creates all the non-existing parent datasets; see \fBzfs create\fR for details. |
058ac9ba BB |
1992 | .RE |
1993 | ||
1994 | .sp | |
1995 | .ne 2 | |
058ac9ba BB |
1996 | .na |
1997 | \fB\fB-o\fR \fIproperty\fR=\fIvalue\fR\fR | |
1998 | .ad | |
1999 | .sp .6 | |
2000 | .RS 4n | |
8fd888ba | 2001 | Sets the specified property; see \fBzfs set\fR for details. |
058ac9ba BB |
2002 | .RE |
2003 | ||
2004 | .RE | |
2005 | ||
2006 | .sp | |
2007 | .ne 2 | |
058ac9ba BB |
2008 | .na |
2009 | \fB\fBzfs promote\fR \fIclone-filesystem\fR\fR | |
2010 | .ad | |
2011 | .sp .6 | |
2012 | .RS 4n | |
6b4e21c6 | 2013 | Promotes a clone file system to no longer be dependent on its "origin" snapshot. This makes it possible to destroy the file system that the clone was created from. The clone parent-child dependency relationship is reversed, so that the origin file system becomes a clone of the specified file system. |
058ac9ba | 2014 | .sp |
8fd888ba | 2015 | The snapshot that was cloned, and any snapshots previous to this snapshot, are now owned by the promoted clone. The space they use moves from the origin file system to the promoted clone, so enough space must be available to accommodate these snapshots. No new space is consumed by this operation, but the space accounting is adjusted. The promoted clone must not have any conflicting snapshot names of its own. The \fBzfs rename\fR command can be used to rename any conflicting snapshots. |
058ac9ba BB |
2016 | .RE |
2017 | ||
2018 | .sp | |
2019 | .ne 2 | |
058ac9ba | 2020 | .na |
db49968e | 2021 | \fB\fBzfs rename\fR [\fB-f\fR] \fIfilesystem\fR|\fIvolume\fR|\fIsnapshot\fR\fR |
058ac9ba BB |
2022 | .ad |
2023 | .br | |
2024 | .na | |
db49968e | 2025 | \fB\fBzfs rename\fR [\fB-fp\fR] \fIfilesystem\fR|\fIvolume\fR \fIfilesystem\fR|\fIvolume\fR\fR |
058ac9ba BB |
2026 | .ad |
2027 | .sp .6 | |
2028 | .RS 4n | |
2029 | Renames the given dataset. The new target can be located anywhere in the \fBZFS\fR hierarchy, with the exception of snapshots. Snapshots can only be renamed within the parent file system or volume. When renaming a snapshot, the parent file system of the snapshot does not need to be specified as part of the second argument. Renamed file systems can inherit new mount points, in which case they are unmounted and remounted at the new mount point. | |
2030 | .sp | |
2031 | .ne 2 | |
058ac9ba BB |
2032 | .na |
2033 | \fB\fB-p\fR\fR | |
2034 | .ad | |
2035 | .sp .6 | |
2036 | .RS 4n | |
8fd888ba | 2037 | Creates all the nonexistent parent datasets; see \fBzfs create\fR for details. |
058ac9ba BB |
2038 | .RE |
2039 | ||
db49968e ES |
2040 | .sp |
2041 | .ne 2 | |
2042 | .na | |
2043 | \fB\fB-f\fR\fR | |
2044 | .ad | |
2045 | .sp .6 | |
2046 | .RS 4n | |
2047 | Force unmount any filesystems that need to be unmounted in the process. | |
2048 | .RE | |
2049 | ||
058ac9ba BB |
2050 | .RE |
2051 | ||
2052 | .sp | |
2053 | .ne 2 | |
058ac9ba BB |
2054 | .na |
2055 | \fB\fBzfs rename\fR \fB-r\fR \fIsnapshot\fR \fIsnapshot\fR\fR | |
2056 | .ad | |
2057 | .sp .6 | |
2058 | .RS 4n | |
2059 | Recursively rename the snapshots of all descendent datasets. Snapshots are the only dataset that can be renamed recursively. | |
2060 | .RE | |
2061 | ||
2062 | .sp | |
2063 | .ne 2 | |
058ac9ba | 2064 | .na |
76281da4 | 2065 | \fB\fBzfs\fR \fBlist\fR [\fB-r\fR|\fB-d\fR \fIdepth\fR] [\fB-Hp\fR] [\fB-o\fR \fIproperty\fR[,\fI\&...\fR]] [ \fB-t\fR \fItype\fR[,\fI\&...\fR]] [ \fB-s\fR \fIproperty\fR ] ... [ \fB-S\fR \fIproperty\fR ] ... [\fIfilesystem\fR|\fIvolume\fR|\fIsnapshot\fR|\fImountpoint\fR] ...\fR |
058ac9ba BB |
2066 | .ad |
2067 | .sp .6 | |
2068 | .RS 4n | |
61a3d06f | 2069 | Lists the property information for the given datasets in tabular form. If a mount point is specified, it can be an absolute pathname or a relative pathname starting with "./" (e.g. \fBzfs list ./\fR). By default, all file systems and volumes are displayed. Snapshots are displayed if the pool's \fBlistsnapshots\fR property is \fBon\fR (the default is \fBoff\fR). When listing hundreds or thousands of snapshots performance can be improved by restricting the output to only the name. In that case, it is recommended to use \fB-o name -s name\fR. The following fields are displayed by default: \fBname, used, available, referenced, mountpoint\fR |
058ac9ba BB |
2070 | .sp |
2071 | .ne 2 | |
058ac9ba BB |
2072 | .na |
2073 | \fB\fB-H\fR\fR | |
2074 | .ad | |
2075 | .sp .6 | |
2076 | .RS 4n | |
2077 | Used for scripting mode. Do not print headers and separate fields by a single tab instead of arbitrary white space. | |
2078 | .RE | |
2079 | ||
54d5378f YP |
2080 | .sp |
2081 | .ne 2 | |
54d5378f YP |
2082 | .na |
2083 | \fB\fB-p\fR\fR | |
2084 | .sp .6 | |
2085 | .RS 4n | |
2086 | Display numbers in parsable (exact) values. | |
2087 | .RE | |
2088 | ||
058ac9ba BB |
2089 | .sp |
2090 | .ne 2 | |
058ac9ba BB |
2091 | .na |
2092 | \fB\fB-r\fR\fR | |
2093 | .ad | |
2094 | .sp .6 | |
2095 | .RS 4n | |
6b4e21c6 | 2096 | Recursively display any children of the dataset on the command line. |
058ac9ba BB |
2097 | .RE |
2098 | ||
2099 | .sp | |
2100 | .ne 2 | |
058ac9ba BB |
2101 | .na |
2102 | \fB\fB-d\fR \fIdepth\fR\fR | |
2103 | .ad | |
2104 | .sp .6 | |
2105 | .RS 4n | |
2106 | Recursively display any children of the dataset, limiting the recursion to \fIdepth\fR. A depth of \fB1\fR will display only the dataset and its direct children. | |
2107 | .RE | |
2108 | ||
2109 | .sp | |
2110 | .ne 2 | |
058ac9ba BB |
2111 | .na |
2112 | \fB\fB-o\fR \fIproperty\fR\fR | |
2113 | .ad | |
2114 | .sp .6 | |
2115 | .RS 4n | |
2116 | A comma-separated list of properties to display. The property must be: | |
2117 | .RS +4 | |
2118 | .TP | |
2119 | .ie t \(bu | |
2120 | .el o | |
2121 | One of the properties described in the "Native Properties" section | |
2122 | .RE | |
2123 | .RS +4 | |
2124 | .TP | |
2125 | .ie t \(bu | |
2126 | .el o | |
2127 | A user property | |
2128 | .RE | |
2129 | .RS +4 | |
2130 | .TP | |
2131 | .ie t \(bu | |
2132 | .el o | |
2133 | The value \fBname\fR to display the dataset name | |
2134 | .RE | |
2135 | .RS +4 | |
2136 | .TP | |
2137 | .ie t \(bu | |
2138 | .el o | |
2139 | The value \fBspace\fR to display space usage properties on file systems and volumes. This is a shortcut for specifying \fB-o name,avail,used,usedsnap,usedds,usedrefreserv,usedchild\fR \fB-t filesystem,volume\fR syntax. | |
2140 | .RE | |
2141 | .RE | |
2142 | ||
2143 | .sp | |
2144 | .ne 2 | |
058ac9ba BB |
2145 | .na |
2146 | \fB\fB-s\fR \fIproperty\fR\fR | |
2147 | .ad | |
2148 | .sp .6 | |
2149 | .RS 4n | |
2150 | A property for sorting the output by column in ascending order based on the value of the property. The property must be one of the properties described in the "Properties" section, or the special value \fBname\fR to sort by the dataset name. Multiple properties can be specified at one time using multiple \fB-s\fR property options. Multiple \fB-s\fR options are evaluated from left to right in decreasing order of importance. | |
2151 | .sp | |
2152 | The following is a list of sorting criteria: | |
2153 | .RS +4 | |
2154 | .TP | |
2155 | .ie t \(bu | |
2156 | .el o | |
2157 | Numeric types sort in numeric order. | |
2158 | .RE | |
2159 | .RS +4 | |
2160 | .TP | |
2161 | .ie t \(bu | |
2162 | .el o | |
2163 | String types sort in alphabetical order. | |
2164 | .RE | |
2165 | .RS +4 | |
2166 | .TP | |
2167 | .ie t \(bu | |
2168 | .el o | |
2169 | Types inappropriate for a row sort that row to the literal bottom, regardless of the specified ordering. | |
2170 | .RE | |
2171 | .RS +4 | |
2172 | .TP | |
2173 | .ie t \(bu | |
2174 | .el o | |
2175 | If no sorting options are specified the existing behavior of \fBzfs list\fR is preserved. | |
2176 | .RE | |
2177 | .RE | |
2178 | ||
2179 | .sp | |
2180 | .ne 2 | |
058ac9ba BB |
2181 | .na |
2182 | \fB\fB-S\fR \fIproperty\fR\fR | |
2183 | .ad | |
2184 | .sp .6 | |
2185 | .RS 4n | |
6b4e21c6 | 2186 | Same as the \fB-s\fR option, but sorts by property in descending order. |
058ac9ba BB |
2187 | .RE |
2188 | ||
2189 | .sp | |
2190 | .ne 2 | |
058ac9ba BB |
2191 | .na |
2192 | \fB\fB-t\fR \fItype\fR\fR | |
2193 | .ad | |
2194 | .sp .6 | |
2195 | .RS 4n | |
da536844 | 2196 | A comma-separated list of types to display, where \fItype\fR is one of \fBfilesystem\fR, \fBsnapshot\fR, \fBsnap\fR, \fBvolume\fR, \fBbookmark\fR, or \fBall\fR. For example, specifying \fB-t snapshot\fR displays only snapshots. |
058ac9ba BB |
2197 | .RE |
2198 | ||
2199 | .RE | |
2200 | ||
2201 | .sp | |
2202 | .ne 2 | |
058ac9ba | 2203 | .na |
23de906c CW |
2204 | \fB\fBzfs set\fR \fIproperty\fR=\fIvalue\fR[ \fIproperty\fR=\fIvalue\fR]... |
2205 | \fIfilesystem\fR|\fIvolume\fR|\fIsnapshot\fR ...\fR | |
058ac9ba BB |
2206 | .ad |
2207 | .sp .6 | |
2208 | .RS 4n | |
23de906c CW |
2209 | Sets the property or list of properties to the given value(s) for each dataset. |
2210 | Only some properties can be edited. See the "Properties" section for more | |
7e0754c6 RL |
2211 | information on which properties can be set and acceptable values. User properties |
2212 | can be set on snapshots. For more information, see the "User Properties" section. | |
058ac9ba BB |
2213 | .RE |
2214 | ||
2215 | .sp | |
2216 | .ne 2 | |
e346ec25 | 2217 | \fB\fBzfs get\fR [\fB-r\fR|\fB-d\fR \fIdepth\fR] [\fB-Hp\fR] [\fB-o\fR \fIfield\fR[,...] [\fB-t\fR \fItype\fR[,...]] [\fB-s\fR \fIsource\fR[,...] "\fIall\fR" | \fIproperty\fR[,...] \fIfilesystem\fR|\fIvolume\fR|\fIsnapshot\fR ...\fR |
058ac9ba BB |
2218 | .ad |
2219 | .sp .6 | |
2220 | .RS 4n | |
2221 | Displays properties for the given datasets. If no datasets are specified, then the command displays properties for all datasets on the system. For each property, the following columns are displayed: | |
2222 | .sp | |
2223 | .in +2 | |
2224 | .nf | |
2225 | name Dataset name | |
2226 | property Property name | |
2227 | value Property value | |
2228 | source Property source. Can either be local, default, | |
0bf8501a | 2229 | temporary, inherited, received, or none (-). |
