man/man8/zpool.8

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  21 .\" Copyright (c) 2007, Sun Microsystems, Inc. All Rights Reserved.
  22 .\" Copyright (c) 2012, 2018 by Delphix. All rights reserved.
  23 .\" Copyright (c) 2012 Cyril Plisko. All Rights Reserved.
  24 .\" Copyright (c) 2017 Datto Inc.
  25 .\" Copyright (c) 2018 George Melikov. All Rights Reserved.
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  29 .Dd March 16, 2022
  30 .Dt ZPOOL 8
  31 .Os
  32 .
  33 .Sh NAME
  34 .Nm zpool
  35 .Nd configure ZFS storage pools
  36 .Sh SYNOPSIS
  37 .Nm
  38 .Fl ?V
  39 .Nm
  40 .Cm version
  41 .Nm
  42 .Cm subcommand
  43 .Op Ar arguments
  44 .
  45 .Sh DESCRIPTION
  46 The
  47 .Nm
  48 command configures ZFS storage pools.
  49 A storage pool is a collection of devices that provides physical storage and
  50 data replication for ZFS datasets.
  51 All datasets within a storage pool share the same space.
  52 See
  53 .Xr zfs 8
  54 for information on managing datasets.
  55 .Pp
  56 For an overview of creating and managing ZFS storage pools see the
  57 .Xr zpoolconcepts 7
  58 manual page.
  59 .
  60 .Sh SUBCOMMANDS
  61 All subcommands that modify state are logged persistently to the pool in their
  62 original form.
  63 .Pp
  64 The
  65 .Nm
  66 command provides subcommands to create and destroy storage pools, add capacity
  67 to storage pools, and provide information about the storage pools.
  68 The following subcommands are supported:
  69 .Bl -tag -width Ds
  70 .It Xo
  71 .Nm
  72 .Fl ?\&
  73 .Xc
  74 Displays a help message.
  75 .It Xo
  76 .Nm
  77 .Fl V , -version
  78 .Xc
  79 .It Xo
  80 .Nm
  81 .Cm version
  82 .Xc
  83 Displays the software version of the
  84 .Nm
  85 userland utility and the ZFS kernel module.
  86 .El
  87 .
  88 .Ss Creation
  89 .Bl -tag -width Ds
  90 .It Xr zpool-create 8
  91 Creates a new storage pool containing the virtual devices specified on the
  92 command line.
  93 .It Xr zpool-initialize 8
  94 Begins initializing by writing to all unallocated regions on the specified
  95 devices, or all eligible devices in the pool if no individual devices are
  96 specified.
  97 .El
  98 .
  99 .Ss Destruction
 100 .Bl -tag -width Ds
 101 .It Xr zpool-destroy 8
 102 Destroys the given pool, freeing up any devices for other use.
 103 .It Xr zpool-labelclear 8
 104 Removes ZFS label information from the specified
 105 .Ar device .
 106 .El
 107 .
 108 .Ss Virtual Devices
 109 .Bl -tag -width Ds
 110 .It Xo
 111 .Xr zpool-attach 8 Ns / Ns Xr zpool-detach 8
 112 .Xc
 113 Converts a non-redundant disk into a mirror, or increases
 114 the redundancy level of an existing mirror
 115 .Cm ( attach Ns ), or performs the inverse operation (
 116 .Cm detach Ns ).
 117 .It Xo
 118 .Xr zpool-add 8 Ns / Ns Xr zpool-remove 8
 119 .Xc
 120 Adds the specified virtual devices to the given pool,
 121 or removes the specified device from the pool.
 122 .It Xr zpool-replace 8
 123 Replaces an existing device (which may be faulted) with a new one.
 124 .It Xr zpool-split 8
 125 Creates a new pool by splitting all mirrors in an existing pool (which decreases
 126 its redundancy).
 127 .El
 128 .
 129 .Ss Properties
 130 Available pool properties listed in the
 131 .Xr zpoolprops 7
 132 manual page.
 133 .Bl -tag -width Ds
 134 .It Xr zpool-list 8
 135 Lists the given pools along with a health status and space usage.
 136 .It Xo
 137 .Xr zpool-get 8 Ns / Ns Xr zpool-set 8
 138 .Xc
 139 Retrieves the given list of properties
 140 .Po
 141 or all properties if
 142 .Sy all
 143 is used
 144 .Pc
 145 for the specified storage pool(s).
 146 .El
 147 .
 148 .Ss Monitoring
 149 .Bl -tag -width Ds
 150 .It Xr zpool-status 8
 151 Displays the detailed health status for the given pools.
 152 .It Xr zpool-iostat 8
 153 Displays logical I/O statistics for the given pools/vdevs.
 154 Physical I/O operations may be observed via
 155 .Xr iostat 1 .
 156 .It Xr zpool-events 8
 157 Lists all recent events generated by the ZFS kernel modules.
 158 These events are consumed by the
 159 .Xr zed 8
 160 and used to automate administrative tasks such as replacing a failed device
 161 with a hot spare.
 162 That manual page also describes the subclasses and event payloads
 163 that can be generated.
