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870fc32f RW |
21 | .\" Copyright (c) 2009 Sun Microsystems, Inc. All Rights Reserved. |
22 | .\" Copyright 2011 Joshua M. Clulow <josh@sysmgr.org> | |
23 | .\" Copyright (c) 2011, 2019 by Delphix. All rights reserved. | |
24 | .\" Copyright (c) 2013 by Saso Kiselkov. All rights reserved. | |
25 | .\" Copyright (c) 2014, Joyent, Inc. All rights reserved. | |
26 | .\" Copyright (c) 2014 by Adam Stevko. All rights reserved. | |
27 | .\" Copyright (c) 2014 Integros [integros.com] | |
28 | .\" Copyright 2019 Richard Laager. All rights reserved. | |
29 | .\" Copyright 2018 Nexenta Systems, Inc. | |
30 | .\" Copyright 2019 Joyent, Inc. | |
31 | .\" | |
4b6e2a5a | 32 | .Dd December 1, 2020 |
870fc32f | 33 | .Dt ZFS-CREATE 8 |
6706552e | 34 | .Os |
f84fe3fc | 35 | . |
870fc32f | 36 | .Sh NAME |
1e36af8c | 37 | .Nm zfs-create |
f84fe3fc | 38 | .Nd create ZFS dataset |
870fc32f RW |
39 | .Sh SYNOPSIS |
40 | .Nm zfs | |
41 | .Cm create | |
4b6e2a5a | 42 | .Op Fl Pnpuv |
f84fe3fc | 43 | .Oo Fl o Ar property Ns = Ns Ar value Oc Ns … |
870fc32f | 44 | .Ar filesystem |
1e36af8c | 45 | .Nm zfs |
870fc32f RW |
46 | .Cm create |
47 | .Op Fl ps | |
48 | .Op Fl b Ar blocksize | |
f84fe3fc | 49 | .Oo Fl o Ar property Ns = Ns Ar value Oc Ns … |
870fc32f | 50 | .Fl V Ar size Ar volume |
f84fe3fc | 51 | . |
870fc32f RW |
52 | .Sh DESCRIPTION |
53 | .Bl -tag -width "" | |
54 | .It Xo | |
1e36af8c | 55 | .Nm zfs |
870fc32f | 56 | .Cm create |
4b6e2a5a | 57 | .Op Fl Pnpuv |
f84fe3fc | 58 | .Oo Fl o Ar property Ns = Ns Ar value Oc Ns … |
870fc32f RW |
59 | .Ar filesystem |
60 | .Xc | |
61 | Creates a new ZFS file system. | |
62 | The file system is automatically mounted according to the | |
63 | .Sy mountpoint | |
4b6e2a5a RM |
64 | property inherited from the parent, unless the |
65 | .Fl u | |
66 | option is used. | |
870fc32f RW |
67 | .Bl -tag -width "-o" |
68 | .It Fl o Ar property Ns = Ns Ar value | |
69 | Sets the specified property as if the command | |
70 | .Nm zfs Cm set Ar property Ns = Ns Ar value | |
71 | was invoked at the same time the dataset was created. | |
72 | Any editable ZFS property can also be set at creation time. | |
73 | Multiple | |
74 | .Fl o | |
75 | options can be specified. | |
76 | An error results if the same property is specified in multiple | |
77 | .Fl o | |
78 | options. | |
79 | .It Fl p | |
80 | Creates all the non-existing parent datasets. | |
81 | Datasets created in this manner are automatically mounted according to the | |
82 | .Sy mountpoint | |
83 | property inherited from their parent. | |
84 | Any property specified on the command line using the | |
85 | .Fl o | |
86 | option is ignored. | |
87 | If the target filesystem already exists, the operation completes successfully. | |
88 | .It Fl n | |
89 | Do a dry-run | |
90 | .Pq Qq No-op | |
91 | creation. | |
92 | No datasets will be created. | |
93 | This is useful in conjunction with the | |
94 | .Fl v | |
95 | or | |
96 | .Fl P | |
97 | flags to validate properties that are passed via | |
98 | .Fl o | |
99 | options and those implied by other options. | |
100 | The actual dataset creation can still fail due to insufficient privileges or | |
101 | available capacity. | |
102 | .It Fl P | |
103 | Print machine-parsable verbose information about the created dataset. | |
104 | Each line of output contains a key and one or two values, all separated by tabs. | |
105 | The | |
106 | .Sy create_ancestors | |
107 | and | |
108 | .Sy create | |
109 | keys have | |
110 | .Em filesystem | |
111 | as their only value. | |
112 | The | |
113 | .Sy create_ancestors | |
114 | key only appears if the | |
115 | .Fl p | |
116 | option is used. | |
117 | The | |
118 | .Sy property | |
119 | key has two values, a property name that property's value. | |
120 | The | |
121 | .Sy property | |
122 | key may appear zero or more times, once for each property that will be set local | |
123 | to | |
124 | .Em filesystem | |
125 | due to the use of the | |
126 | .Fl o | |
127 | option. | |
4b6e2a5a RM |
128 | .It Fl u |
129 | Do not mount the newly created file system. | |
870fc32f RW |
130 | .It Fl v |
131 | Print verbose information about the created dataset. | |
