4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright (c) 2013, 2015 by Delphix. All rights reserved.
25 * Copyright (c) 2016 Intel Corporation.
26 * Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com>.
30 * Functions to convert between a list of vdevs and an nvlist representing the
31 * configuration. Each entry in the list can be one of:
34 * disk=(path=..., devid=...)
43 * While the underlying implementation supports it, group vdevs cannot contain
44 * other group vdevs. All userland verification of devices is contained within
45 * this file. If successful, the nvlist returned can be passed directly to the
46 * kernel; we've done as much verification as possible in userland.
48 * Hot spares are a special case, and passed down as an array of disk vdevs, at
49 * the same level as the root of the vdev tree.
51 * The only function exported by this file is 'make_root_vdev'. The
52 * function performs several passes:
54 * 1. Construct the vdev specification. Performs syntax validation and
55 * makes sure each device is valid.
56 * 2. Check for devices in use. Using libblkid to make sure that no
57 * devices are also in use. Some can be overridden using the 'force'
58 * flag, others cannot.
59 * 3. Check for replication errors if the 'force' flag is not specified.
60 * validates that the replication level is consistent across the
62 * 4. Call libzfs to label any whole disks with an EFI label.
71 #include <libnvpair.h>
74 #include <scsi/scsi.h>
79 #include <sys/efi_partition.h>
82 #include <sys/mntent.h>
83 #include <uuid/uuid.h>
84 #include <blkid/blkid.h>
85 #include "zpool_util.h"
86 #include <sys/zfs_context.h>
89 * For any given vdev specification, we can have multiple errors. The
90 * vdev_error() function keeps track of whether we have seen an error yet, and
91 * prints out a header if its the first error we've seen.
96 typedef struct vdev_disk_db_entry
100 } vdev_disk_db_entry_t
;
103 * Database of block devices that lie about physical sector sizes. The
104 * identification string must be precisely 24 characters to avoid false
107 static vdev_disk_db_entry_t vdev_disk_database
[] = {
108 {"ATA ADATA SSD S396 3", 8192},
109 {"ATA APPLE SSD SM128E", 8192},
110 {"ATA APPLE SSD SM256E", 8192},
111 {"ATA APPLE SSD SM512E", 8192},
112 {"ATA APPLE SSD SM768E", 8192},
113 {"ATA C400-MTFDDAC064M", 8192},
114 {"ATA C400-MTFDDAC128M", 8192},
115 {"ATA C400-MTFDDAC256M", 8192},
116 {"ATA C400-MTFDDAC512M", 8192},
117 {"ATA Corsair Force 3 ", 8192},
118 {"ATA Corsair Force GS", 8192},
119 {"ATA INTEL SSDSA2CT04", 8192},
120 {"ATA INTEL SSDSA2BZ10", 8192},
121 {"ATA INTEL SSDSA2BZ20", 8192},
122 {"ATA INTEL SSDSA2BZ30", 8192},
123 {"ATA INTEL SSDSA2CW04", 8192},
124 {"ATA INTEL SSDSA2CW08", 8192},
125 {"ATA INTEL SSDSA2CW12", 8192},
126 {"ATA INTEL SSDSA2CW16", 8192},
127 {"ATA INTEL SSDSA2CW30", 8192},
128 {"ATA INTEL SSDSA2CW60", 8192},
129 {"ATA INTEL SSDSC2CT06", 8192},
130 {"ATA INTEL SSDSC2CT12", 8192},
131 {"ATA INTEL SSDSC2CT18", 8192},
132 {"ATA INTEL SSDSC2CT24", 8192},
133 {"ATA INTEL SSDSC2CW06", 8192},
134 {"ATA INTEL SSDSC2CW12", 8192},
135 {"ATA INTEL SSDSC2CW18", 8192},
136 {"ATA INTEL SSDSC2CW24", 8192},
137 {"ATA INTEL SSDSC2CW48", 8192},
138 {"ATA KINGSTON SH100S3", 8192},
139 {"ATA KINGSTON SH103S3", 8192},
140 {"ATA M4-CT064M4SSD2 ", 8192},
141 {"ATA M4-CT128M4SSD2 ", 8192},
142 {"ATA M4-CT256M4SSD2 ", 8192},
143 {"ATA M4-CT512M4SSD2 ", 8192},
144 {"ATA OCZ-AGILITY2 ", 8192},
145 {"ATA OCZ-AGILITY3 ", 8192},
146 {"ATA OCZ-VERTEX2 3.5 ", 8192},
147 {"ATA OCZ-VERTEX3 ", 8192},
148 {"ATA OCZ-VERTEX3 LT ", 8192},
149 {"ATA OCZ-VERTEX3 MI ", 8192},
150 {"ATA OCZ-VERTEX4 ", 8192},
151 {"ATA SAMSUNG MZ7WD120", 8192},
152 {"ATA SAMSUNG MZ7WD240", 8192},
153 {"ATA SAMSUNG MZ7WD480", 8192},
154 {"ATA SAMSUNG MZ7WD960", 8192},
155 {"ATA SAMSUNG SSD 830 ", 8192},
156 {"ATA Samsung SSD 840 ", 8192},
157 {"ATA SanDisk SSD U100", 8192},
158 {"ATA TOSHIBA THNSNH06", 8192},
159 {"ATA TOSHIBA THNSNH12", 8192},
160 {"ATA TOSHIBA THNSNH25", 8192},
161 {"ATA TOSHIBA THNSNH51", 8192},
162 {"ATA APPLE SSD TS064C", 4096},
163 {"ATA APPLE SSD TS128C", 4096},
164 {"ATA APPLE SSD TS256C", 4096},
165 {"ATA APPLE SSD TS512C", 4096},
166 {"ATA INTEL SSDSA2M040", 4096},
167 {"ATA INTEL SSDSA2M080", 4096},
168 {"ATA INTEL SSDSA2M160", 4096},
169 {"ATA INTEL SSDSC2MH12", 4096},
170 {"ATA INTEL SSDSC2MH25", 4096},
171 {"ATA OCZ CORE_SSD ", 4096},
172 {"ATA OCZ-VERTEX ", 4096},
173 {"ATA SAMSUNG MCCOE32G", 4096},
174 {"ATA SAMSUNG MCCOE64G", 4096},