058ac9ba BB |
2230 | .fi |
2231 | .in -2 | |
2232 | .sp | |
2233 | ||
2234 | All columns are displayed by default, though this can be controlled by using the \fB-o\fR option. This command takes a comma-separated list of properties as described in the "Native Properties" and "User Properties" sections. | |
2235 | .sp | |
da536844 | 2236 | The special value \fBall\fR can be used to display all properties that apply to the given dataset's type (filesystem, volume snapshot, or bookmark). |
058ac9ba BB |
2237 | .sp |
2238 | .ne 2 | |
058ac9ba BB |
2239 | .na |
2240 | \fB\fB-r\fR\fR | |
2241 | .ad | |
2242 | .sp .6 | |
2243 | .RS 4n | |
2244 | Recursively display properties for any children. | |
2245 | .RE | |
2246 | ||
2247 | .sp | |
2248 | .ne 2 | |
058ac9ba BB |
2249 | .na |
2250 | \fB\fB-d\fR \fIdepth\fR\fR | |
2251 | .ad | |
2252 | .sp .6 | |
2253 | .RS 4n | |
2254 | Recursively display any children of the dataset, limiting the recursion to \fIdepth\fR. A depth of \fB1\fR will display only the dataset and its direct children. | |
2255 | .RE | |
2256 | ||
2257 | .sp | |
2258 | .ne 2 | |
058ac9ba BB |
2259 | .na |
2260 | \fB\fB-H\fR\fR | |
2261 | .ad | |
2262 | .sp .6 | |
2263 | .RS 4n | |
2264 | Display output in a form more easily parsed by scripts. Any headers are omitted, and fields are explicitly separated by a single tab instead of an arbitrary amount of space. | |
2265 | .RE | |
2266 | ||
2267 | .sp | |
2268 | .ne 2 | |
058ac9ba BB |
2269 | .na |
2270 | \fB\fB-o\fR \fIfield\fR\fR | |
2271 | .ad | |
2272 | .sp .6 | |
2273 | .RS 4n | |
6b4e21c6 | 2274 | A comma-separated list of columns to display. \fBname,property,value,source\fR is the default value. |
058ac9ba BB |
2275 | .RE |
2276 | ||
2277 | .sp | |
2278 | .ne 2 | |
058ac9ba BB |
2279 | .na |
2280 | \fB\fB-s\fR \fIsource\fR\fR | |
2281 | .ad | |
2282 | .sp .6 | |
2283 | .RS 4n | |
0bf8501a | 2284 | A comma-separated list of sources to display. Those properties coming from a source other than those in this list are ignored. Each source must be one of the following: \fBlocal,default,inherited,received,temporary,none\fR. The default value is all sources. |
058ac9ba BB |
2285 | .RE |
2286 | ||
2287 | .sp | |
2288 | .ne 2 | |
058ac9ba BB |
2289 | .na |
2290 | \fB\fB-p\fR\fR | |
2291 | .ad | |
2292 | .sp .6 | |
2293 | .RS 4n | |
54d5378f | 2294 | Display numbers in parsable (exact) values. |
058ac9ba BB |
2295 | .RE |
2296 | ||
2297 | .RE | |
2298 | ||
2299 | .sp | |
2300 | .ne 2 | |
058ac9ba | 2301 | .na |
0bf8501a | 2302 | \fB\fBzfs inherit\fR [\fB-rS\fR] \fIproperty\fR \fIfilesystem\fR|\fIvolume\fR|\fIsnapshot\fR ...\fR |
058ac9ba BB |
2303 | .ad |
2304 | .sp .6 | |
2305 | .RS 4n | |
0bf8501a | 2306 | Clears the specified property, causing it to be inherited from an ancestor, restored to default if no ancestor has the property set, or with the \fB-S\fR option reverted to the received value if one exists. See the "Properties" section for a listing of default values, and details on which properties can be inherited. |
058ac9ba BB |
2307 | .sp |
2308 | .ne 2 | |
058ac9ba BB |
2309 | .na |
2310 | \fB\fB-r\fR\fR | |
2311 | .ad | |
2312 | .sp .6 | |
2313 | .RS 4n | |
2314 | Recursively inherit the given property for all children. | |
2315 | .RE | |
0bf8501a PH |
2316 | .sp |
2317 | .ne 2 | |
2318 | .na | |
2319 | \fB\fB-S\fR\fR | |
2320 | .ad | |
2321 | .sp .6 | |
2322 | .RS 4n | |
2323 | Revert the property to the received value if one exists; otherwise operate as | |
2324 | if the \fB-S\fR option was not specified. | |
2325 | .RE | |
058ac9ba BB |
2326 | |
2327 | .RE | |
2328 | ||
2329 | .sp | |
2330 | .ne 2 | |
058ac9ba | 2331 | .na |
8e07f9a9 | 2332 | \fB\fBzfs upgrade\fR |
058ac9ba BB |
2333 | .ad |
2334 | .sp .6 | |
2335 | .RS 4n | |
2336 | Displays a list of file systems that are not the most recent version. | |
2337 | .RE | |
2338 | ||
8e07f9a9 RL |
2339 | .sp |
2340 | .ne 2 | |
8e07f9a9 RL |
2341 | .na |
2342 | \fB\fBzfs upgrade\fR \fB-v\fR\fR | |
2343 | .ad | |
2344 | .sp .6 | |
2345 | .RS 4n | |
2346 | Displays a list of file system versions. | |
2347 | .RE | |
2348 | ||
2349 | ||
058ac9ba BB |
2350 | .sp |
2351 | .ne 2 | |
058ac9ba BB |
2352 | .na |
2353 | \fB\fBzfs upgrade\fR [\fB-r\fR] [\fB-V\fR \fIversion\fR] [\fB-a\fR | \fIfilesystem\fR]\fR | |
2354 | .ad | |
2355 | .sp .6 | |
2356 | .RS 4n | |
2357 | Upgrades file systems to a new on-disk version. Once this is done, the file systems will no longer be accessible on systems running older versions of the software. \fBzfs send\fR streams generated from new snapshots of these file systems cannot be accessed on systems running older versions of the software. | |
2358 | .sp | |
6b4e21c6 | 2359 | In general, the file system version is independent of the pool version. See \fBzpool\fR(8) for information on the \fBzpool upgrade\fR command. |
058ac9ba BB |
2360 | .sp |
2361 | In some cases, the file system version and the pool version are interrelated and the pool version must be upgraded before the file system version can be upgraded. | |
2362 | .sp | |
2363 | .ne 2 | |
058ac9ba BB |
2364 | .na |
2365 | \fB\fB-a\fR\fR | |
2366 | .ad | |
2367 | .sp .6 | |
2368 | .RS 4n | |
8e07f9a9 | 2369 | Upgrades all file systems on all imported pools. |
058ac9ba BB |
2370 | .RE |
2371 | ||
2372 | .sp | |
2373 | .ne 2 | |
058ac9ba BB |
2374 | .na |
2375 | \fB\fIfilesystem\fR\fR | |
2376 | .ad | |
2377 | .sp .6 | |
2378 | .RS 4n | |
8e07f9a9 | 2379 | Upgrades the specified file system. |
058ac9ba BB |
2380 | .RE |
2381 | ||
2382 | .sp | |
2383 | .ne 2 | |
058ac9ba BB |
2384 | .na |
2385 | \fB\fB-r\fR\fR | |
2386 | .ad | |
2387 | .sp .6 | |
2388 | .RS 4n | |
8e07f9a9 | 2389 | Upgrades the specified file system and all descendent file systems |
058ac9ba BB |
2390 | .RE |
2391 | ||
2392 | .sp | |
2393 | .ne 2 | |
058ac9ba BB |
2394 | .na |
2395 | \fB\fB-V\fR \fIversion\fR\fR | |
2396 | .ad | |
2397 | .sp .6 | |
2398 | .RS 4n | |
8e07f9a9 | 2399 | Upgrades to the specified \fIversion\fR. If the \fB-V\fR flag is not specified, this command upgrades to the most recent version. This option can only be used to increase the version number, and only up to the most recent version supported by this software. |
058ac9ba BB |
2400 | .RE |
2401 | ||
2402 | .RE | |
2403 | ||
2404 | .sp | |
2405 | .ne 2 | |
058ac9ba | 2406 | .na |
5990da81 YP |
2407 | \fBzfs\fR \fBuserspace\fR [\fB-Hinp\fR] [\fB-o\fR \fIfield\fR[,...]] |
2408 | [\fB-s\fR \fIfield\fR] ... | |
2409 | [\fB-S\fR \fIfield\fR] ... | |
2410 | [\fB-t\fR \fItype\fR[,...]] \fIfilesystem\fR|\fIsnapshot\fR | |
058ac9ba BB |
2411 | .ad |
2412 | .sp .6 | |
2413 | .RS 4n | |
5990da81 | 2414 | Displays space consumed by, and quotas on, each user in the specified |
1de321e6 JX |
2415 | filesystem or snapshot. This corresponds to the \fBuserused@\fR\fIuser\fR, \fBuserobjused@\fR\fIuser\fR, |
2416 | \fBuserquota@\fR\fIuser\fR, and \fBuserobjquota@\fR\fIuser\fR properties. | |
058ac9ba BB |
2417 | .sp |
2418 | .ne 2 | |
058ac9ba BB |
2419 | .na |
2420 | \fB\fB-n\fR\fR | |
2421 | .ad | |
2422 | .sp .6 | |
2423 | .RS 4n | |
2424 | Print numeric ID instead of user/group name. | |
2425 | .RE | |
2426 | ||
2427 | .sp | |
2428 | .ne 2 | |
058ac9ba BB |
2429 | .na |
2430 | \fB\fB-H\fR\fR | |
2431 | .ad | |
2432 | .sp .6 | |
2433 | .RS 4n | |
8fd888ba | 2434 | Display output in a form more easily parsed by scripts. Any headers are omitted, and fields are explicitly separated by a single tab instead of an arbitrary amount of space. |
058ac9ba BB |
2435 | .RE |
2436 | ||
2437 | .sp | |
2438 | .ne 2 | |
058ac9ba BB |
2439 | .na |
2440 | \fB\fB-p\fR\fR | |
2441 | .ad | |
2442 | .sp .6 | |
2443 | .RS 4n | |
5990da81 | 2444 | Use exact (parsable) numeric output. |
058ac9ba BB |
2445 | .RE |
2446 | ||
2447 | .sp | |
2448 | .ne 2 | |
058ac9ba BB |
2449 | .na |
2450 | \fB\fB-o\fR \fIfield\fR[,...]\fR | |
2451 | .ad | |
2452 | .sp .6 | |
2453 | .RS 4n | |
5990da81 YP |
2454 | Display only the specified fields from the following |
2455 | set: \fBtype, name, used, quota\fR. The default is to display all fields. | |
058ac9ba BB |
2456 | .RE |
2457 | ||
2458 | .sp | |
2459 | .ne 2 | |
058ac9ba BB |
2460 | .na |
2461 | \fB\fB-s\fR \fIfield\fR\fR | |
2462 | .ad | |
2463 | .sp .6 | |
2464 | .RS 4n | |
5990da81 YP |
2465 | Sort output by this field. The \fIs\fR and \fIS\fR flags may be specified |
2466 | multiple times to sort first by one field, then by another. The default is | |
2467 | \fB-s type\fR \fB-s name\fR. | |
058ac9ba BB |
2468 | .RE |
2469 | ||
2470 | .sp | |
2471 | .ne 2 | |
058ac9ba BB |
2472 | .na |
2473 | \fB\fB-S\fR \fIfield\fR\fR | |
2474 | .ad | |
2475 | .sp .6 | |
2476 | .RS 4n | |
2477 | Sort by this field in reverse order. See \fB-s\fR. | |
2478 | .RE | |
2479 | ||
2480 | .sp | |
2481 | .ne 2 | |
058ac9ba BB |
2482 | .na |
2483 | \fB\fB-t\fR \fItype\fR[,...]\fR | |
2484 | .ad | |
2485 | .sp .6 | |
2486 | .RS 4n | |
5990da81 YP |
2487 | Print only the specified types from the following |
2488 | set: \fBall, posixuser, smbuser, posixgroup, smbgroup\fR. The default | |
2489 | is \fB-t posixuser,smbuser\fR. The default can be changed to include group | |
2490 | types. | |
058ac9ba BB |
2491 | .RE |
2492 | ||
2493 | .sp | |
2494 | .ne 2 | |
058ac9ba BB |
2495 | .na |
2496 | \fB\fB-i\fR\fR | |
2497 | .ad | |
2498 | .sp .6 | |
2499 | .RS 4n | |
5990da81 | 2500 | Translate SID to POSIX ID. The POSIX ID may be ephemeral if no mapping exists. |
6a107f41 | 2501 | Normal POSIX interfaces (for example, \fBstat\fR(2), \fBls\fR(1) \fB-l\fR) perform |
5990da81 YP |
2502 | this translation, so the \fB-i\fR option allows the output from \fBzfs |
2503 | userspace\fR to be compared directly with those utilities. However, \fB-i\fR | |
2504 | may lead to confusion if some files were created by an SMB user before a | |
2505 | SMB-to-POSIX name mapping was established. In such a case, some files will be owned | |
2506 | by the SMB entity and some by the POSIX entity. However, the \fB-i\fR option | |
2507 | will report that the POSIX entity has the total usage and quota for both. | |