132 | .El | |
133 | .It Xo | |
1e36af8c | 134 | .Nm zfs |
870fc32f RW |
135 | .Cm create |
136 | .Op Fl ps | |
137 | .Op Fl b Ar blocksize | |
f84fe3fc | 138 | .Oo Fl o Ar property Ns = Ns Ar value Oc Ns … |
870fc32f RW |
139 | .Fl V Ar size Ar volume |
140 | .Xc | |
141 | Creates a volume of the given size. | |
142 | The volume is exported as a block device in | |
143 | .Pa /dev/zvol/path , | |
144 | where | |
145 | .Em path | |
146 | is the name of the volume in the ZFS namespace. | |
147 | The size represents the logical size as exported by the device. | |
148 | By default, a reservation of equal size is created. | |
149 | .Pp | |
150 | .Ar size | |
47c9299f | 151 | is automatically rounded up to the nearest multiple of the |
870fc32f RW |
152 | .Sy blocksize . |
153 | .Bl -tag -width "-b" | |
154 | .It Fl b Ar blocksize | |
155 | Equivalent to | |
156 | .Fl o Sy volblocksize Ns = Ns Ar blocksize . | |
157 | If this option is specified in conjunction with | |
158 | .Fl o Sy volblocksize , | |
159 | the resulting behavior is undefined. | |
160 | .It Fl o Ar property Ns = Ns Ar value | |
161 | Sets the specified property as if the | |
162 | .Nm zfs Cm set Ar property Ns = Ns Ar value | |
163 | command was invoked at the same time the dataset was created. | |
164 | Any editable ZFS property can also be set at creation time. | |
165 | Multiple | |
166 | .Fl o | |
167 | options can be specified. | |
168 | An error results if the same property is specified in multiple | |
169 | .Fl o | |
170 | options. | |
171 | .It Fl p | |
172 | Creates all the non-existing parent datasets. | |
173 | Datasets created in this manner are automatically mounted according to the | |
174 | .Sy mountpoint | |
175 | property inherited from their parent. | |
176 | Any property specified on the command line using the | |
177 | .Fl o | |
178 | option is ignored. | |
179 | If the target filesystem already exists, the operation completes successfully. | |
180 | .It Fl s | |
181 | Creates a sparse volume with no reservation. | |
182 | See | |
183 | .Sy volsize | |
184 | in the | |
185 | .Em Native Properties | |
186 | section of | |
2badb345 | 187 | .Xr zfsprops 7 |
870fc32f RW |
188 | for more information about sparse volumes. |
189 | .It Fl n | |
190 | Do a dry-run | |
191 | .Pq Qq No-op | |
192 | creation. | |
193 | No datasets will be created. | |
194 | This is useful in conjunction with the | |
195 | .Fl v | |
196 | or | |
197 | .Fl P | |
198 | flags to validate properties that are passed via | |
199 | .Fl o | |
200 | options and those implied by other options. | |
201 | The actual dataset creation can still fail due to insufficient privileges or | |
202 | available capacity. | |
203 | .It Fl P | |
204 | Print machine-parsable verbose information about the created dataset. | |
205 | Each line of output contains a key and one or two values, all separated by tabs. | |
206 | The | |
207 | .Sy create_ancestors | |
208 | and | |
209 | .Sy create | |
210 | keys have | |
211 | .Em volume | |
212 | as their only value. | |
213 | The | |
214 | .Sy create_ancestors | |
215 | key only appears if the | |
216 | .Fl p | |
217 | option is used. | |
218 | The | |
219 | .Sy property | |
220 | key has two values, a property name that property's value. | |
221 | The | |
222 | .Sy property | |
223 | key may appear zero or more times, once for each property that will be set local | |
224 | to | |
225 | .Em volume | |
226 | due to the use of the | |
227 | .Fl b | |
228 | or | |
229 | .Fl o | |
230 | options, as well as | |
231 | .Sy refreservation | |
232 | if the volume is not sparse. | |
233 | .It Fl v | |
234 | Print verbose information about the created dataset. | |
235 | .El | |
236 | .El | |
237 | .Ss ZFS Volumes as Swap | |
f84fe3fc AZ |
238 | ZFS volumes may be used as swap devices. |
239 | After creating the volume with the | |
870fc32f | 240 | .Nm zfs Cm create Fl V |
f84fe3fc | 241 | enable the swap area using the |
870fc32f | 242 | .Xr swapon 8 |
f84fe3fc AZ |
243 | command. |
244 | Swapping to files on ZFS filesystems is not supported. | |
245 | . | |
870fc32f RW |
246 | .Sh SEE ALSO |
247 | .Xr zfs-destroy 8 , | |
248 | .Xr zfs-list 8 , | |
249 | .Xr zpool-create 8 |