175 {"ATA SAMSUNG SSD PM80", 4096},
176 /* Flash drives optimized for 4KB IOs on larger pages */
177 {"ATA INTEL SSDSC2BA10", 4096},
178 {"ATA INTEL SSDSC2BA20", 4096},
179 {"ATA INTEL SSDSC2BA40", 4096},
180 {"ATA INTEL SSDSC2BA80", 4096},
181 {"ATA INTEL SSDSC2BB08", 4096},
182 {"ATA INTEL SSDSC2BB12", 4096},
183 {"ATA INTEL SSDSC2BB16", 4096},
184 {"ATA INTEL SSDSC2BB24", 4096},
185 {"ATA INTEL SSDSC2BB30", 4096},
186 {"ATA INTEL SSDSC2BB40", 4096},
187 {"ATA INTEL SSDSC2BB48", 4096},
188 {"ATA INTEL SSDSC2BB60", 4096},
189 {"ATA INTEL SSDSC2BB80", 4096},
190 {"ATA INTEL SSDSC2BW24", 4096},
191 {"ATA INTEL SSDSC2BP24", 4096},
192 {"ATA INTEL SSDSC2BP48", 4096},
193 {"NA SmrtStorSDLKAE9W", 4096},
194 {"NVMe Amazon EC2 NVMe ", 4096},
195 /* Imported from Open Solaris */
196 {"ATA MARVELL SD88SA02", 4096},
197 /* Advanced format Hard drives */
198 {"ATA Hitachi HDS5C303", 4096},
199 {"ATA SAMSUNG HD204UI ", 4096},
200 {"ATA ST2000DL004 HD20", 4096},
201 {"ATA WDC WD10EARS-00M", 4096},
202 {"ATA WDC WD10EARS-00S", 4096},
203 {"ATA WDC WD10EARS-00Z", 4096},
204 {"ATA WDC WD15EARS-00M", 4096},
205 {"ATA WDC WD15EARS-00S", 4096},
206 {"ATA WDC WD15EARS-00Z", 4096},
207 {"ATA WDC WD20EARS-00M", 4096},
208 {"ATA WDC WD20EARS-00S", 4096},
209 {"ATA WDC WD20EARS-00Z", 4096},
210 {"ATA WDC WD1600BEVT-0", 4096},
211 {"ATA WDC WD2500BEVT-0", 4096},
212 {"ATA WDC WD3200BEVT-0", 4096},
213 {"ATA WDC WD5000BEVT-0", 4096},
214 /* Virtual disks: Assume zvols with default volblocksize */
216 {"ATA QEMU HARDDISK ", 8192},
217 {"IET VIRTUAL-DISK ", 8192},
218 {"OI COMSTAR ", 8192},
219 {"SUN COMSTAR ", 8192},
220 {"NETAPP LUN ", 8192},
224 static const int vdev_disk_database_size
=
225 sizeof (vdev_disk_database
) / sizeof (vdev_disk_database
[0]);
227 #define INQ_REPLY_LEN 96
228 #define INQ_CMD_LEN 6
231 check_sector_size_database(char *path
, int *sector_size
)
233 unsigned char inq_buff
[INQ_REPLY_LEN
];
234 unsigned char sense_buffer
[32];
235 unsigned char inq_cmd_blk
[INQ_CMD_LEN
] =
236 {INQUIRY
, 0, 0, 0, INQ_REPLY_LEN
, 0};
242 /* Prepare INQUIRY command */
243 memset(&io_hdr
, 0, sizeof (sg_io_hdr_t
));
244 io_hdr
.interface_id
= 'S';
245 io_hdr
.cmd_len
= sizeof (inq_cmd_blk
);
246 io_hdr
.mx_sb_len
= sizeof (sense_buffer
);
247 io_hdr
.dxfer_direction
= SG_DXFER_FROM_DEV
;
248 io_hdr
.dxfer_len
= INQ_REPLY_LEN
;
249 io_hdr
.dxferp
= inq_buff
;
250 io_hdr
.cmdp
= inq_cmd_blk
;
251 io_hdr
.sbp
= sense_buffer
;
252 io_hdr
.timeout
= 10; /* 10 milliseconds is ample time */
254 if ((fd
= open(path
, O_RDONLY
|O_DIRECT
)) < 0)
257 error
= ioctl(fd
, SG_IO
, (unsigned long) &io_hdr
);
264 if ((io_hdr
.info
& SG_INFO_OK_MASK
) != SG_INFO_OK
)
267 for (i
= 0; i
< vdev_disk_database_size
; i
++) {
268 if (memcmp(inq_buff
+ 8, vdev_disk_database
[i
].id
, 24))
271 *sector_size
= vdev_disk_database
[i
].sector_size
;
280 vdev_error(const char *fmt
, ...)
285 (void) fprintf(stderr
, gettext("invalid vdev specification\n"));
287 (void) fprintf(stderr
, gettext("use '-f' to override "
288 "the following errors:\n"));
290 (void) fprintf(stderr
, gettext("the following errors "
291 "must be manually repaired:\n"));
296 (void) vfprintf(stderr
, fmt
, ap
);
301 * Check that a file is valid. All we can do in this case is check that it's
302 * not in use by another pool, and not in use by swap.
305 check_file(const char *file
, boolean_t force
, boolean_t isspare
)
313 if ((fd
= open(file
, O_RDONLY
)) < 0)
316 if (zpool_in_use(g_zfs
, fd
, &state
, &name
, &inuse
) == 0 && inuse
) {
320 case POOL_STATE_ACTIVE
:
321 desc
= gettext("active");
324 case POOL_STATE_EXPORTED
:
325 desc
= gettext("exported");
328 case POOL_STATE_POTENTIALLY_ACTIVE
:
329 desc
= gettext("potentially active");
333 desc
= gettext("unknown");
338 * Allow hot spares to be shared between pools.
340 if (state
== POOL_STATE_SPARE
&& isspare
) {
346 if (state
== POOL_STATE_ACTIVE
||
347 state
== POOL_STATE_SPARE
|| !force
) {
349 case POOL_STATE_SPARE
:
350 vdev_error(gettext("%s is reserved as a hot "
351 "spare for pool %s\n"), file
, name
);
354 vdev_error(gettext("%s is part of %s pool "
355 "'%s'\n"), file
, desc
, name
);
369 check_slice(const char *path
, blkid_cache cache
, int force
, boolean_t isspare
)
374 /* No valid type detected device is safe to use */
375 value
= blkid_get_tag_value(cache
, "TYPE", path
);
380 * If libblkid detects a ZFS device, we check the device
381 * using check_file() to see if it's safe. The one safe
382 * case is a spare device shared between multiple pools.