6a107f41 RL |
2508 | .sp |
2509 | This option is not useful on Linux. | |
058ac9ba BB |
2510 | .RE |
2511 | ||
2512 | .RE | |
2513 | ||
2514 | .sp | |
2515 | .ne 2 | |
058ac9ba | 2516 | .na |
5990da81 YP |
2517 | \fBzfs\fR \fBgroupspace\fR [\fB-Hinp\fR] [\fB-o\fR \fIfield\fR[,...]] |
2518 | [\fB-s\fR \fIfield\fR] ... | |
2519 | [\fB-S\fR \fIfield\fR] ... | |
2520 | [\fB-t\fR \fItype\fR[,...]] \fIfilesystem\fR|\fIsnapshot\fR | |
058ac9ba BB |
2521 | .ad |
2522 | .sp .6 | |
2523 | .RS 4n | |
5990da81 YP |
2524 | Displays space consumed by, and quotas on, each group in the specified |
2525 | filesystem or snapshot. This subcommand is identical to \fBzfs userspace\fR, | |
2526 | except that the default types to display are \fB-t posixgroup,smbgroup\fR. | |
058ac9ba BB |
2527 | .RE |
2528 | ||
2529 | .sp | |
2530 | .ne 2 | |
058ac9ba BB |
2531 | .na |
2532 | \fB\fBzfs mount\fR\fR | |
2533 | .ad | |
2534 | .sp .6 | |
2535 | .RS 4n | |
2536 | Displays all \fBZFS\fR file systems currently mounted. | |
2537 | .RE | |
2538 | ||
2539 | .sp | |
2540 | .ne 2 | |
058ac9ba BB |
2541 | .na |
2542 | \fB\fBzfs mount\fR [\fB-vO\fR] [\fB-o\fR \fIoptions\fR] \fB-a\fR | \fIfilesystem\fR\fR | |
2543 | .ad | |
2544 | .sp .6 | |
2545 | .RS 4n | |
8fd888ba | 2546 | Mounts \fBZFS\fR file systems. This is invoked automatically as part of the boot process. |
058ac9ba BB |
2547 | .sp |
2548 | .ne 2 | |
058ac9ba BB |
2549 | .na |
2550 | \fB\fB-o\fR \fIoptions\fR\fR | |
2551 | .ad | |
2552 | .sp .6 | |
2553 | .RS 4n | |
5990da81 YP |
2554 | An optional, comma-separated list of mount options to use temporarily for the |
2555 | duration of the mount. See the "Temporary Mount Point Properties" section for | |
2556 | details. | |
058ac9ba BB |
2557 | .RE |
2558 | ||
2559 | .sp | |
2560 | .ne 2 | |
058ac9ba BB |
2561 | .na |
2562 | \fB\fB-O\fR\fR | |
2563 | .ad | |
2564 | .sp .6 | |
2565 | .RS 4n | |
6a107f41 RL |
2566 | Allow mounting the filesystem even if the target directory is not empty. |
2567 | .sp | |
2568 | On Solaris, the behavior of \fBzfs mount\fR matches \fBmount\fR and \fBzfs mount -O\fR matches \fBmount -O\fR. See \fBmount\fR(1M). | |
2569 | .sp | |
2570 | On Linux, this is the default for \fBmount\fR(8). In other words, \fBzfs mount -O\fR matches \fBmount\fR and there is no \fBmount\fR equivalent to a plain \fBzfs mount\fR. | |
058ac9ba BB |
2571 | .RE |
2572 | ||
2573 | .sp | |
2574 | .ne 2 | |
058ac9ba BB |
2575 | .na |
2576 | \fB\fB-v\fR\fR | |
2577 | .ad | |
2578 | .sp .6 | |
2579 | .RS 4n | |
8fd888ba | 2580 | Report mount progress. This is intended for use with \fBzfs mount -a\fR on a system with a significant number of filesystems. |
058ac9ba BB |
2581 | .RE |
2582 | ||
2583 | .sp | |
2584 | .ne 2 | |
058ac9ba BB |
2585 | .na |
2586 | \fB\fB-a\fR\fR | |
2587 | .ad | |
2588 | .sp .6 | |
2589 | .RS 4n | |
5990da81 YP |
2590 | Mount all available \fBZFS\fR file systems. Invoked automatically as part of |
2591 | the boot process. | |
058ac9ba BB |
2592 | .RE |
2593 | ||
2594 | .sp | |
2595 | .ne 2 | |
058ac9ba BB |
2596 | .na |
2597 | \fB\fIfilesystem\fR\fR | |
2598 | .ad | |
2599 | .sp .6 | |
2600 | .RS 4n | |
2601 | Mount the specified filesystem. | |
2602 | .RE | |
2603 | ||
2604 | .RE | |
2605 | ||
2606 | .sp | |
2607 | .ne 2 | |
058ac9ba BB |
2608 | .na |
2609 | \fB\fBzfs unmount\fR [\fB-f\fR] \fB-a\fR | \fIfilesystem\fR|\fImountpoint\fR\fR | |
2610 | .ad | |
2611 | .sp .6 | |
2612 | .RS 4n | |
2613 | Unmounts currently mounted \fBZFS\fR file systems. Invoked automatically as part of the shutdown process. | |
2614 | .sp | |
2615 | .ne 2 | |
058ac9ba BB |
2616 | .na |
2617 | \fB\fB-f\fR\fR | |
2618 | .ad | |
2619 | .sp .6 | |
2620 | .RS 4n | |
2621 | Forcefully unmount the file system, even if it is currently in use. | |
2622 | .RE | |
2623 | ||
2624 | .sp | |
2625 | .ne 2 | |
058ac9ba BB |
2626 | .na |
2627 | \fB\fB-a\fR\fR | |
2628 | .ad | |
2629 | .sp .6 | |
2630 | .RS 4n | |
291b06c3 | 2631 | Unmount all available \fBZFS\fR file systems. Invoked automatically as part of the shutdown process. |
058ac9ba BB |
2632 | .RE |
2633 | ||
2634 | .sp | |
2635 | .ne 2 | |
058ac9ba | 2636 | .na |
8fd888ba | 2637 | \fIfilesystem\fR|\fImountpoint\fR |
058ac9ba BB |
2638 | .ad |
2639 | .sp .6 | |
2640 | .RS 4n | |
2641 | Unmount the specified filesystem. The command can also be given a path to a \fBZFS\fR file system mount point on the system. | |
2642 | .RE | |
2643 | ||
2644 | .RE | |
2645 | ||
2646 | .sp | |
2647 | .ne 2 | |
058ac9ba | 2648 | .na |
2f71caf2 | 2649 | \fB\fBzfs share\fR [\fBnfs\fR|\fBsmb\fR] \fB-a\fR | \fIfilesystem\fR\fR |
058ac9ba BB |
2650 | .ad |
2651 | .sp .6 | |
2652 | .RS 4n | |
6b4e21c6 | 2653 | Shares available \fBZFS\fR file systems. |
058ac9ba BB |
2654 | .sp |
2655 | .ne 2 | |
058ac9ba BB |
2656 | .na |
2657 | \fB\fB-a\fR\fR | |
2658 | .ad | |
2659 | .sp .6 | |
2660 | .RS 4n | |
2f71caf2 | 2661 | Share all available \fBZFS\fR file systems. Invoked automatically as part of the boot process. Additionally if one of \fBnfs\fR|\fBsmb\fR protocols is specified only share file systems whose \fBsharenfs\fR|\fBsharesmb\fR is set. |
058ac9ba BB |
2662 | .RE |
2663 | ||
2664 | .sp | |
2665 | .ne 2 | |
058ac9ba BB |
2666 | .na |
2667 | \fB\fIfilesystem\fR\fR | |
2668 | .ad | |
2669 | .sp .6 | |
2670 | .RS 4n | |
2671 | Share the specified filesystem according to the \fBsharenfs\fR and \fBsharesmb\fR properties. File systems are shared when the \fBsharenfs\fR or \fBsharesmb\fR property is set. | |
2672 | .RE | |
2673 | ||
2674 | .RE | |
2675 | ||
2676 | .sp | |
2677 | .ne 2 | |
058ac9ba | 2678 | .na |
2f71caf2 | 2679 | \fB\fBzfs unshare\fR [\fBnfs\fR|\fBsmb\fR] \fB-a\fR | \fIfilesystem\fR|\fImountpoint\fR\fR |
058ac9ba BB |
2680 | .ad |
2681 | .sp .6 | |
2682 | .RS 4n | |
2f71caf2 | 2683 | Unshares currently shared \fBZFS\fR file systems. This is invoked automatically as part of the shutdown process. Additionally if one of \fBnfs\fR|\fBsmb\fR is specified unshare only file systems currently shared by that protocol. |
058ac9ba BB |
2684 | .sp |
2685 | .ne 2 | |
058ac9ba BB |
2686 | .na |
2687 | \fB\fB-a\fR\fR | |
2688 | .ad | |
2689 | .sp .6 | |
2690 | .RS 4n | |
6b4e21c6 | 2691 | Unshare all available \fBZFS\fR file systems. Invoked automatically as part of the boot process. |
058ac9ba BB |
2692 | .RE |
2693 | ||
2694 | .sp | |
2695 | .ne 2 | |
058ac9ba BB |
2696 | .na |
2697 | \fB\fIfilesystem\fR|\fImountpoint\fR\fR | |
2698 | .ad | |
2699 | .sp .6 | |
2700 | .RS 4n | |
2701 | Unshare the specified filesystem. The command can also be given a path to a \fBZFS\fR file system shared on the system. | |
2702 | .RE | |
2703 | ||
2704 | .RE | |
2705 | ||
2706 | .sp | |
2707 | .ne 2 | |
058ac9ba | 2708 | .na |
da536844 MA |
2709 | \fB\fBzfs bookmark\fR \fIsnapshot\fR \fIbookmark\fR\fR |
2710 | .ad | |
2711 | .sp .6 | |
2712 | .RS 4n | |
2713 | Creates a bookmark of the given snapshot. Bookmarks mark the point in time | |
2714 | when the snapshot was created, and can be used as the incremental source for | |
2715 | a \fBzfs send\fR command. | |
2716 | .sp | |
2717 | This feature must be enabled to be used. | |
2718 | See \fBzpool-features\fR(5) for details on ZFS feature flags and the | |
2719 | \fBbookmarks\fR feature. | |
2720 | .RE | |
2721 | ||
2722 | ||
2723 | .RE | |
2724 | .sp | |
2725 | .ne 2 | |
2726 | .na | |
2aa34383 | 2727 | \fBzfs send\fR [\fB-DnPpRveLc\fR] [\fB-\fR[\fBiI\fR] \fIsnapshot\fR] \fIsnapshot\fR |
058ac9ba BB |
2728 | .ad |
2729 | .sp .6 | |
2730 | .RS 4n | |
8fd888ba | 2731 | Creates a stream representation of the (second, if \fB-i\fR is specified) \fIsnapshot\fR, which is written to standard output. The output can be redirected to a file or to a pipe (for example, using \fBssh\fR(1) to send it to a different system with \fBzfs receive\fR). By default, a full stream is generated; specifying \fB-i\fR or \fB-I\fR changes this behavior. |
058ac9ba BB |
2732 | .sp |
2733 | .ne 2 | |
058ac9ba BB |
2734 | .na |
2735 | \fB\fB-i\fR \fIsnapshot\fR\fR | |
2736 | .ad | |
2737 | .sp .6 | |
2738 | .RS 4n | |
da536844 | 2739 | Generate an incremental stream from the first \fIsnapshot\fR (the incremental source) to the second \fIsnapshot\fR (the incremental target). The incremental source can be specified as the last component of the snapshot name (the \fB@\fR character and following) and it is assumed to be from the same file system as the incremental target. |
058ac9ba BB |
2740 | .sp |
2741 | If the destination is a clone, the source may be the origin snapshot, which must be fully specified (for example, \fBpool/fs@origin\fR, not just \fB@origin\fR). | |
2742 | .RE | |
2743 | ||
2744 | .sp | |
2745 | .ne 2 | |
058ac9ba BB |
2746 | .na |
2747 | \fB\fB-I\fR \fIsnapshot\fR\fR | |
2748 | .ad | |
2749 | .sp .6 | |
2750 | .RS 4n | |
da536844 | 2751 | Generate a stream package that sends all intermediary snapshots from the first snapshot to the second snapshot. For example, \fB-I @a fs@d\fR is similar to \fB-i @a fs@b; -i @b fs@c; -i @c fs@d\fR. The incremental source may be specified as with the \fB-i\fR option. |
058ac9ba BB |
2752 | .RE |
2753 | ||
e0f86c98 BB |
2754 | .sp |
2755 | .ne 2 | |
e0f86c98 | 2756 | .na |
9566fb1a | 2757 | \fB\fB-R\fR\fR |
e0f86c98 BB |
2758 | .ad |
2759 | .sp .6 | |
2760 | .RS 4n | |
9566fb1a SB |
2761 | Generate a replication stream package, which will replicate the specified filesystem, and all descendent file systems, up to the named snapshot. When received, all properties, snapshots, descendent file systems, and clones are preserved. |
2762 | .sp | |
6b4e21c6 | 2763 | If the \fB-i\fR or \fB-I\fR flags are used in conjunction with the \fB-R\fR flag, an incremental replication stream is generated. The current values of properties, and current snapshot and file system names are set when the stream is received. If the \fB-F\fR flag is specified when this stream is received, snapshots and file systems that do not exist on the sending side are destroyed. |
e0f86c98 BB |
2764 | .RE |
2765 | ||
058ac9ba BB |
2766 | .sp |