 164 .It Xr zpool-history 8
 165 Displays the command history of the specified pool(s) or all pools if no pool is
 166 specified.
 167 .El
 168 .
 169 .Ss Maintenance
 170 .Bl -tag -width Ds
 171 .It Xr zpool-scrub 8
 172 Begins a scrub or resumes a paused scrub.
 173 .It Xr zpool-checkpoint 8
 174 Checkpoints the current state of
 175 .Ar pool ,
 176 which can be later restored by
 177 .Nm zpool Cm import Fl -rewind-to-checkpoint .
 178 .It Xr zpool-trim 8
 179 Initiates an immediate on-demand TRIM operation for all of the free space in a
 180 pool.
 181 This operation informs the underlying storage devices of all blocks
 182 in the pool which are no longer allocated and allows thinly provisioned
 183 devices to reclaim the space.
 184 .It Xr zpool-sync 8
 185 This command forces all in-core dirty data to be written to the primary
 186 pool storage and not the ZIL.
 187 It will also update administrative information including quota reporting.
 188 Without arguments,
 189 .Nm zpool Cm sync
 190 will sync all pools on the system.
 191 Otherwise, it will sync only the specified pool(s).
 192 .It Xr zpool-upgrade 8
 193 Manage the on-disk format version of storage pools.
 194 .It Xr zpool-wait 8
 195 Waits until all background activity of the given types has ceased in the given
 196 pool.
 197 .El
 198 .
 199 .Ss Fault Resolution
 200 .Bl -tag -width Ds
 201 .It Xo
 202 .Xr zpool-offline 8 Ns / Ns Xr zpool-online 8
 203 .Xc
 204 Takes the specified physical device offline or brings it online.
 205 .It Xr zpool-resilver 8
 206 Starts a resilver.
 207 If an existing resilver is already running it will be restarted from the
 208 beginning.
 209 .It Xr zpool-reopen 8
 210 Reopen all the vdevs associated with the pool.
 211 .It Xr zpool-clear 8
 212 Clears device errors in a pool.
 213 .El
 214 .
 215 .Ss Import & Export
 216 .Bl -tag -width Ds
 217 .It Xr zpool-import 8
 218 Make disks containing ZFS storage pools available for use on the system.
 219 .It Xr zpool-export 8
 220 Exports the given pools from the system.
 221 .It Xr zpool-reguid 8
 222 Generates a new unique identifier for the pool.
 223 .El
 224 .
 225 .Sh EXIT STATUS
 226 The following exit values are returned:
 227 .Bl -tag -compact -offset 4n -width "a"
 228 .It Sy 0
 229 Successful completion.
 230 .It Sy 1
 231 An error occurred.
 232 .It Sy 2
 233 Invalid command line options were specified.
 234 .El
 235 .
 236 .Sh EXAMPLES
 237 .\" Examples 1, 2, 3, 4, 12, 13 are shared with zpool-create.8.
 238 .\" Examples 6, 14 are shared with zpool-add.8.
 239 .\" Examples 7, 16 are shared with zpool-list.8.
 240 .\" Examples 8 are shared with zpool-destroy.8.
 241 .\" Examples 9 are shared with zpool-export.8.
 242 .\" Examples 10 are shared with zpool-import.8.
 243 .\" Examples 11 are shared with zpool-upgrade.8.
 244 .\" Examples 15 are shared with zpool-remove.8.
 245 .\" Examples 17 are shared with zpool-status.8.
 246 .\" Examples 14, 17 are also shared with zpool-iostat.8.
 247 .\" Make sure to update them omnidirectionally
 248 .Ss Example 1 : No Creating a RAID-Z Storage Pool
 249 The following command creates a pool with a single raidz root vdev that
 250 consists of six disks:
 251 .Dl # Nm zpool Cm create Ar tank Sy raidz Pa sda sdb sdc sdd sde sdf
 252 .
 253 .Ss Example 2 : No Creating a Mirrored Storage Pool
 254 The following command creates a pool with two mirrors, where each mirror
 255 contains two disks:
 256 .Dl # Nm zpool Cm create Ar tank Sy mirror Pa sda sdb Sy mirror Pa sdc sdd
 257 .
 258 .Ss Example 3 : No Creating a ZFS Storage Pool by Using Partitions
 259 The following command creates a non-redundant pool using two disk partitions:
 260 .Dl # Nm zpool Cm create Ar tank Pa sda1 sdb2
 261 .
 262 .Ss Example 4 : No Creating a ZFS Storage Pool by Using Files
 263 The following command creates a non-redundant pool using files.
 264 While not recommended, a pool based on files can be useful for experimental
 265 purposes.
 266 .Dl # Nm zpool Cm create Ar tank Pa /path/to/file/a /path/to/file/b
 267 .
 268 .Ss Example 5 : No Making a non-mirrored ZFS Storage Pool mirrored
 269 The following command converts an existing single device
 270 .Ar sda
 271 into a mirror by attaching a second device to it,
 272 .Ar sdb .