384 if (strcmp(value
, "zfs_member") == 0) {
385 err
= check_file(path
, force
, isspare
);
391 vdev_error(gettext("%s contains a filesystem of "
392 "type '%s'\n"), path
, value
);
402 * Validate that a disk including all partitions are safe to use.
404 * For EFI labeled disks this can done relatively easily with the libefi
405 * library. The partition numbers are extracted from the label and used
406 * to generate the expected /dev/ paths. Each partition can then be
407 * checked for conflicts.
409 * For non-EFI labeled disks (MBR/EBR/etc) the same process is possible
410 * but due to the lack of a readily available libraries this scanning is
411 * not implemented. Instead only the device path as given is checked.
414 check_disk(const char *path
, blkid_cache cache
, int force
,
415 boolean_t isspare
, boolean_t iswholedisk
)
418 char slice_path
[MAXPATHLEN
];
423 return (check_slice(path
, cache
, force
, isspare
));
425 if ((fd
= open(path
, O_RDONLY
|O_DIRECT
|O_EXCL
)) < 0) {
426 char *value
= blkid_get_tag_value(cache
, "TYPE", path
);
427 (void) fprintf(stderr
, gettext("%s is in use and contains "
428 "a %s filesystem.\n"), path
, value
? value
: "unknown");
433 * Expected to fail for non-EFI labled disks. Just check the device
434 * as given and do not attempt to detect and scan partitions.
436 err
= efi_alloc_and_read(fd
, &vtoc
);
439 return (check_slice(path
, cache
, force
, isspare
));
443 * The primary efi partition label is damaged however the secondary
444 * label at the end of the device is intact. Rather than use this
445 * label we should play it safe and treat this as a non efi device.
447 if (vtoc
->efi_flags
& EFI_GPT_PRIMARY_CORRUPT
) {
452 /* Partitions will now be created using the backup */
455 vdev_error(gettext("%s contains a corrupt primary "
456 "EFI label.\n"), path
);
461 for (i
= 0; i
< vtoc
->efi_nparts
; i
++) {
463 if (vtoc
->efi_parts
[i
].p_tag
== V_UNASSIGNED
||
464 uuid_is_null((uchar_t
*)&vtoc
->efi_parts
[i
].p_guid
))
467 if (strncmp(path
, UDISK_ROOT
, strlen(UDISK_ROOT
)) == 0)
468 (void) snprintf(slice_path
, sizeof (slice_path
),
469 "%s%s%d", path
, "-part", i
+1);
471 (void) snprintf(slice_path
, sizeof (slice_path
),
472 "%s%s%d", path
, isdigit(path
[strlen(path
)-1]) ?
475 err
= check_slice(slice_path
, cache
, force
, isspare
);
487 check_device(const char *path
, boolean_t force
,
488 boolean_t isspare
, boolean_t iswholedisk
)
493 error
= blkid_get_cache(&cache
, NULL
);
495 (void) fprintf(stderr
, gettext("unable to access the blkid "
500 error
= check_disk(path
, cache
, force
, isspare
, iswholedisk
);
501 blkid_put_cache(cache
);
507 * This may be a shorthand device path or it could be total gibberish.
508 * Check to see if it is a known device available in zfs_vdev_paths.
509 * As part of this check, see if we've been given an entire disk
510 * (minus the slice number).
513 is_shorthand_path(const char *arg
, char *path
, size_t path_size
,
514 struct stat64
*statbuf
, boolean_t
*wholedisk
)
518 error
= zfs_resolve_shortname(arg
, path
, path_size
);
520 *wholedisk
= zfs_dev_is_whole_disk(path
);
521 if (*wholedisk
|| (stat64(path
, statbuf
) == 0))
525 strlcpy(path
, arg
, path_size
);
526 memset(statbuf
, 0, sizeof (*statbuf
));
527 *wholedisk
= B_FALSE
;
533 * Determine if the given path is a hot spare within the given configuration.
534 * If no configuration is given we rely solely on the label.
537 is_spare(nvlist_t
*config
, const char *path
)
543 uint64_t guid
, spareguid
;
549 if ((fd
= open(path
, O_RDONLY
)) < 0)
552 if (zpool_in_use(g_zfs
, fd
, &state
, &name
, &inuse
) != 0 ||
554 state
!= POOL_STATE_SPARE
||
555 zpool_read_label(fd
, &label
, NULL
) != 0) {
563 if (config
== NULL
) {
568 verify(nvlist_lookup_uint64(label
, ZPOOL_CONFIG_GUID
, &guid
) == 0);
571 verify(nvlist_lookup_nvlist(config
, ZPOOL_CONFIG_VDEV_TREE
,
573 if (nvlist_lookup_nvlist_array(nvroot
, ZPOOL_CONFIG_SPARES
,
574 &spares
, &nspares
) == 0) {
575 for (i
= 0; i
< nspares
; i
++) {
576 verify(nvlist_lookup_uint64(spares
[i
],
577 ZPOOL_CONFIG_GUID
, &spareguid
) == 0);
578 if (spareguid
== guid
)
587 * Create a leaf vdev. Determine if this is a file or a device. If it's a
588 * device, fill in the device id to make a complete nvlist. Valid forms for a
591 * /dev/xxx Complete disk path
592 * /xxx Full path to file
593 * xxx Shorthand for <zfs_vdev_paths>/xxx
596 make_leaf_vdev(nvlist_t
*props
, const char *arg
, uint64_t is_log
)
598 char path
[MAXPATHLEN
];
599 struct stat64 statbuf
;
600 nvlist_t
*vdev
= NULL
;
602 boolean_t wholedisk
= B_FALSE
;
607 * Determine what type of vdev this is, and put the full path into
608 * 'path'. We detect whether this is a device of file afterwards by
609 * checking the st_mode of the file.
613 * Complete device or file path. Exact type is determined by
614 * examining the file descriptor afterwards. Symbolic links
615 * are resolved to their real paths to determine whole disk
616 * and S_ISBLK/S_ISREG type checks. However, we are careful
617 * to store the given path as ZPOOL_CONFIG_PATH to ensure we
618 * can leverage udev's persistent device labels.