2767 | .ne 2 | |
058ac9ba | 2768 | .na |
9566fb1a | 2769 | \fB\fB-D\fR\fR |
058ac9ba BB |
2770 | .ad |
2771 | .sp .6 | |
2772 | .RS 4n | |
33c08194 | 2773 | Generate a deduplicated stream. Blocks which would have been sent multiple times in the send stream will only be sent once. The receiving system must also support this feature to receive a deduplicated stream. This flag can be used regardless of the dataset's dedup property, but performance will be much better if the filesystem uses a dedup-capable checksum (eg. sha256). |
058ac9ba BB |
2774 | .RE |
2775 | ||
f1512ee6 MA |
2776 | .sp |
2777 | .ne 2 | |
f1512ee6 MA |
2778 | .na |
2779 | \fB\fB-L\fR\fR | |
2780 | .ad | |
2781 | .sp .6 | |
2782 | .RS 4n | |
7e0754c6 | 2783 | Generate a stream which may contain blocks larger than 128KiB. This flag |
f1512ee6 MA |
2784 | has no effect if the \fBlarge_blocks\fR pool feature is disabled, or if |
2785 | the \fRrecordsize\fR property of this filesystem has never been set above | |
7e0754c6 | 2786 | 128KiB. The receiving system must have the \fBlarge_blocks\fR pool feature |
f1512ee6 MA |
2787 | enabled as well. See \fBzpool-features\fR(5) for details on ZFS feature |
2788 | flags and the \fBlarge_blocks\fR feature. | |
2789 | .RE | |
2790 | ||
058ac9ba BB |
2791 | .sp |
2792 | .ne 2 | |
058ac9ba | 2793 | .na |
9b67f605 MA |
2794 | \fB\fB-e\fR\fR |
2795 | .ad | |
2796 | .sp .6 | |
2797 | .RS 4n | |
2798 | Generate a more compact stream by using WRITE_EMBEDDED records for blocks | |
2799 | which are stored more compactly on disk by the \fBembedded_data\fR pool | |
2800 | feature. This flag has no effect if the \fBembedded_data\fR feature is | |
2801 | disabled. The receiving system must have the \fBembedded_data\fR feature | |
2802 | enabled. If the \fBlz4_compress\fR feature is active on the sending system, | |
2803 | then the receiving system must have that feature enabled as well. See | |
2804 | \fBzpool-features\fR(5) for details on ZFS feature flags and the | |
2805 | \fBembedded_data\fR feature. | |
2806 | .RE | |
2807 | ||
2aa34383 DK |
2808 | .sp |
2809 | .ne 2 | |
2810 | .na | |
2811 | \fB\fB-c\fR, \fB--compressed\fR\fR | |
2812 | .ad | |
2813 | .sp .6 | |
2814 | .RS 4n | |
2815 | Generate a more compact stream by using compressed WRITE records for blocks | |
2816 | which are compressed on disk and in memory (see the \fBcompression\fR property | |
2817 | for details). If the \fBlz4_compress\fR feature is active on the sending | |
2818 | system, then the receiving system must have that feature enabled as well. If | |
2819 | the \fBlarge_blocks\fR feature is enabled on the sending system but the \fB-L\fR | |
2820 | option is not supplied in conjunction with \fB-c\fR, then the data will be | |
2821 | decompressed before sending so it can be split into smaller block sizes. | |
2822 | .RE | |
2823 | ||
9b67f605 MA |
2824 | .sp |
2825 | .ne 2 | |
2826 | .na | |
9566fb1a SB |
2827 | \fB\fB-p\fR\fR |
2828 | .ad | |
2829 | .sp .6 | |
2830 | .RS 4n | |
2831 | Include the dataset's properties in the stream. This flag is implicit when -R is specified. The receiving system must also support this feature. | |
2832 | .RE | |
2833 | ||
2834 | .sp | |
2835 | .ne 2 | |
2836 | .na | |
2837 | \fB\fB-n\fR\fR | |
058ac9ba BB |
2838 | .ad |
2839 | .sp .6 | |
2840 | .RS 4n | |
9566fb1a SB |
2841 | Do a dry-run ("No-op") send. Do not generate any actual send data. This is |
2842 | useful in conjunction with the \fB-v\fR or \fB-P\fR flags to determine what | |
93f6d7e2 MJ |
2843 | data will be sent. In this case, the verbose output will be written to |
2844 | standard output (contrast with a non-dry-run, where the stream is written | |
2845 | to standard output and the verbose output goes to standard error). | |
9566fb1a SB |
2846 | .RE |
2847 | ||
e0f86c98 | 2848 | .sp |
9566fb1a SB |
2849 | .ne 2 |
2850 | .na | |
2851 | \fB\fB-P\fR\fR | |
2852 | .ad | |
2853 | .sp .6 | |
2854 | .RS 4n | |
2855 | Print machine-parsable verbose information about the stream package generated. | |
e0f86c98 BB |
2856 | .RE |
2857 | ||
2858 | .sp | |
2859 | .ne 2 | |
e0f86c98 | 2860 | .na |
9566fb1a | 2861 | \fB\fB-v\fR\fR |
e0f86c98 BB |
2862 | .ad |
2863 | .sp .6 | |
2864 | .RS 4n | |
9566fb1a SB |
2865 | Print verbose information about the stream package generated. This information |
2866 | includes a per-second report of how much data has been sent. | |
058ac9ba BB |
2867 | .RE |
2868 | ||
2869 | The format of the stream is committed. You will be able to receive your streams on future versions of \fBZFS\fR. | |
2870 | .RE | |
2871 | ||
da536844 MA |
2872 | .RE |
2873 | .sp | |
2874 | .ne 2 | |
2875 | .na | |
2aa34383 | 2876 | \fBzfs send\fR [\fB-Lec\fR] [\fB-i\fR \fIsnapshot\fR|\fIbookmark\fR] \fIfilesystem\fR|\fIvolume\fR|\fIsnapshot\fR |
da536844 MA |
2877 | .ad |
2878 | .sp .6 | |
2879 | .RS 4n | |
2880 | Generate a send stream, which may be of a filesystem, and may be | |
2881 | incremental from a bookmark. If the destination is a filesystem or volume, | |
2882 | the pool must be read-only, or the filesystem must not be mounted. When the | |
2883 | stream generated from a filesystem or volume is received, the default snapshot | |
2884 | name will be "--head--". | |
2885 | ||
f1512ee6 MA |
2886 | .sp |
2887 | .ne 2 | |
f1512ee6 MA |
2888 | .na |
2889 | \fB\fB-L\fR\fR | |
2890 | .ad | |
2891 | .sp .6 | |
2892 | .RS 4n | |
7e0754c6 | 2893 | Generate a stream which may contain blocks larger than 128KiB. This flag |
f1512ee6 MA |
2894 | has no effect if the \fBlarge_blocks\fR pool feature is disabled, or if |
2895 | the \fRrecordsize\fR property of this filesystem has never been set above | |
7e0754c6 | 2896 | 128KiB. The receiving system must have the \fBlarge_blocks\fR pool feature |
f1512ee6 MA |
2897 | enabled as well. See \fBzpool-features\fR(5) for details on ZFS feature |
2898 | flags and the \fBlarge_blocks\fR feature. | |
2899 | .RE | |
2900 | ||
b1a3e932 TF |
2901 | .sp |
2902 | .ne 2 | |
b1a3e932 TF |
2903 | .na |
2904 | \fB\fB-e\fR\fR | |
2905 | .ad | |
2906 | .sp .6 | |
2907 | .RS 4n | |
2908 | Generate a more compact stream by using WRITE_EMBEDDED records for blocks | |
2909 | which are stored more compactly on disk by the \fBembedded_data\fR pool | |
2910 | feature. This flag has no effect if the \fBembedded_data\fR feature is | |
2911 | disabled. The receiving system must have the \fBembedded_data\fR feature | |
2912 | enabled. If the \fBlz4_compress\fR feature is active on the sending system, | |
2913 | then the receiving system must have that feature enabled as well. See | |
2914 | \fBzpool-features\fR(5) for details on ZFS feature flags and the | |
2915 | \fBembedded_data\fR feature. | |
2916 | .RE | |
2917 | ||
2aa34383 DK |
2918 | .sp |
2919 | .ne 2 | |
2920 | .na | |
2921 | \fB\fB-c\fR, \fB--compressed\fR\fR | |
2922 | .ad | |
2923 | .sp .6 | |
2924 | .RS 4n | |
2925 | Generate a more compact stream by using compressed WRITE records for blocks | |
2926 | which are compressed on disk and in memory (see the \fBcompression\fR property | |
2927 | for details). If the \fBlz4_compress\fR feature is active on the sending | |
2928 | system, then the receiving system must have that feature enabled as well. If | |
2929 | the \fBlarge_blocks\fR feature is enabled on the sending system but the \fB-L\fR | |
2930 | option is not supplied in conjunction with \fB-c\fR, then the data will be | |
2931 | decompressed before sending so it can be split into smaller block sizes. | |
2932 | .RE | |
2933 | ||
47dfff3b MA |
2934 | .sp |
2935 | .ne 2 | |
2936 | .na | |
2937 | \fB-i\fR \fIsnapshot\fR|\fIbookmark\fR | |
2938 | .ad | |
2939 | .sp .6 | |
2940 | .RS 4n | |
2941 | Generate an incremental send stream. The incremental source must be an earlier snapshot in the destination's history. It will commonly be an earlier snapshot in the destination's filesystem, in which case it can be specified as the last component of the name (the \fB#\fR or \fB@\fR character and following). | |
2942 | .sp | |
2943 | If the incremental target is a clone, the incremental source can be the origin snapshot, or an earlier snapshot in the origin's filesystem, or the origin's origin, etc. | |
2944 | .RE | |
2945 | ||
2946 | .RE | |
2947 | .sp | |
2948 | .ne 2 | |
2949 | .na | |
2950 | \fB\fBzfs send\fR [\fB-Penv\fR] \fB-t\fR \fIreceive_resume_token\fR\fR | |
2951 | .ad | |
2952 | .sp .6 | |
2953 | .RS 4n | |
2954 | Creates a send stream which resumes an interrupted receive. The \fIreceive_resume_token\fR is the value of this property on the filesystem or volume that was being received into. See the documentation for \fBzfs receive -s\fR for more details. | |
2955 | ||
2956 | .RE | |
2957 | ||
da536844 | 2958 | .RE |
058ac9ba BB |
2959 | .sp |
2960 | .ne 2 | |
058ac9ba | 2961 | .na |
47dfff3b | 2962 | \fB\fBzfs receive\fR [\fB-Fnsuv\fR] [\fB-o origin\fR=\fIsnapshot\fR] \fIfilesystem\fR|\fIvolume\fR|\fIsnapshot\fR\fR |
058ac9ba BB |
2963 | .ad |
2964 | .br | |
2965 | .na | |
47dfff3b | 2966 | \fB\fBzfs receive\fR [\fB-Fnsuv\fR] [\fB-d\fR|\fB-e\fR] [\fB-o origin\fR=\fIsnapshot\fR] \fIfilesystem\fR\fR |
058ac9ba BB |
2967 | .ad |
2968 | .sp .6 | |
2969 | .RS 4n | |
2970 | Creates a snapshot whose contents are as specified in the stream provided on standard input. If a full stream is received, then a new file system is created as well. Streams are created using the \fBzfs send\fR subcommand, which by default creates a full stream. \fBzfs recv\fR can be used as an alias for \fBzfs receive\fR. | |
2971 | .sp | |
2972 | If an incremental stream is received, then the destination file system must already exist, and its most recent snapshot must match the incremental stream's source. For \fBzvols\fR, the destination device link is destroyed and recreated, which means the \fBzvol\fR cannot be accessed during the \fBreceive\fR operation. | |
2973 | .sp | |
9bb3e153 | 2974 | When a snapshot replication package stream that is generated by using the \fBzfs send\fR \fB-R\fR command is received, any snapshots that do not exist on the sending location are destroyed by using the \fBzfs destroy\fR \fB-d\fR command. |