620 if (realpath(arg
, path
) == NULL
) {
621 (void) fprintf(stderr
,
622 gettext("cannot resolve path '%s'\n"), arg
);
626 wholedisk
= zfs_dev_is_whole_disk(path
);
627 if (!wholedisk
&& (stat64(path
, &statbuf
) != 0)) {
628 (void) fprintf(stderr
,
629 gettext("cannot open '%s': %s\n"),
630 path
, strerror(errno
));
634 /* After whole disk check restore original passed path */
635 strlcpy(path
, arg
, sizeof (path
));
637 err
= is_shorthand_path(arg
, path
, sizeof (path
),
638 &statbuf
, &wholedisk
);
641 * If we got ENOENT, then the user gave us
642 * gibberish, so try to direct them with a
643 * reasonable error message. Otherwise,
644 * regurgitate strerror() since it's the best we
648 (void) fprintf(stderr
,
649 gettext("cannot open '%s': no such "
650 "device in %s\n"), arg
, DISK_ROOT
);
651 (void) fprintf(stderr
,
652 gettext("must be a full path or "
653 "shorthand device name\n"));
656 (void) fprintf(stderr
,
657 gettext("cannot open '%s': %s\n"),
658 path
, strerror(errno
));
665 * Determine whether this is a device or a file.
667 if (wholedisk
|| S_ISBLK(statbuf
.st_mode
)) {
668 type
= VDEV_TYPE_DISK
;
669 } else if (S_ISREG(statbuf
.st_mode
)) {
670 type
= VDEV_TYPE_FILE
;
672 (void) fprintf(stderr
, gettext("cannot use '%s': must be a "
673 "block device or regular file\n"), path
);
678 * Finally, we have the complete device or file, and we know that it is
679 * acceptable to use. Construct the nvlist to describe this vdev. All
680 * vdevs have a 'path' element, and devices also have a 'devid' element.
682 verify(nvlist_alloc(&vdev
, NV_UNIQUE_NAME
, 0) == 0);
683 verify(nvlist_add_string(vdev
, ZPOOL_CONFIG_PATH
, path
) == 0);
684 verify(nvlist_add_string(vdev
, ZPOOL_CONFIG_TYPE
, type
) == 0);
685 verify(nvlist_add_uint64(vdev
, ZPOOL_CONFIG_IS_LOG
, is_log
) == 0);
686 if (strcmp(type
, VDEV_TYPE_DISK
) == 0)
687 verify(nvlist_add_uint64(vdev
, ZPOOL_CONFIG_WHOLE_DISK
,
688 (uint64_t)wholedisk
) == 0);
691 * Override defaults if custom properties are provided.
696 if (nvlist_lookup_string(props
,
697 zpool_prop_to_name(ZPOOL_PROP_ASHIFT
), &value
) == 0) {
698 if (zfs_nicestrtonum(NULL
, value
, &ashift
) != 0) {
699 (void) fprintf(stderr
,
700 gettext("ashift must be a number.\n"));
704 (ashift
< ASHIFT_MIN
|| ashift
> ASHIFT_MAX
)) {
705 (void) fprintf(stderr
,
706 gettext("invalid 'ashift=%" PRIu64
"' "
707 "property: only values between %" PRId32
" "
708 "and %" PRId32
" are allowed.\n"),
709 ashift
, ASHIFT_MIN
, ASHIFT_MAX
);
716 * If the device is known to incorrectly report its physical sector
717 * size explicitly provide the known correct value.
722 if (check_sector_size_database(path
, §or_size
) == B_TRUE
)
723 ashift
= highbit64(sector_size
) - 1;
727 (void) nvlist_add_uint64(vdev
, ZPOOL_CONFIG_ASHIFT
, ashift
);
733 * Go through and verify the replication level of the pool is consistent.
734 * Performs the following checks:
736 * For the new spec, verifies that devices in mirrors and raidz are the
739 * If the current configuration already has inconsistent replication
740 * levels, ignore any other potential problems in the new spec.
742 * Otherwise, make sure that the current spec (if there is one) and the new
743 * spec have consistent replication levels.
745 typedef struct replication_level
{
747 uint64_t zprl_children
;
748 uint64_t zprl_parity
;
749 } replication_level_t
;
751 #define ZPOOL_FUZZ (16 * 1024 * 1024)
754 is_raidz_mirror(replication_level_t
*a
, replication_level_t
*b
,
755 replication_level_t
**raidz
, replication_level_t
**mirror
)
757 if (strcmp(a
->zprl_type
, "raidz") == 0 &&
758 strcmp(b
->zprl_type
, "mirror") == 0) {
767 * Given a list of toplevel vdevs, return the current replication level. If
768 * the config is inconsistent, then NULL is returned. If 'fatal' is set, then
769 * an error message will be displayed for each self-inconsistent vdev.
771 static replication_level_t
*
772 get_replication(nvlist_t
*nvroot
, boolean_t fatal
)
780 replication_level_t lastrep
= {0};
781 replication_level_t rep
;
782 replication_level_t
*ret
;
783 replication_level_t
*raidz
, *mirror
;
784 boolean_t dontreport
;
786 ret
= safe_malloc(sizeof (replication_level_t
));
788 verify(nvlist_lookup_nvlist_array(nvroot
, ZPOOL_CONFIG_CHILDREN
,
789 &top
, &toplevels
) == 0);
791 for (t
= 0; t
< toplevels
; t
++) {
792 uint64_t is_log
= B_FALSE
;
797 * For separate logs we ignore the top level vdev replication
800 (void) nvlist_lookup_uint64(nv
, ZPOOL_CONFIG_IS_LOG
, &is_log
);
804 /* Ignore holes introduced by removing aux devices */
805 verify(nvlist_lookup_string(nv
, ZPOOL_CONFIG_TYPE
, &type
) == 0);
806 if (strcmp(type
, VDEV_TYPE_HOLE
) == 0)
809 if (nvlist_lookup_nvlist_array(nv
, ZPOOL_CONFIG_CHILDREN
,
810 &child
, &children
) != 0) {
812 * This is a 'file' or 'disk' vdev.
814 rep
.zprl_type
= type
;
815 rep
.zprl_children
= 1;
821 * This is a mirror or RAID-Z vdev. Go through and make
822 * sure the contents are all the same (files vs. disks),
823 * keeping track of the number of elements in the
826 * We also check that the size of each vdev (if it can
827 * be determined) is the same.
829 rep
.zprl_type
= type
;
830 rep
.zprl_children
= 0;
832 if (strcmp(type
, VDEV_TYPE_RAIDZ
) == 0) {
833 verify(nvlist_lookup_uint64(nv
,
834 ZPOOL_CONFIG_NPARITY
,
835 &rep
.zprl_parity
) == 0);
836 assert(rep
.zprl_parity
!= 0);
842 * The 'dontreport' variable indicates that we've
843 * already reported an error for this spec, so don't
844 * bother doing it again.
849 for (c
= 0; c
< children
; c
++) {
850 nvlist_t
*cnv
= child
[c
];
852 struct stat64 statbuf
;
853 uint64_t size
= -1ULL;
859 verify(nvlist_lookup_string(cnv
,
860 ZPOOL_CONFIG_TYPE
, &childtype
) == 0);
863 * If this is a replacing or spare vdev, then
864 * get the real first child of the vdev: do this
865 * in a loop because replacing and spare vdevs
868 while (strcmp(childtype
,
869 VDEV_TYPE_REPLACING
) == 0 ||
870 strcmp(childtype
, VDEV_TYPE_SPARE
) == 0) {
874 verify(nvlist_lookup_nvlist_array(cnv
,
875 ZPOOL_CONFIG_CHILDREN
, &rchild
,
877 assert(rchildren
== 2);
880 verify(nvlist_lookup_string(cnv
,
885 verify(nvlist_lookup_string(cnv
,
886 ZPOOL_CONFIG_PATH
, &path
) == 0);
889 * If we have a raidz/mirror that combines disks
890 * with files, report it as an error.
892 if (!dontreport
&& type
!= NULL
&&
893 strcmp(type
, childtype
) != 0) {
899 "mismatched replication "
900 "level: %s contains both "
901 "files and devices\n"),
909 * According to stat(2), the value of 'st_size'
910 * is undefined for block devices and character
911 * devices. But there is no effective way to
912 * determine the real size in userland.
914 * Instead, we'll take advantage of an
915 * implementation detail of spec_size(). If the
916 * device is currently open, then we (should)
917 * return a valid size.
919 * If we still don't get a valid size (indicated
920 * by a size of 0 or MAXOFFSET_T), then ignore
921 * this device altogether.
923 if ((fd
= open(path
, O_RDONLY
)) >= 0) {
924 err
= fstat64_blk(fd
, &statbuf
);
927 err
= stat64(path
, &statbuf
);
931 statbuf
.st_size
== 0 ||
932 statbuf
.st_size
== MAXOFFSET_T
)
935 size
= statbuf
.st_size
;
938 * Also make sure that devices and
939 * slices have a consistent size. If
940 * they differ by a significant amount
941 * (~16MB) then report an error.
944 (vdev_size
!= -1ULL &&
945 (labs(size
- vdev_size
) >
952 "%s contains devices of "
953 "different sizes\n"),
966 * At this point, we have the replication of the last toplevel
967 * vdev in 'rep'. Compare it to 'lastrep' to see if its
970 if (lastrep
.zprl_type
!= NULL
) {
971 if (is_raidz_mirror(&lastrep
, &rep
, &raidz
, &mirror
) ||
972 is_raidz_mirror(&rep
, &lastrep
, &raidz
, &mirror
)) {
974 * Accepted raidz and mirror when they can
975 * handle the same number of disk failures.
977 if (raidz
->zprl_parity
!=
978 mirror
->zprl_children
- 1) {
984 "mismatched replication "
986 "%s and %s vdevs with "
987 "different redundancy, "
988 "%llu vs. %llu (%llu-way) "
993 mirror
->zprl_children
- 1,
994 mirror
->zprl_children
);
998 } else if (strcmp(lastrep
.zprl_type
, rep
.zprl_type
) !=
1005 "mismatched replication level: "
1006 "both %s and %s vdevs are "
1008 lastrep
.zprl_type
, rep
.zprl_type
);
1011 } else if (lastrep
.zprl_parity
!= rep
.zprl_parity
) {
1017 "mismatched replication level: "
1018 "both %llu and %llu device parity "
1019 "%s vdevs are present\n"),
1020 lastrep
.zprl_parity
,
1025 } else if (lastrep
.zprl_children
!= rep
.zprl_children
) {
1031 "mismatched replication level: "
1032 "both %llu-way and %llu-way %s "
1033 "vdevs are present\n"),
1034 lastrep
.zprl_children
,
1051 * Check the replication level of the vdev spec against the current pool. Calls
1052 * get_replication() to make sure the new spec is self-consistent. If the pool
1053 * has a consistent replication level, then we ignore any errors. Otherwise,
1054 * report any difference between the two.
1057 check_replication(nvlist_t
*config
, nvlist_t
*newroot
)
1061 replication_level_t
*current
= NULL
, *new;
1062 replication_level_t
*raidz
, *mirror
;
1066 * If we have a current pool configuration, check to see if it's
1067 * self-consistent. If not, simply return success.
1069 if (config
!= NULL
) {
1072 verify(nvlist_lookup_nvlist(config
, ZPOOL_CONFIG_VDEV_TREE
,
1074 if ((current
= get_replication(nvroot
, B_FALSE
)) == NULL
)
1078 * for spares there may be no children, and therefore no
1079 * replication level to check
1081 if ((nvlist_lookup_nvlist_array(newroot
, ZPOOL_CONFIG_CHILDREN
,
1082 &child
, &children
) != 0) || (children
== 0)) {
1088 * If all we have is logs then there's no replication level to check.
1090 if (num_logs(newroot
) == children
) {
1096 * Get the replication level of the new vdev spec, reporting any
1097 * inconsistencies found.