058ac9ba | 2975 | .sp |
bb8b81ec | 2976 | The name of the snapshot (and file system, if a full stream is received) that this subcommand creates depends on the argument type and the use of the \fB-d\fR or \fB-e\fR options. |
058ac9ba | 2977 | .sp |
bb8b81ec BB |
2978 | If the argument is a snapshot name, the specified \fIsnapshot\fR is created. If the argument is a file system or volume name, a snapshot with the same name as the sent snapshot is created within the specified \fIfilesystem\fR or \fIvolume\fR. If neither of the \fB-d\fR or \fB-e\fR options are specified, the provided target snapshot name is used exactly as provided. |
2979 | .sp | |
2980 | The \fB-d\fR and \fB-e\fR options cause the file system name of the target snapshot to be determined by appending a portion of the sent snapshot's name to the specified target \fIfilesystem\fR. If the \fB-d\fR option is specified, all but the first element of the sent snapshot's file system path (usually the pool name) is used and any required intermediate file systems within the specified one are created. If the \fB-e\fR option is specified, then only the last element of the sent snapshot's file system name (i.e. the name of the source file system itself) is used as the target file system name. | |
058ac9ba BB |
2981 | .sp |
2982 | .ne 2 | |
058ac9ba | 2983 | .na |
47dfff3b | 2984 | \fB\fB-F\fR\fR |
058ac9ba BB |
2985 | .ad |
2986 | .sp .6 | |
2987 | .RS 4n | |
47dfff3b | 2988 | Force a rollback of the file system to the most recent snapshot before performing the receive operation. If receiving an incremental replication stream (for example, one generated by \fBzfs send -R -[iI]\fR), destroy snapshots and file systems that do not exist on the sending side. |
bb8b81ec BB |
2989 | .RE |
2990 | ||
2991 | .sp | |
2992 | .ne 2 | |
47dfff3b | 2993 | .mk |
bb8b81ec | 2994 | .na |
47dfff3b | 2995 | \fB\fB-n\fR\fR |
bb8b81ec BB |
2996 | .ad |
2997 | .sp .6 | |
2998 | .RS 4n | |
47dfff3b MA |
2999 | Do not actually receive the stream. This can be useful in conjunction with the \fB-v\fR option to verify the name the receive operation would use. |
3000 | .RE | |
3001 | ||
3002 | .sp | |
3003 | .ne 2 | |
3004 | .na | |
3005 | \fB\fB-s\fR\fR | |
3006 | .ad | |
3007 | .sp .6 | |
3008 | .RS 4n | |
3009 | If the receive is interrupted, save the partially received state, rather than deleting it. Interruption may be due to premature termination of the stream (e.g. due to network failure or failure of the remote system if the stream is being read over a network connection), a checksum error in the stream, termination of the \fBzfs receive\fR process, or unclean shutdown of the system. | |
3010 | .sp | |
3011 | The receive can be resumed with a stream generated by \fBzfs send -t\fR token, where the \fItoken\fR is the value of the \fBreceive_resume_token\fR property of the filesystem or volume which is received into. | |
3012 | .sp | |
3013 | To use this flag, the storage pool must have the \fBextensible_dataset\fR feature enabled. See \fBzpool-features\fR(5) for details on ZFS feature flags. | |
058ac9ba BB |
3014 | .RE |
3015 | ||
3016 | .sp | |
3017 | .ne 2 | |
058ac9ba BB |
3018 | .na |
3019 | \fB\fB-u\fR\fR | |
3020 | .ad | |
3021 | .sp .6 | |
3022 | .RS 4n | |
8fd888ba | 3023 | Do not mount the file system that is associated with the received stream. |
058ac9ba BB |
3024 | .RE |
3025 | ||
330d06f9 MA |
3026 | .sp |
3027 | .ne 2 | |
3028 | .na | |
058ac9ba BB |
3029 | \fB\fB-v\fR\fR |
3030 | .ad | |
3031 | .sp .6 | |
3032 | .RS 4n | |
3033 | Print verbose information about the stream and the time required to perform the receive operation. | |
3034 | .RE | |
3035 | ||
3036 | .sp | |
3037 | .ne 2 | |
058ac9ba | 3038 | .na |
47dfff3b | 3039 | \fB\fB-d\fR\fR |
058ac9ba BB |
3040 | .ad |
3041 | .sp .6 | |
3042 | .RS 4n | |
47dfff3b MA |
3043 | Discard the first element of the sent snapshot's file system name, using the remaining elements to determine the name of the target file system for the new snapshot as described in the paragraph above. |
3044 | .RE | |
3045 | ||
3046 | .sp | |
3047 | .ne 2 | |
3048 | .na | |
3049 | \fB\fB-e\fR\fR | |
3050 | .ad | |
3051 | .sp .6 | |
3052 | .RS 4n | |
3053 | Discard all but the last element of the sent snapshot's file system name, using that element to determine the name of the target file system for the new snapshot as described in the paragraph above. | |
058ac9ba BB |
3054 | .RE |
3055 | ||
fcff0f35 PD |
3056 | .sp |
3057 | .ne 2 | |
fcff0f35 PD |
3058 | .na |
3059 | \fB\fB-o\fR \fBorigin\fR=\fIsnapshot\fR | |
3060 | .ad | |
3061 | .sp .6 | |
3062 | .RS 4n | |
e6d3a843 PD |
3063 | Forces the stream to be received as a clone of the given snapshot. |
3064 | If the stream is a full send stream, this will create the filesystem | |
3065 | described by the stream as a clone of the specified snapshot. Which | |
3066 | snapshot was specified will not affect the success or failure of the | |
3067 | receive, as long as the snapshot does exist. If the stream is an | |
3068 | incremental send stream, all the normal verification will be performed. | |
fcff0f35 PD |
3069 | .RE |
3070 | ||
47dfff3b MA |
3071 | .RE |
3072 | ||
058ac9ba BB |
3073 | .sp |
3074 | .ne 2 | |
058ac9ba | 3075 | .na |
47dfff3b | 3076 | \fB\fBzfs receive\fR [\fB-A\fR] \fIfilesystem\fR|\fIvolume\fR |
058ac9ba BB |
3077 | .ad |
3078 | .sp .6 | |
3079 | .RS 4n | |
47dfff3b | 3080 | Abort an interrupted \fBzfs receive \fB-s\fR\fR, deleting its saved partially received state. |
058ac9ba | 3081 | |
614e598c D |
3082 | .RE |
3083 | ||
058ac9ba BB |
3084 | .sp |
3085 | .ne 2 | |
058ac9ba BB |
3086 | .na |
3087 | \fB\fBzfs allow\fR \fIfilesystem\fR | \fIvolume\fR\fR | |
3088 | .ad | |
3089 | .sp .6 | |
3090 | .RS 4n | |
3091 | Displays permissions that have been delegated on the specified filesystem or volume. See the other forms of \fBzfs allow\fR for more information. | |
f74b821a BB |
3092 | .sp |
3093 | Delegations are supported under Linux with the exception of \fBmount\fR, | |
3094 | \fBunmount\fR, \fBmountpoint\fR, \fBcanmount\fR, \fBrename\fR, and \fBshare\fR. | |
3095 | These permissions cannot be delegated because the Linux \fBmount(8)\fR command | |
3096 | restricts modifications of the global namespace to the root user. | |
058ac9ba BB |
3097 | .RE |
3098 | ||
3099 | .sp | |
3100 | .ne 2 | |
058ac9ba BB |
3101 | .na |
3102 | \fB\fBzfs allow\fR [\fB-ldug\fR] "\fIeveryone\fR"|\fIuser\fR|\fIgroup\fR[,...] \fIperm\fR|@\fIsetname\fR[,...] \fIfilesystem\fR| \fIvolume\fR\fR | |
3103 | .ad | |
3104 | .br | |
3105 | .na | |
3106 | \fB\fBzfs allow\fR [\fB-ld\fR] \fB-e\fR \fIperm\fR|@\fIsetname\fR[,...] \fIfilesystem\fR | \fIvolume\fR\fR | |
3107 | .ad | |
3108 | .sp .6 | |
3109 | .RS 4n | |
3110 | Delegates \fBZFS\fR administration permission for the file systems to non-privileged users. | |
3111 | .sp | |
3112 | .ne 2 | |
058ac9ba BB |
3113 | .na |
3114 | \fB[\fB-ug\fR] "\fIeveryone\fR"|\fIuser\fR|\fIgroup\fR[,...]\fR | |
3115 | .ad | |
3116 | .sp .6 | |
3117 | .RS 4n | |
3118 | Specifies to whom the permissions are delegated. Multiple entities can be specified as a comma-separated list. If neither of the \fB-ug\fR options are specified, then the argument is interpreted preferentially as the keyword "everyone", then as a user name, and lastly as a group name. To specify a user or group named "everyone", use the \fB-u\fR or \fB-g\fR options. To specify a group with the same name as a user, use the \fB-g\fR options. | |
3119 | .RE | |
3120 | ||
3121 | .sp | |
3122 | .ne 2 | |
058ac9ba BB |
3123 | .na |
3124 | \fB[\fB-e\fR] \fIperm\fR|@\fIsetname\fR[,...]\fR | |
3125 | .ad | |
3126 | .sp .6 | |
3127 | .RS 4n | |
3128 | Specifies that the permissions be delegated to "everyone." Multiple permissions may be specified as a comma-separated list. Permission names are the same as \fBZFS\fR subcommand and property names. See the property list below. Property set names, which begin with an at sign (\fB@\fR) , may be specified. See the \fB-s\fR form below for details. | |
3129 | .RE | |
3130 | ||
3131 | .sp | |
3132 | .ne 2 | |
058ac9ba BB |
3133 | .na |
3134 | \fB[\fB-ld\fR] \fIfilesystem\fR|\fIvolume\fR\fR | |
3135 | .ad | |
3136 | .sp .6 | |
3137 | .RS 4n | |
3138 | Specifies where the permissions are delegated. If neither of the \fB-ld\fR options are specified, or both are, then the permissions are allowed for the file system or volume, and all of its descendents. If only the \fB-l\fR option is used, then is allowed "locally" only for the specified file system. If only the \fB-d\fR option is used, then is allowed only for the descendent file systems. | |
3139 | .RE | |
3140 | ||
3141 | .RE | |
3142 | ||
3143 | .sp | |
3144 | .LP | |
8fd888ba | 3145 | Permissions are generally the ability to use a \fBzfs\fR subcommand or change a property. The following permissions are available: |
058ac9ba BB |
3146 | .sp |
3147 | .in +2 | |
3148 | .nf | |
3149 | NAME TYPE NOTES | |
3150 | allow subcommand Must also have the permission that is being | |
3151 | allowed | |
3152 | clone subcommand Must also have the 'create' ability and 'mount' | |
3153 | ability in the origin file system | |
3154 | create subcommand Must also have the 'mount' ability | |
3155 | destroy subcommand Must also have the 'mount' ability | |
0677cb6f RL |
3156 | diff subcommand Allows lookup of paths within a dataset |
3157 | given an object number, and the ability to | |
3158 | create snapshots necessary to 'zfs diff'. | |
058ac9ba BB |
3159 | mount subcommand Allows mount/umount of ZFS datasets |
3160 | promote subcommand Must also have the 'mount' | |
3161 | and 'promote' ability in the origin file system | |
3162 | receive subcommand Must also have the 'mount' and 'create' ability | |
3163 | rename subcommand Must also have the 'mount' and 'create' | |
3164 | ability in the new parent | |
3165 | rollback subcommand Must also have the 'mount' ability | |
6b4e21c6 | 3166 | send subcommand |
058ac9ba BB |