1099 if ((new = get_replication(newroot
, B_TRUE
)) == NULL
) {
1105 * Check to see if the new vdev spec matches the replication level of
1109 if (current
!= NULL
) {
1110 if (is_raidz_mirror(current
, new, &raidz
, &mirror
) ||
1111 is_raidz_mirror(new, current
, &raidz
, &mirror
)) {
1112 if (raidz
->zprl_parity
!= mirror
->zprl_children
- 1) {
1114 "mismatched replication level: pool and "
1115 "new vdev with different redundancy, %s "
1116 "and %s vdevs, %llu vs. %llu (%llu-way)\n"),
1120 mirror
->zprl_children
- 1,
1121 mirror
->zprl_children
);
1124 } else if (strcmp(current
->zprl_type
, new->zprl_type
) != 0) {
1126 "mismatched replication level: pool uses %s "
1127 "and new vdev is %s\n"),
1128 current
->zprl_type
, new->zprl_type
);
1130 } else if (current
->zprl_parity
!= new->zprl_parity
) {
1132 "mismatched replication level: pool uses %llu "
1133 "device parity and new vdev uses %llu\n"),
1134 current
->zprl_parity
, new->zprl_parity
);
1136 } else if (current
->zprl_children
!= new->zprl_children
) {
1138 "mismatched replication level: pool uses %llu-way "
1139 "%s and new vdev uses %llu-way %s\n"),
1140 current
->zprl_children
, current
->zprl_type
,
1141 new->zprl_children
, new->zprl_type
);
1147 if (current
!= NULL
)
1154 zero_label(char *path
)
1156 const int size
= 4096;
1160 if ((fd
= open(path
, O_WRONLY
|O_EXCL
)) < 0) {
1161 (void) fprintf(stderr
, gettext("cannot open '%s': %s\n"),
1162 path
, strerror(errno
));
1166 memset(buf
, 0, size
);
1167 err
= write(fd
, buf
, size
);
1168 (void) fdatasync(fd
);
1172 (void) fprintf(stderr
, gettext("cannot zero first %d bytes "
1173 "of '%s': %s\n"), size
, path
, strerror(errno
));
1178 (void) fprintf(stderr
, gettext("could only zero %d/%d bytes "
1179 "of '%s'\n"), err
, size
, path
);
1187 * Go through and find any whole disks in the vdev specification, labelling them
1188 * as appropriate. When constructing the vdev spec, we were unable to open this
1189 * device in order to provide a devid. Now that we have labelled the disk and
1190 * know that slice 0 is valid, we can construct the devid now.
1192 * If the disk was already labeled with an EFI label, we will have gotten the
1193 * devid already (because we were able to open the whole disk). Otherwise, we
1194 * need to get the devid after we label the disk.
1197 make_disks(zpool_handle_t
*zhp
, nvlist_t
*nv
)
1202 char devpath
[MAXPATHLEN
];
1203 char udevpath
[MAXPATHLEN
];
1205 struct stat64 statbuf
;
1206 int is_exclusive
= 0;
1210 verify(nvlist_lookup_string(nv
, ZPOOL_CONFIG_TYPE
, &type
) == 0);
1212 if (nvlist_lookup_nvlist_array(nv
, ZPOOL_CONFIG_CHILDREN
,
1213 &child
, &children
) != 0) {
1215 if (strcmp(type
, VDEV_TYPE_DISK
) != 0)
1219 * We have a disk device. If this is a whole disk write
1220 * out the efi partition table, otherwise write zero's to
1221 * the first 4k of the partition. This is to ensure that
1222 * libblkid will not misidentify the partition due to a
1223 * magic value left by the previous filesystem.
1225 verify(!nvlist_lookup_string(nv
, ZPOOL_CONFIG_PATH
, &path
));
1226 verify(!nvlist_lookup_uint64(nv
, ZPOOL_CONFIG_WHOLE_DISK
,
1231 * Update device id string for mpath nodes (Linux only)
1233 if (is_mpath_whole_disk(path
))
1234 update_vdev_config_dev_strs(nv
);
1236 if (!is_spare(NULL
, path
))
1237 (void) zero_label(path
);
1241 if (realpath(path
, devpath
) == NULL
) {
1243 (void) fprintf(stderr
,
1244 gettext("cannot resolve path '%s'\n"), path
);
1249 * Remove any previously existing symlink from a udev path to
1250 * the device before labeling the disk. This ensures that
1251 * only newly created links are used. Otherwise there is a
1252 * window between when udev deletes and recreates the link
1253 * during which access attempts will fail with ENOENT.
1255 strlcpy(udevpath
, path
, MAXPATHLEN
);
1256 (void) zfs_append_partition(udevpath
, MAXPATHLEN
);
1258 fd
= open(devpath
, O_RDWR
|O_EXCL
);
1267 * If the partition exists, contains a valid spare label,
1268 * and is opened exclusively there is no need to partition
1269 * it. Hot spares have already been partitioned and are
1270 * held open exclusively by the kernel as a safety measure.
1272 * If the provided path is for a /dev/disk/ device its
1273 * symbolic link will be removed, partition table created,
1274 * and then block until udev creates the new link.
1276 if (!is_exclusive
|| !is_spare(NULL
, udevpath
)) {
1277 char *devnode
= strrchr(devpath
, '/') + 1;
1279 ret
= strncmp(udevpath
, UDISK_ROOT
, strlen(UDISK_ROOT
));
1281 ret
= lstat64(udevpath
, &statbuf
);
1282 if (ret
== 0 && S_ISLNK(statbuf
.st_mode
))
1283 (void) unlink(udevpath
);
1287 * When labeling a pool the raw device node name
1288 * is provided as it appears under /dev/.
1290 if (zpool_label_disk(g_zfs
, zhp
, devnode
) == -1)
1294 * Wait for udev to signal the device is available
1295 * by the provided path.
1297 ret
= zpool_label_disk_wait(udevpath
, DISK_LABEL_WAIT
);
1299 (void) fprintf(stderr
,
1300 gettext("missing link: %s was "
1301 "partitioned but %s is missing\n"),
1306 ret
= zero_label(udevpath
);
1312 * Update the path to refer to the partition. The presence of
1313 * the 'whole_disk' field indicates to the CLI that we should
1314 * chop off the partition number when displaying the device in
1317 verify(nvlist_add_string(nv
, ZPOOL_CONFIG_PATH
, udevpath
) == 0);
1320 * Update device id strings for whole disks (Linux only)
1322 update_vdev_config_dev_strs(nv
);
1327 for (c
= 0; c
< children
; c
++)
1328 if ((ret
= make_disks(zhp
, child
[c
])) != 0)
1331 if (nvlist_lookup_nvlist_array(nv
, ZPOOL_CONFIG_SPARES
,
1332 &child
, &children
) == 0)
1333 for (c
= 0; c
< children
; c
++)
1334 if ((ret
= make_disks(zhp
, child
[c
])) != 0)
1337 if (nvlist_lookup_nvlist_array(nv
, ZPOOL_CONFIG_L2CACHE
,
1338 &child
, &children
) == 0)
1339 for (c
= 0; c
< children
; c
++)
1340 if ((ret
= make_disks(zhp
, child
[c
])) != 0)
1347 * Go through and find any devices that are in use. We rely on libdiskmgt for
1348 * the majority of this task.
1351 is_device_in_use(nvlist_t
*config
, nvlist_t
*nv
, boolean_t force
,
1352 boolean_t replacing
, boolean_t isspare
)
1358 char buf
[MAXPATHLEN
];
1359 uint64_t wholedisk
= B_FALSE
;
1360 boolean_t anyinuse
= B_FALSE
;
1362 verify(nvlist_lookup_string(nv
, ZPOOL_CONFIG_TYPE
, &type
) == 0);
1364 if (nvlist_lookup_nvlist_array(nv
, ZPOOL_CONFIG_CHILDREN
,
1365 &child
, &children
) != 0) {
1367 verify(!nvlist_lookup_string(nv
, ZPOOL_CONFIG_PATH
, &path
));
1368 if (strcmp(type
, VDEV_TYPE_DISK
) == 0)
1369 verify(!nvlist_lookup_uint64(nv
,
1370 ZPOOL_CONFIG_WHOLE_DISK
, &wholedisk
));
1373 * As a generic check, we look to see if this is a replace of a
1374 * hot spare within the same pool. If so, we allow it
1375 * regardless of what libblkid or zpool_in_use() says.
1378 (void) strlcpy(buf
, path
, sizeof (buf
));
1380 ret
= zfs_append_partition(buf
, sizeof (buf
));
1385 if (is_spare(config
, buf
))
1389 if (strcmp(type
, VDEV_TYPE_DISK
) == 0)
1390 ret
= check_device(path
, force
, isspare
, wholedisk
);
1392 else if (strcmp(type
, VDEV_TYPE_FILE
) == 0)
1393 ret
= check_file(path
, force
, isspare
);
1398 for (c
= 0; c
< children
; c
++)
1399 if (is_device_in_use(config
, child
[c
], force
, replacing
,
1403 if (nvlist_lookup_nvlist_array(nv
, ZPOOL_CONFIG_SPARES
,
1404 &child
, &children
) == 0)
1405 for (c
= 0; c
< children
; c
++)
1406 if (is_device_in_use(config
, child
[c
], force
, replacing
,
1410 if (nvlist_lookup_nvlist_array(nv
, ZPOOL_CONFIG_L2CACHE
,
1411 &child
, &children
) == 0)
1412 for (c
= 0; c
< children
; c
++)
1413 if (is_device_in_use(config
, child
[c
], force
, replacing
,
1421 is_grouping(const char *type
, int *mindev
, int *maxdev
)
1423 if (strncmp(type
, "raidz", 5) == 0) {
1424 const char *p
= type
+ 5;
1430 } else if (*p
== '0') {
1431 return (NULL
); /* no zero prefixes allowed */
1434 nparity
= strtol(p
, &end
, 10);
1435 if (errno
!= 0 || nparity
< 1 || nparity
>= 255 ||
1441 *mindev
= nparity
+ 1;
1444 return (VDEV_TYPE_RAIDZ
);
1450 if (strcmp(type
, "mirror") == 0) {
1453 return (VDEV_TYPE_MIRROR
);
1456 if (strcmp(type
, "spare") == 0) {
1459 return (VDEV_TYPE_SPARE
);
1462 if (strcmp(type
, "log") == 0) {
1465 return (VDEV_TYPE_LOG
);
1468 if (strcmp(type
, "cache") == 0) {
1471 return (VDEV_TYPE_L2CACHE
);
1478 * Construct a syntactically valid vdev specification,
1479 * and ensure that all devices and files exist and can be opened.
1480 * Note: we don't bother freeing anything in the error paths
1481 * because the program is just going to exit anyway.
1484 construct_spec(nvlist_t
*props
, int argc
, char **argv
)
1486 nvlist_t
*nvroot
, *nv
, **top
, **spares
, **l2cache
;
1487 int t
, toplevels
, mindev
, maxdev
, nspares
, nlogs
, nl2cache
;
1490 boolean_t seen_logs
;
1500 seen_logs
= B_FALSE
;
1507 * If it's a mirror or raidz, the subsequent arguments are
1508 * its leaves -- until we encounter the next mirror or raidz.
1510 if ((type
= is_grouping(argv
[0], &mindev
, &maxdev
)) != NULL
) {
1511 nvlist_t
**child
= NULL
;
1512 int c
, children
= 0;
1514 if (strcmp(type
, VDEV_TYPE_SPARE
) == 0) {
1515 if (spares
!= NULL
) {
1516 (void) fprintf(stderr
,
1517 gettext("invalid vdev "
1518 "specification: 'spare' can be "
1519 "specified only once\n"));
1525 if (strcmp(type
, VDEV_TYPE_LOG
) == 0) {
1527 (void) fprintf(stderr
,
1528 gettext("invalid vdev "
1529 "specification: 'log' can be "
1530 "specified only once\n"));
1538 * A log is not a real grouping device.
1539 * We just set is_log and continue.
1544 if (strcmp(type
, VDEV_TYPE_L2CACHE
) == 0) {
1545 if (l2cache
!= NULL
) {
1546 (void) fprintf(stderr
,
1547 gettext("invalid vdev "
1548 "specification: 'cache' can be "
1549 "specified only once\n"));
1556 if (strcmp(type
, VDEV_TYPE_MIRROR
) != 0) {
1557 (void) fprintf(stderr
,
1558 gettext("invalid vdev "
1559 "specification: unsupported 'log' "
1560 "device: %s\n"), type
);
1566 for (c
= 1; c
< argc
; c
++) {
1567 if (is_grouping(argv
[c
], NULL
, NULL
) != NULL
)
1570 child
= realloc(child
,
1571 children
* sizeof (nvlist_t
*));
1574 if ((nv
= make_leaf_vdev(props
, argv
[c
],
1575 B_FALSE
)) == NULL
) {
1576 for (c
= 0; c
< children
- 1; c
++)
1577 nvlist_free(child
[c
]);
1582 child
[children
- 1] = nv
;
1585 if (children
< mindev
) {
1586 (void) fprintf(stderr
, gettext("invalid vdev "
1587 "specification: %s requires at least %d "
1588 "devices\n"), argv
[0], mindev
);
1589 for (c
= 0; c
< children
; c
++)
1590 nvlist_free(child
[c
]);
1595 if (children
> maxdev
) {
1596 (void) fprintf(stderr
, gettext("invalid vdev "
1597 "specification: %s supports no more than "
1598 "%d devices\n"), argv
[0], maxdev
);
1599 for (c
= 0; c
< children
; c
++)
1600 nvlist_free(child
[c
]);
1608 if (strcmp(type
, VDEV_TYPE_SPARE
) == 0) {
1612 } else if (strcmp(type
, VDEV_TYPE_L2CACHE
) == 0) {
1614 nl2cache
= children
;
1617 verify(nvlist_alloc(&nv
, NV_UNIQUE_NAME
,
1619 verify(nvlist_add_string(nv
, ZPOOL_CONFIG_TYPE
,
1621 verify(nvlist_add_uint64(nv
,
1622 ZPOOL_CONFIG_IS_LOG
, is_log
) == 0);
1623 if (strcmp(type
, VDEV_TYPE_RAIDZ
) == 0) {
1624 verify(nvlist_add_uint64(nv
,
1625 ZPOOL_CONFIG_NPARITY
,
1628 verify(nvlist_add_nvlist_array(nv
,
1629 ZPOOL_CONFIG_CHILDREN
, child
,
1632 for (c
= 0; c
< children
; c
++)
1633 nvlist_free(child
[c
]);
1638 * We have a device. Pass off to make_leaf_vdev() to
1639 * construct the appropriate nvlist describing the vdev.