3167 | share subcommand Allows sharing file systems over NFS or SMB |
3168 | protocols | |
3169 | snapshot subcommand Must also have the 'mount' ability | |
1de321e6 | 3170 | groupobjquota other Allows accessing any groupobjquota@... property |
058ac9ba | 3171 | groupquota other Allows accessing any groupquota@... property |
1de321e6 | 3172 | groupobjused other Allows reading any groupobjused@... property |
058ac9ba BB |
3173 | groupused other Allows reading any groupused@... property |
3174 | userprop other Allows changing any user property | |
1de321e6 | 3175 | userobjquota other Allows accessing any userobjquota@... property |
058ac9ba | 3176 | userquota other Allows accessing any userquota@... property |
1de321e6 | 3177 | userobjused other Allows reading any userobjused@... property |
058ac9ba BB |
3178 | userused other Allows reading any userused@... property |
3179 | ||
023699cd | 3180 | acltype property |
6b4e21c6 NB |
3181 | aclinherit property |
3182 | atime property | |
3183 | canmount property | |
3184 | casesensitivity property | |
3185 | checksum property | |
3186 | compression property | |
3187 | copies property | |
c8f25918 | 3188 | dedup property |
6b4e21c6 NB |
3189 | devices property |
3190 | exec property | |
788eb90c | 3191 | filesystem_limit property |
c8f25918 KA |
3192 | logbias property |
3193 | mlslabel property | |
6b4e21c6 NB |
3194 | mountpoint property |
3195 | nbmand property | |
3196 | normalization property | |
3197 | primarycache property | |
3198 | quota property | |
3199 | readonly property | |
3200 | recordsize property | |
3201 | refquota property | |
3202 | refreservation property | |
3203 | reservation property | |
3204 | secondarycache property | |
3205 | setuid property | |
3206 | sharenfs property | |
3207 | sharesmb property | |
3208 | snapdir property | |
788eb90c | 3209 | snapshot_limit property |
6b4e21c6 NB |
3210 | utf8only property |
3211 | version property | |
3212 | volblocksize property | |
3213 | volsize property | |
3214 | vscan property | |
3215 | xattr property | |
3216 | zoned property | |
058ac9ba BB |
3217 | .fi |
3218 | .in -2 | |
3219 | .sp | |
3220 | ||
3221 | .sp | |
3222 | .ne 2 | |
058ac9ba BB |
3223 | .na |
3224 | \fB\fBzfs allow\fR \fB-c\fR \fIperm\fR|@\fIsetname\fR[,...] \fIfilesystem\fR|\fIvolume\fR\fR | |
3225 | .ad | |
3226 | .sp .6 | |
3227 | .RS 4n | |
3228 | Sets "create time" permissions. These permissions are granted (locally) to the creator of any newly-created descendent file system. | |
3229 | .RE | |
3230 | ||
3231 | .sp | |
3232 | .ne 2 | |
058ac9ba BB |
3233 | .na |
3234 | \fB\fBzfs allow\fR \fB-s\fR @\fIsetname\fR \fIperm\fR|@\fIsetname\fR[,...] \fIfilesystem\fR|\fIvolume\fR\fR | |
3235 | .ad | |
3236 | .sp .6 | |
3237 | .RS 4n | |
3238 | Defines or adds permissions to a permission set. The set can be used by other \fBzfs allow\fR commands for the specified file system and its descendents. Sets are evaluated dynamically, so changes to a set are immediately reflected. Permission sets follow the same naming restrictions as ZFS file systems, but the name must begin with an "at sign" (\fB@\fR), and can be no more than 64 characters long. | |
3239 | .RE | |
3240 | ||
3241 | .sp | |
3242 | .ne 2 | |
058ac9ba BB |
3243 | .na |
3244 | \fB\fBzfs unallow\fR [\fB-rldug\fR] "\fIeveryone\fR"|\fIuser\fR|\fIgroup\fR[,...] [\fIperm\fR|@\fIsetname\fR[, ...]] \fIfilesystem\fR|\fIvolume\fR\fR | |
3245 | .ad | |
3246 | .br | |
3247 | .na | |
3248 | \fB\fBzfs unallow\fR [\fB-rld\fR] \fB-e\fR [\fIperm\fR|@\fIsetname\fR [,...]] \fIfilesystem\fR|\fIvolume\fR\fR | |
3249 | .ad | |
3250 | .br | |
3251 | .na | |
8fd888ba | 3252 | \fB\fBzfs unallow\fR [\fB-r\fR] \fB-c\fR [\fIperm\fR|@\fIsetname\fR[,...]]\fR \fB\fIfilesystem\fR|\fIvolume\fR\fR |
058ac9ba BB |
3253 | .ad |
3254 | .sp .6 | |
3255 | .RS 4n | |
3256 | Removes permissions that were granted with the \fBzfs allow\fR command. No permissions are explicitly denied, so other permissions granted are still in effect. For example, if the permission is granted by an ancestor. If no permissions are specified, then all permissions for the specified \fIuser\fR, \fIgroup\fR, or \fIeveryone\fR are removed. Specifying "everyone" (or using the \fB-e\fR option) only removes the permissions that were granted to "everyone", not all permissions for every user and group. See the \fBzfs allow\fR command for a description of the \fB-ldugec\fR options. | |
3257 | .sp | |
3258 | .ne 2 | |
058ac9ba BB |
3259 | .na |
3260 | \fB\fB-r\fR\fR | |
3261 | .ad | |
3262 | .sp .6 | |
3263 | .RS 4n | |
3264 | Recursively remove the permissions from this file system and all descendents. | |
3265 | .RE | |
3266 | ||
3267 | .RE | |
3268 | ||
3269 | .sp | |
3270 | .ne 2 | |
058ac9ba | 3271 | .na |
8fd888ba | 3272 | \fB\fBzfs unallow\fR [\fB-r\fR] \fB-s\fR @\fIsetname\fR [\fIperm\fR|@\fIsetname\fR[,...]]\fR \fB\fIfilesystem\fR|\fIvolume\fR\fR |
058ac9ba BB |
3273 | .ad |
3274 | .sp .6 | |
3275 | .RS 4n | |
3276 | Removes permissions from a permission set. If no permissions are specified, then all permissions are removed, thus removing the set entirely. | |
3277 | .RE | |
3278 | ||
3279 | .sp | |
3280 | .ne 2 | |
058ac9ba BB |
3281 | .na |
3282 | \fB\fBzfs hold\fR [\fB-r\fR] \fItag\fR \fIsnapshot\fR...\fR | |
3283 | .ad | |
3284 | .sp .6 | |
3285 | .RS 4n | |
3286 | Adds a single reference, named with the \fItag\fR argument, to the specified snapshot or snapshots. Each snapshot has its own tag namespace, and tags must be unique within that space. | |
3287 | .sp | |
3288 | If a hold exists on a snapshot, attempts to destroy that snapshot by using the \fBzfs destroy\fR command return \fBEBUSY\fR. | |
3289 | .sp | |
3290 | .ne 2 | |
058ac9ba BB |
3291 | .na |
3292 | \fB\fB-r\fR\fR | |
3293 | .ad | |
3294 | .sp .6 | |
3295 | .RS 4n | |
3296 | Specifies that a hold with the given tag is applied recursively to the snapshots of all descendent file systems. | |
3297 | .RE | |
3298 | ||
3299 | .RE | |
3300 | ||
3301 | .sp | |
3302 | .ne 2 | |
058ac9ba BB |
3303 | .na |
3304 | \fB\fBzfs holds\fR [\fB-r\fR] \fIsnapshot\fR...\fR | |
3305 | .ad | |
3306 | .sp .6 | |
3307 | .RS 4n | |
3308 | Lists all existing user references for the given snapshot or snapshots. | |
3309 | .sp | |
3310 | .ne 2 | |
058ac9ba BB |
3311 | .na |
3312 | \fB\fB-r\fR\fR | |
3313 | .ad | |
3314 | .sp .6 | |
3315 | .RS 4n | |
3316 | Lists the holds that are set on the named descendent snapshots, in addition to listing the holds on the named snapshot. | |
3317 | .RE | |
3318 | ||
3319 | .RE | |
3320 | ||
3321 | .sp | |
3322 | .ne 2 | |
058ac9ba BB |
3323 | .na |
3324 | \fB\fBzfs release\fR [\fB-r\fR] \fItag\fR \fIsnapshot\fR...\fR | |
3325 | .ad | |
3326 | .sp .6 | |
3327 | .RS 4n | |
3328 | Removes a single reference, named with the \fItag\fR argument, from the specified snapshot or snapshots. The tag must already exist for each snapshot. | |
3329 | .sp | |
058ac9ba | 3330 | .ne 2 |
058ac9ba BB |
3331 | .na |
3332 | \fB\fB-r\fR\fR | |
3333 | .ad | |
3334 | .sp .6 | |
3335 | .RS 4n | |
3336 | Recursively releases a hold with the given tag on the snapshots of all descendent file systems. | |
3337 | .RE | |
3338 | ||
3339 | .RE | |
3340 | ||
0677cb6f RL |
3341 | .sp |
3342 | .ne 2 | |
0677cb6f RL |
3343 | .na |
3344 | \fB\fBzfs diff\fR [\fB-FHt\fR] \fIsnapshot\fR \fIsnapshot|filesystem\fR | |
3345 | .ad | |
3346 | .sp .6 | |
3347 | .RS 4n | |
3348 | Display the difference between a snapshot of a given filesystem and another | |
3349 | snapshot of that filesystem from a later time or the current contents of the | |
3350 | filesystem. The first column is a character indicating the type of change, | |
3351 | the other columns indicate pathname, new pathname (in case of rename), change | |
3352 | in link count, and optionally file type and/or change time. | |
3353 | ||
3354 | The types of change are: | |
3355 | .in +2 | |
3356 | .nf | |
3357 | - The path has been removed | |
3358 | + The path has been created | |
3359 | M The path has been modified | |
3360 | R The path has been renamed | |
3361 | .fi | |
3362 | .in -2 | |
3363 | .sp | |
3364 | .ne 2 | |
3365 | .na | |
3366 | \fB-F\fR | |
3367 | .ad | |
3368 | .sp .6 | |
3369 | .RS 4n | |
3370 | Display an indication of the type of file, in a manner similar to the \fB-F\fR | |
3371 | option of \fBls\fR(1). | |
3372 | .in +2 | |
3373 | .nf | |
3374 | B Block device | |
3375 | C Character device | |
3376 | / Directory | |
3377 | > Door | |
3378 | | Named pipe | |
3379 | @ Symbolic link | |
3380 | P Event port | |
3381 | = Socket | |
3382 | F Regular file | |
3383 | .fi | |
3384 | .in -2 | |
3385 | .RE | |
3386 | .sp | |
3387 | .ne 2 | |
3388 | .na | |
3389 | \fB-H\fR | |
3390 | .ad | |
3391 | .sp .6 | |
3392 | .RS 4n | |
54d5378f | 3393 | Give more parsable tab-separated output, without header lines and without arrows. |
0677cb6f RL |
3394 | .RE |
3395 | .sp | |
3396 | .ne 2 | |
3397 | .na | |
3398 | \fB-t\fR | |
3399 | .ad | |
3400 | .sp .6 | |
3401 | .RS 4n | |
3402 | Display the path's inode change time as the first column of output. | |
3403 | .RE | |
3404 | ||
058ac9ba BB |
3405 | .SH EXAMPLES |
3406 | .LP | |
3407 | \fBExample 1 \fRCreating a ZFS File System Hierarchy | |
3408 | .sp | |
3409 | .LP | |
3410 | The following commands create a file system named \fBpool/home\fR and a file system named \fBpool/home/bob\fR. The mount point \fB/export/home\fR is set for the parent file system, and is automatically inherited by the child file system. | |
3411 | ||
3412 | .sp | |
3413 | .in +2 | |
3414 | .nf | |
3415 | # \fBzfs create pool/home\fR | |
3416 | # \fBzfs set mountpoint=/export/home pool/home\fR | |
3417 | # \fBzfs create pool/home/bob\fR | |
3418 | .fi | |
3419 | .in -2 | |
3420 | .sp | |
3421 | ||
3422 | .LP | |
3423 | \fBExample 2 \fRCreating a ZFS Snapshot | |
3424 | .sp | |
3425 | .LP | |
8fd888ba | 3426 | The following command creates a snapshot named \fBbackup\fR. This snapshot is mounted on demand in the \fB\&.zfs/snapshot\fR directory at the root of the \fBpool/home/bob\fR file system. |
058ac9ba BB |
3427 | |
3428 | .sp | |
3429 | .in +2 | |
3430 | .nf | |
8fd888ba | 3431 | # \fBzfs snapshot pool/home/bob@backup\fR |
058ac9ba BB |
3432 | .fi |
3433 | .in -2 | |
3434 | .sp | |
3435 | ||
3436 | .LP | |
3437 | \fBExample 3 \fRCreating and Destroying Multiple Snapshots | |
3438 | .sp | |
3439 | .LP | |
8fd888ba | 3440 | The following command creates snapshots named \fBbackup\fR of \fBpool/home\fR and all of its descendent file systems. Each snapshot is mounted on demand in the \fB\&.zfs/snapshot\fR directory at the root of its file system. The second command destroys the newly created snapshots. |
058ac9ba BB |
3441 | |
3442 | .sp | |
3443 | .in +2 | |
3444 | .nf | |
8fd888ba RL |
3445 | # \fBzfs snapshot -r pool/home@backup\fR |
3446 | # \fBzfs destroy -r pool/home@backup\fR | |
058ac9ba BB |
3447 | .fi |
3448 | .in -2 | |
3449 | .sp | |
3450 | ||
3451 | .LP | |
3452 | \fBExample 4 \fRDisabling and Enabling File System Compression | |
3453 | .sp | |
3454 | .LP | |
3455 | The following command disables the \fBcompression\fR property for all file systems under \fBpool/home\fR. The next command explicitly enables \fBcompression\fR for \fBpool/home/anne\fR. | |
3456 | ||
3457 | .sp | |
3458 | .in +2 | |
3459 | .nf | |
3460 | # \fBzfs set compression=off pool/home\fR | |
3461 | # \fBzfs set compression=on pool/home/anne\fR | |
3462 | .fi | |
3463 | .in -2 | |
3464 | .sp | |
3465 | ||
3466 | .LP | |
3467 | \fBExample 5 \fRListing ZFS Datasets | |
3468 | .sp | |
3469 | .LP | |
8fd888ba | 3470 | The following command lists all active file systems and volumes in the system. Snapshots are displayed if the pool's \fBlistsnapshots\fR property is \fBon\fR (the default is \fBoff\fR). See \fBzpool\fR(8) for more information on pool properties. |
058ac9ba BB |
3471 | |
3472 | .sp | |
3473 | .in +2 | |
3474 | .nf | |
3475 | # \fBzfs list\fR | |
3476 | NAME USED AVAIL REFER MOUNTPOINT | |
3477 | pool 450K 457G 18K /pool | |
3478 | pool/home 315K 457G 21K /export/home | |
3479 | pool/home/anne 18K 457G 18K /export/home/anne | |
3480 | pool/home/bob 276K 457G 276K /export/home/bob | |
3481 | .fi | |
3482 | .in -2 | |
3483 | .sp | |
3484 | ||
3485 | .LP | |
3486 | \fBExample 6 \fRSetting a Quota on a ZFS File System | |
3487 | .sp | |
3488 | .LP | |
7e0754c6 | 3489 | The following command sets a quota of 50 GiB for \fBpool/home/bob\fR. |
058ac9ba BB |
3490 | |
3491 | .sp | |
3492 | .in +2 | |
3493 | .nf | |
3494 | # \fBzfs set quota=50G pool/home/bob\fR | |
3495 | .fi | |
3496 | .in -2 | |
3497 | .sp | |
3498 | ||
3499 | .LP | |
3500 | \fBExample 7 \fRListing ZFS Properties | |
3501 | .sp | |
3502 | .LP | |
3503 | The following command lists all properties for \fBpool/home/bob\fR. | |
3504 | ||
3505 | .sp | |
3506 | .in +2 | |
3507 | .nf | |
3508 | # \fBzfs get all pool/home/bob\fR | |
3509 | NAME PROPERTY VALUE SOURCE | |
3510 | pool/home/bob type filesystem - | |
3511 | pool/home/bob creation Tue Jul 21 15:53 2009 - | |
3512 | pool/home/bob used 21K - | |
3513 | pool/home/bob available 20.0G - | |
3514 | pool/home/bob referenced 21K - | |
3515 | pool/home/bob compressratio 1.00x - | |
3516 | pool/home/bob mounted yes - | |
3517 | pool/home/bob quota 20G local | |
3518 | pool/home/bob reservation none default | |
3519 | pool/home/bob recordsize 128K default | |
3520 | pool/home/bob mountpoint /pool/home/bob default | |
3521 | pool/home/bob sharenfs off default | |
3522 | pool/home/bob checksum on default | |
3523 | pool/home/bob compression on local | |
3524 | pool/home/bob atime on default | |
3525 | pool/home/bob devices on default | |
3526 | pool/home/bob exec on default | |
3527 | pool/home/bob setuid on default | |
3528 | pool/home/bob readonly off default | |
3529 | pool/home/bob zoned off default | |
3530 | pool/home/bob snapdir hidden default | |
023699cd | 3531 | pool/home/bob acltype off default |
058ac9ba BB |
3532 | pool/home/bob aclinherit restricted default |
3533 | pool/home/bob canmount on default | |
058ac9ba BB |
3534 | pool/home/bob xattr on default |
3535 | pool/home/bob copies 1 default | |
3536 | pool/home/bob version 4 - | |
3537 | pool/home/bob utf8only off - | |
3538 | pool/home/bob normalization none - | |
3539 | pool/home/bob casesensitivity sensitive - | |
3540 | pool/home/bob vscan off default | |
3541 | pool/home/bob nbmand off default | |
3542 | pool/home/bob sharesmb off default | |
3543 | pool/home/bob refquota none default | |
3544 | pool/home/bob refreservation none default | |
3545 | pool/home/bob primarycache all default | |
3546 | pool/home/bob secondarycache all default | |
3547 | pool/home/bob usedbysnapshots 0 - | |
3548 | pool/home/bob usedbydataset 21K - | |
3549 | pool/home/bob usedbychildren 0 - | |
3550 | pool/home/bob usedbyrefreservation 0 - | |
c8f25918 KA |
3551 | pool/home/bob logbias latency default |
3552 | pool/home/bob dedup off default | |
3553 | pool/home/bob mlslabel none default | |
6d111134 | 3554 | pool/home/bob relatime off default |
058ac9ba BB |
3555 | .fi |
3556 | .in -2 | |
3557 | .sp | |
3558 | ||
3559 | .sp | |
3560 | .LP | |
3561 | The following command gets a single property value. | |
3562 | ||
3563 | .sp | |
3564 | .in +2 | |
3565 | .nf | |
3566 | # \fBzfs get -H -o value compression pool/home/bob\fR | |
3567 | on | |
3568 | .fi | |
3569 | .in -2 | |
3570 | .sp | |
3571 | ||
3572 | .sp | |
3573 | .LP | |
3574 | The following command lists all properties with local settings for \fBpool/home/bob\fR. | |
3575 | ||
3576 | .sp | |
3577 | .in +2 | |
3578 | .nf | |
3579 | # \fBzfs get -r -s local -o name,property,value all pool/home/bob\fR | |
3580 | NAME PROPERTY VALUE | |
3581 | pool/home/bob quota 20G | |
3582 | pool/home/bob compression on | |
3583 | .fi | |
3584 | .in -2 | |
3585 | .sp | |
3586 | ||
3587 | .LP | |
3588 | \fBExample 8 \fRRolling Back a ZFS File System | |
3589 | .sp | |
3590 | .LP | |
3591 | The following command reverts the contents of \fBpool/home/anne\fR to the snapshot named \fByesterday\fR, deleting all intermediate snapshots. | |
3592 | ||
3593 | .sp | |
3594 | .in +2 | |
3595 | .nf | |
3596 | # \fBzfs rollback -r pool/home/anne@yesterday\fR | |
3597 | .fi | |
3598 | .in -2 | |
3599 | .sp | |
3600 | ||
3601 | .LP | |
3602 | \fBExample 9 \fRCreating a ZFS Clone | |
3603 | .sp | |
3604 | .LP | |
3605 | The following command creates a writable file system whose initial contents are the same as \fBpool/home/bob@yesterday\fR. | |
3606 | ||
3607 | .sp | |
3608 | .in +2 | |
3609 | .nf | |
3610 | # \fBzfs clone pool/home/bob@yesterday pool/clone\fR | |
3611 | .fi | |
3612 | .in -2 | |
3613 | .sp | |
3614 | ||
3615 | .LP | |
3616 | \fBExample 10 \fRPromoting a ZFS Clone | |
3617 | .sp | |
3618 | .LP | |
3619 | The following commands illustrate how to test out changes to a file system, and then replace the original file system with the changed one, using clones, clone promotion, and renaming: | |
3620 | ||
3621 | .sp | |
3622 | .in +2 | |
3623 | .nf | |
3624 | # \fBzfs create pool/project/production\fR | |
3625 | populate /pool/project/production with data | |
3626 | # \fBzfs snapshot pool/project/production@today\fR | |
3627 | # \fBzfs clone pool/project/production@today pool/project/beta\fR | |
3628 | make changes to /pool/project/beta and test them | |
3629 | # \fBzfs promote pool/project/beta\fR | |
3630 | # \fBzfs rename pool/project/production pool/project/legacy\fR | |
3631 | # \fBzfs rename pool/project/beta pool/project/production\fR | |
3632 | once the legacy version is no longer needed, it can be destroyed | |
3633 | # \fBzfs destroy pool/project/legacy\fR | |
3634 | .fi | |
3635 | .in -2 | |
3636 | .sp | |
3637 | ||
3638 | .LP | |
3639 | \fBExample 11 \fRInheriting ZFS Properties | |
3640 | .sp | |
3641 | .LP | |
3642 | The following command causes \fBpool/home/bob\fR and \fBpool/home/anne\fR to inherit the \fBchecksum\fR property from their parent. | |
3643 | ||
3644 | .sp | |
3645 | .in +2 | |
3646 | .nf | |
3647 | # \fBzfs inherit checksum pool/home/bob pool/home/anne\fR | |
3648 | .fi | |
3649 | .in -2 | |
3650 | .sp | |
0bf8501a PH |
3651 | .LP |
3652 | The following command causes \fBpool/home/bob\fR to revert to the received | |
3653 | value for the \fBquota\fR property if it exists. | |
3654 | ||
3655 | .sp | |
3656 | .in +2 | |
3657 | .nf | |
3658 | # \fBzfs inherit -S quota pool/home/bob | |
3659 | .fi | |
3660 | .in -2 | |
3661 | .sp | |
058ac9ba BB |
3662 | |
3663 | .LP | |
3664 | \fBExample 12 \fRRemotely Replicating ZFS Data | |
3665 | .sp | |
3666 | .LP | |
3667 | The following commands send a full stream and then an incremental stream to a remote machine, restoring them into \fBpoolB/received/fs@a\fRand \fBpoolB/received/fs@b\fR, respectively. \fBpoolB\fR must contain the file system \fBpoolB/received\fR, and must not initially contain \fBpoolB/received/fs\fR. | |
3668 | ||
3669 | .sp | |
3670 | .in +2 | |
3671 | .nf | |
3672 | # \fBzfs send pool/fs@a | \e\fR | |
3673 | \fBssh host zfs receive poolB/received/fs@a\fR | |
3674 | # \fBzfs send -i a pool/fs@b | ssh host \e\fR | |
3675 | \fBzfs receive poolB/received/fs\fR | |
3676 | .fi | |
3677 | .in -2 | |
3678 | .sp | |
3679 | ||
3680 | .LP | |
3681 | \fBExample 13 \fRUsing the \fBzfs receive\fR \fB-d\fR Option | |
3682 | .sp | |
3683 | .LP | |
3684 | The following command sends a full stream of \fBpoolA/fsA/fsB@snap\fR to a remote machine, receiving it into \fBpoolB/received/fsA/fsB@snap\fR. The \fBfsA/fsB@snap\fR portion of the received snapshot's name is determined from the name of the sent snapshot. \fBpoolB\fR must contain the file system \fBpoolB/received\fR. If \fBpoolB/received/fsA\fR does not exist, it is created as an empty file system. | |
3685 | ||
3686 | .sp | |
3687 | .in +2 | |
3688 | .nf | |
3689 | # \fBzfs send poolA/fsA/fsB@snap | \e | |
3690 | ssh host zfs receive -d poolB/received\fR | |
3691 | .fi | |
3692 | .in -2 | |
3693 | .sp | |
3694 | ||
3695 | .LP | |
3696 | \fBExample 14 \fRSetting User Properties | |
3697 | .sp | |
3698 | .LP | |