1641 if ((nv
= make_leaf_vdev(props
, argv
[0],
1652 top
= realloc(top
, toplevels
* sizeof (nvlist_t
*));
1655 top
[toplevels
- 1] = nv
;
1658 if (toplevels
== 0 && nspares
== 0 && nl2cache
== 0) {
1659 (void) fprintf(stderr
, gettext("invalid vdev "
1660 "specification: at least one toplevel vdev must be "
1665 if (seen_logs
&& nlogs
== 0) {
1666 (void) fprintf(stderr
, gettext("invalid vdev specification: "
1667 "log requires at least 1 device\n"));
1672 * Finally, create nvroot and add all top-level vdevs to it.
1674 verify(nvlist_alloc(&nvroot
, NV_UNIQUE_NAME
, 0) == 0);
1675 verify(nvlist_add_string(nvroot
, ZPOOL_CONFIG_TYPE
,
1676 VDEV_TYPE_ROOT
) == 0);
1677 verify(nvlist_add_nvlist_array(nvroot
, ZPOOL_CONFIG_CHILDREN
,
1678 top
, toplevels
) == 0);
1680 verify(nvlist_add_nvlist_array(nvroot
, ZPOOL_CONFIG_SPARES
,
1681 spares
, nspares
) == 0);
1683 verify(nvlist_add_nvlist_array(nvroot
, ZPOOL_CONFIG_L2CACHE
,
1684 l2cache
, nl2cache
) == 0);
1687 for (t
= 0; t
< toplevels
; t
++)
1688 nvlist_free(top
[t
]);
1689 for (t
= 0; t
< nspares
; t
++)
1690 nvlist_free(spares
[t
]);
1691 for (t
= 0; t
< nl2cache
; t
++)
1692 nvlist_free(l2cache
[t
]);
1702 split_mirror_vdev(zpool_handle_t
*zhp
, char *newname
, nvlist_t
*props
,
1703 splitflags_t flags
, int argc
, char **argv
)
1705 nvlist_t
*newroot
= NULL
, **child
;
1709 if ((newroot
= construct_spec(props
, argc
, argv
)) == NULL
) {
1710 (void) fprintf(stderr
, gettext("Unable to build a "
1711 "pool from the specified devices\n"));
1715 if (!flags
.dryrun
&& make_disks(zhp
, newroot
) != 0) {
1716 nvlist_free(newroot
);
1720 /* avoid any tricks in the spec */
1721 verify(nvlist_lookup_nvlist_array(newroot
,
1722 ZPOOL_CONFIG_CHILDREN
, &child
, &children
) == 0);
1723 for (c
= 0; c
< children
; c
++) {
1728 verify(nvlist_lookup_string(child
[c
],
1729 ZPOOL_CONFIG_PATH
, &path
) == 0);
1730 if ((type
= is_grouping(path
, &min
, &max
)) != NULL
) {
1731 (void) fprintf(stderr
, gettext("Cannot use "
1732 "'%s' as a device for splitting\n"), type
);
1733 nvlist_free(newroot
);
1739 if (zpool_vdev_split(zhp
, newname
, &newroot
, props
, flags
) != 0) {
1740 nvlist_free(newroot
);
1748 * Get and validate the contents of the given vdev specification. This ensures
1749 * that the nvlist returned is well-formed, that all the devices exist, and that
1750 * they are not currently in use by any other known consumer. The 'poolconfig'
1751 * parameter is the current configuration of the pool when adding devices
1752 * existing pool, and is used to perform additional checks, such as changing the
1753 * replication level of the pool. It can be 'NULL' to indicate that this is a
1754 * new pool. The 'force' flag controls whether devices should be forcefully
1755 * added, even if they appear in use.
1758 make_root_vdev(zpool_handle_t
*zhp
, nvlist_t
*props
, int force
, int check_rep
,
1759 boolean_t replacing
, boolean_t dryrun
, int argc
, char **argv
)
1762 nvlist_t
*poolconfig
= NULL
;
1766 * Construct the vdev specification. If this is successful, we know
1767 * that we have a valid specification, and that all devices can be
1770 if ((newroot
= construct_spec(props
, argc
, argv
)) == NULL
)
1773 if (zhp
&& ((poolconfig
= zpool_get_config(zhp
, NULL
)) == NULL
)) {
1774 nvlist_free(newroot
);
1779 * Validate each device to make sure that its not shared with another
1780 * subsystem. We do this even if 'force' is set, because there are some
1781 * uses (such as a dedicated dump device) that even '-f' cannot
1784 if (is_device_in_use(poolconfig
, newroot
, force
, replacing
, B_FALSE
)) {
1785 nvlist_free(newroot
);
1790 * Check the replication level of the given vdevs and report any errors
1791 * found. We include the existing pool spec, if any, as we need to
1792 * catch changes against the existing replication level.
1794 if (check_rep
&& check_replication(poolconfig
, newroot
) != 0) {
1795 nvlist_free(newroot
);
1800 * Run through the vdev specification and label any whole disks found.
1802 if (!dryrun
&& make_disks(zhp
, newroot
) != 0) {
1803 nvlist_free(newroot
);