3699 | The following example sets the user-defined \fBcom.example:department\fR property for a dataset. | |
3700 | ||
3701 | .sp | |
3702 | .in +2 | |
3703 | .nf | |
3704 | # \fBzfs set com.example:department=12345 tank/accounting\fR | |
3705 | .fi | |
3706 | .in -2 | |
3707 | .sp | |
3708 | ||
3709 | .LP | |
b23d5430 | 3710 | \fBExample 15 \fRPerforming a Rolling Snapshot |
058ac9ba BB |
3711 | .sp |
3712 | .LP | |
3713 | The following example shows how to maintain a history of snapshots with a consistent naming scheme. To keep a week's worth of snapshots, the user destroys the oldest snapshot, renames the remaining snapshots, and then creates a new snapshot, as follows: | |
3714 | ||
3715 | .sp | |
3716 | .in +2 | |
3717 | .nf | |
3718 | # \fBzfs destroy -r pool/users@7daysago\fR | |
3719 | # \fBzfs rename -r pool/users@6daysago @7daysago\fR | |
3720 | # \fBzfs rename -r pool/users@5daysago @6daysago\fR | |
b5d8c5fb NG |
3721 | # \fBzfs rename -r pool/users@4daysago @5daysago\fR |
3722 | # \fBzfs rename -r pool/users@3daysago @4daysago\fR | |
3723 | # \fBzfs rename -r pool/users@2daysago @3daysago\fR | |
058ac9ba BB |
3724 | # \fBzfs rename -r pool/users@yesterday @2daysago\fR |
3725 | # \fBzfs rename -r pool/users@today @yesterday\fR | |
3726 | # \fBzfs snapshot -r pool/users@today\fR | |
3727 | .fi | |
3728 | .in -2 | |
3729 | .sp | |
3730 | ||
3731 | .LP | |
b23d5430 | 3732 | \fBExample 16 \fRSetting \fBsharenfs\fR Property Options on a ZFS File System |
058ac9ba BB |
3733 | .sp |
3734 | .LP | |
3735 | The following commands show how to set \fBsharenfs\fR property options to enable \fBrw\fR access for a set of \fBIP\fR addresses and to enable root access for system \fBneo\fR on the \fBtank/home\fR file system. | |
3736 | ||
3737 | .sp | |
3738 | .in +2 | |
3739 | .nf | |
0677cb6f | 3740 | # \fBzfs set sharenfs='rw=@123.123.0.0/16,root=neo' tank/home\fR |
058ac9ba BB |
3741 | .fi |
3742 | .in -2 | |
3743 | .sp | |
3744 | ||
3745 | .sp | |
3746 | .LP | |
3747 | If you are using \fBDNS\fR for host name resolution, specify the fully qualified hostname. | |
3748 | ||
3749 | .LP | |
b23d5430 | 3750 | \fBExample 17 \fRDelegating ZFS Administration Permissions on a ZFS Dataset |
058ac9ba | 3751 | .sp |
058ac9ba BB |
3752 | The following example shows how to set permissions so that user \fBcindys\fR can create, destroy, mount, and take snapshots on \fBtank/cindys\fR. The permissions on \fBtank/cindys\fR are also displayed. |
3753 | ||
3754 | .sp | |
3755 | .in +2 | |
3756 | .nf | |
3757 | # \fBzfs allow cindys create,destroy,mount,snapshot tank/cindys\fR | |
3758 | # \fBzfs allow tank/cindys\fR | |
3759 | ------------------------------------------------------------- | |
3760 | Local+Descendent permissions on (tank/cindys) | |
3761 | user cindys create,destroy,mount,snapshot | |
3762 | ------------------------------------------------------------- | |
3763 | .fi | |
3764 | .in -2 | |
3765 | .sp | |
3766 | ||
3767 | .sp | |
3768 | .LP | |
3769 | Because the \fBtank/cindys\fR mount point permission is set to 755 by default, user \fBcindys\fR will be unable to mount file systems under \fBtank/cindys\fR. Set an \fBACL\fR similar to the following syntax to provide mount point access: | |
3770 | .sp | |
3771 | .in +2 | |
3772 | .nf | |
3773 | # \fBchmod A+user:cindys:add_subdirectory:allow /tank/cindys\fR | |
3774 | .fi | |
3775 | .in -2 | |
3776 | .sp | |
3777 | ||
3778 | .LP | |
b23d5430 | 3779 | \fBExample 18 \fRDelegating Create Time Permissions on a ZFS Dataset |
058ac9ba BB |
3780 | .sp |
3781 | .LP | |
3782 | The following example shows how to grant anyone in the group \fBstaff\fR to create file systems in \fBtank/users\fR. This syntax also allows staff members to destroy their own file systems, but not destroy anyone else's file system. The permissions on \fBtank/users\fR are also displayed. | |
3783 | ||
3784 | .sp | |
3785 | .in +2 | |
3786 | .nf | |
0677cb6f | 3787 | # \fBzfs allow staff create,mount tank/users\fR |
058ac9ba BB |
3788 | # \fBzfs allow -c destroy tank/users\fR |
3789 | # \fBzfs allow tank/users\fR | |
3790 | ------------------------------------------------------------- | |
3791 | Create time permissions on (tank/users) | |
3792 | create,destroy | |
3793 | Local+Descendent permissions on (tank/users) | |
3794 | group staff create,mount | |
6b4e21c6 | 3795 | ------------------------------------------------------------- |
058ac9ba BB |
3796 | .fi |
3797 | .in -2 | |
3798 | .sp | |
3799 | ||
3800 | .LP | |
b23d5430 | 3801 | \fBExample 19 \fRDefining and Granting a Permission Set on a ZFS Dataset |
058ac9ba BB |
3802 | .sp |
3803 | .LP | |
3804 | The following example shows how to define and grant a permission set on the \fBtank/users\fR file system. The permissions on \fBtank/users\fR are also displayed. | |
3805 | ||
3806 | .sp | |
3807 | .in +2 | |
3808 | .nf | |
3809 | # \fBzfs allow -s @pset create,destroy,snapshot,mount tank/users\fR | |
3810 | # \fBzfs allow staff @pset tank/users\fR | |
3811 | # \fBzfs allow tank/users\fR | |
3812 | ------------------------------------------------------------- | |
3813 | Permission sets on (tank/users) | |
3814 | @pset create,destroy,mount,snapshot | |
3815 | Create time permissions on (tank/users) | |
3816 | create,destroy | |
3817 | Local+Descendent permissions on (tank/users) | |
3818 | group staff @pset,create,mount | |
3819 | ------------------------------------------------------------- | |
3820 | .fi | |
3821 | .in -2 | |
3822 | .sp | |
3823 | ||
3824 | .LP | |
b23d5430 | 3825 | \fBExample 20 \fRDelegating Property Permissions on a ZFS Dataset |
058ac9ba BB |
3826 | .sp |
3827 | .LP | |
3828 | The following example shows to grant the ability to set quotas and reservations on the \fBusers/home\fR file system. The permissions on \fBusers/home\fR are also displayed. | |
3829 | ||
3830 | .sp | |
3831 | .in +2 | |
3832 | .nf | |
3833 | # \fBzfs allow cindys quota,reservation users/home\fR | |
3834 | # \fBzfs allow users/home\fR | |
3835 | ------------------------------------------------------------- | |
3836 | Local+Descendent permissions on (users/home) | |
3837 | user cindys quota,reservation | |
3838 | ------------------------------------------------------------- | |
3839 | cindys% \fBzfs set quota=10G users/home/marks\fR | |
3840 | cindys% \fBzfs get quota users/home/marks\fR | |
3841 | NAME PROPERTY VALUE SOURCE | |
6b4e21c6 | 3842 | users/home/marks quota 10G local |
058ac9ba BB |
3843 | .fi |
3844 | .in -2 | |
3845 | .sp | |
3846 | ||
3847 | .LP | |
b23d5430 | 3848 | \fBExample 21 \fRRemoving ZFS Delegated Permissions on a ZFS Dataset |
058ac9ba BB |
3849 | .sp |
3850 | .LP | |
3851 | The following example shows how to remove the snapshot permission from the \fBstaff\fR group on the \fBtank/users\fR file system. The permissions on \fBtank/users\fR are also displayed. | |
3852 | ||
3853 | .sp | |
3854 | .in +2 | |
3855 | .nf | |
3856 | # \fBzfs unallow staff snapshot tank/users\fR | |
3857 | # \fBzfs allow tank/users\fR | |
3858 | ------------------------------------------------------------- | |
3859 | Permission sets on (tank/users) | |
3860 | @pset create,destroy,mount,snapshot | |
3861 | Create time permissions on (tank/users) | |
3862 | create,destroy | |
3863 | Local+Descendent permissions on (tank/users) | |
3864 | group staff @pset,create,mount | |
6b4e21c6 | 3865 | ------------------------------------------------------------- |
058ac9ba BB |
3866 | .fi |
3867 | .in -2 | |
3868 | .sp | |
3869 | ||
0677cb6f | 3870 | .LP |
b23d5430 | 3871 | \fBExample 22\fR Showing the differences between a snapshot and a ZFS Dataset |
0677cb6f RL |
3872 | .sp |
3873 | .LP | |
3874 | The following example shows how to see what has changed between a prior | |
3875 | snapshot of a ZFS Dataset and its current state. The \fB-F\fR option is used | |
3876 | to indicate type information for the files affected. | |
3877 | ||
3878 | .sp | |
3879 | .in +2 | |
3880 | .nf | |
3881 | # zfs diff -F tank/test@before tank/test | |
3882 | M / /tank/test/ | |
3883 | M F /tank/test/linked (+1) | |
3884 | R F /tank/test/oldname -> /tank/test/newname | |
3885 | - F /tank/test/deleted | |
3886 | + F /tank/test/created | |
3887 | M F /tank/test/modified | |
3888 | .fi | |
3889 | .in -2 | |
3890 | .sp | |
3891 | ||
a215ee16 | 3892 | .LP |
b23d5430 | 3893 | \fBExample 23\fR Creating a bookmark |
a215ee16 TF |
3894 | .sp |
3895 | .LP | |
3896 | The following example create a bookmark to a snapshot. This bookmark can then | |
3897 | be used instead of snapshot in send streams. | |
3898 | ||
3899 | .sp | |
3900 | .in +2 | |
3901 | .nf | |
3902 | # zfs bookmark rpool@snapshot rpool#bookmark | |
3903 | .fi | |
3904 | .in -2 | |
3905 | .sp | |
3906 | ||
71bd0645 TF |
3907 | .SH "ENVIRONMENT VARIABLES" |
3908 | .TP | |
3909 | .B "ZFS_ABORT | |
3910 | Cause \fBzfs\fR to dump core on exit for the purposes of running \fB::findleaks\fR. | |
3911 | ||
058ac9ba | 3912 | .SH EXIT STATUS |
058ac9ba BB |
3913 | .LP |
3914 | The following exit values are returned: | |
3915 | .sp | |
3916 | .ne 2 | |
058ac9ba BB |
3917 | .na |
3918 | \fB\fB0\fR\fR | |
3919 | .ad | |
3920 | .sp .6 | |
3921 | .RS 4n | |
6b4e21c6 | 3922 | Successful completion. |
058ac9ba BB |
3923 | .RE |
3924 | ||
3925 | .sp | |
3926 | .ne 2 | |
058ac9ba BB |
3927 | .na |
3928 | \fB\fB1\fR\fR | |
3929 | .ad | |
3930 | .sp .6 | |
3931 | .RS 4n | |
3932 | An error occurred. | |
3933 | .RE | |
3934 | ||
3935 | .sp | |
3936 | .ne 2 | |
058ac9ba BB |
3937 | .na |
3938 | \fB\fB2\fR\fR | |
3939 | .ad | |
3940 | .sp .6 | |
3941 | .RS 4n | |
3942 | Invalid command line options were specified. | |
3943 | .RE | |
3944 | ||
058ac9ba | 3945 | .SH SEE ALSO |
058ac9ba | 3946 | .LP |
83426735 | 3947 | \fBchmod\fR(2), \fBfsync\fR(2), \fBgzip\fR(1), \fBls\fR(1), \fBmount\fR(8), \fBopen\fR(2), \fBreaddir\fR(3), \fBssh\fR(1), \fBstat\fR(2), \fBwrite\fR(2), \fBzpool\fR(8), \fBzfs-module-parameters\fR(5) |
6a107f41 RL |
3948 | .sp |
3949 | On Solaris: \fBdfstab(4)\fR, \fBiscsitadm(1M)\fR, \fBmount(1M)\fR, \fBshare(1M)\fR, \fBsharemgr(1M)\fR, \fBunshare(1M)\fR |