 273 .Dl # Nm zpool Cm attach Ar tank Pa sda sdb
 274 .
 275 .Ss Example 6 : No Adding a Mirror to a ZFS Storage Pool
 276 The following command adds two mirrored disks to the pool
 277 .Ar tank ,
 278 assuming the pool is already made up of two-way mirrors.
 279 The additional space is immediately available to any datasets within the pool.
 280 .Dl # Nm zpool Cm add Ar tank Sy mirror Pa sda sdb
 281 .
 282 .Ss Example 7 : No Listing Available ZFS Storage Pools
 283 The following command lists all available pools on the system.
 284 In this case, the pool
 285 .Ar zion
 286 is faulted due to a missing device.
 287 The results from this command are similar to the following:
 288 .Bd -literal -compact -offset Ds
 289 .No # Nm zpool Cm list
 290 NAME    SIZE  ALLOC   FREE  EXPANDSZ   FRAG    CAP  DEDUP  HEALTH  ALTROOT
 291 rpool  19.9G  8.43G  11.4G         -    33%    42%  1.00x  ONLINE  -
 292 tank   61.5G  20.0G  41.5G         -    48%    32%  1.00x  ONLINE  -
 293 zion       -      -      -         -      -      -      -  FAULTED -
 294 .Ed
 295 .
 296 .Ss Example 8 : No Destroying a ZFS Storage Pool
 297 The following command destroys the pool
 298 .Ar tank
 299 and any datasets contained within:
 300 .Dl # Nm zpool Cm destroy Fl f Ar tank
 301 .
 302 .Ss Example 9 : No Exporting a ZFS Storage Pool
 303 The following command exports the devices in pool
 304 .Ar tank
 305 so that they can be relocated or later imported:
 306 .Dl # Nm zpool Cm export Ar tank
 307 .
 308 .Ss Example 10 : No Importing a ZFS Storage Pool
 309 The following command displays available pools, and then imports the pool
 310 .Ar tank
 311 for use on the system.
 312 The results from this command are similar to the following:
 313 .Bd -literal -compact -offset Ds
 314 .No # Nm zpool Cm import
 315   pool: tank
 316     id: 15451357997522795478
 317  state: ONLINE
 318 action: The pool can be imported using its name or numeric identifier.
 319 config:
 320
 321         tank        ONLINE
 322           mirror    ONLINE
 323             sda     ONLINE
 324             sdb     ONLINE
 325
 326 .No # Nm zpool Cm import Ar tank
 327 .Ed
 328 .
 329 .Ss Example 11 : No Upgrading All ZFS Storage Pools to the Current Version
 330 The following command upgrades all ZFS Storage pools to the current version of
 331 the software:
 332 .Bd -literal -compact -offset Ds
 333 .No # Nm zpool Cm upgrade Fl a
 334 This system is currently running ZFS version 2.
 335 .Ed
 336 .
 337 .Ss Example 12 : No Managing Hot Spares
 338 The following command creates a new pool with an available hot spare:
 339 .Dl # Nm zpool Cm create Ar tank Sy mirror Pa sda sdb Sy spare Pa sdc
 340 .Pp
 341 If one of the disks were to fail, the pool would be reduced to the degraded
 342 state.
 343 The failed device can be replaced using the following command:
 344 .Dl # Nm zpool Cm replace Ar tank Pa sda sdd
 345 .Pp
 346 Once the data has been resilvered, the spare is automatically removed and is
 347 made available for use should another device fail.
 348 The hot spare can be permanently removed from the pool using the following
 349 command:
 350 .Dl # Nm zpool Cm remove Ar tank Pa sdc
 351 .
 352 .Ss Example 13 : No Creating a ZFS Pool with Mirrored Separate Intent Logs
 353 The following command creates a ZFS storage pool consisting of two, two-way
 354 mirrors and mirrored log devices:
 355 .Dl # Nm zpool Cm create Ar pool Sy mirror Pa sda sdb Sy mirror Pa sdc sdd Sy log mirror Pa sde sdf
 356 .
 357 .Ss Example 14 : No Adding Cache Devices to a ZFS Pool
 358 The following command adds two disks for use as cache devices to a ZFS storage
 359 pool:
 360 .Dl # Nm zpool Cm add Ar pool Sy cache Pa sdc sdd
 361 .Pp
 362 Once added, the cache devices gradually fill with content from main memory.
 363 Depending on the size of your cache devices, it could take over an hour for
 364 them to fill.
 365 Capacity and reads can be monitored using the
 366 .Cm iostat
 367 subcommand as follows:
 368 .Dl # Nm zpool Cm iostat Fl v Ar pool 5
 369 .
 370 .Ss Example 15 : No Removing a Mirrored top-level (Log or Data) Device
 371 The following commands remove the mirrored log device
 372 .Sy mirror-2
 373 and mirrored top-level data device
 374 .Sy mirror-1 .
 375 .Pp
 376 Given this configuration:
 377 .Bd -literal -compact -offset Ds
 378   pool: tank
 379  state: ONLINE
 380  scrub: none requested
 381 config:
 382
 383          NAME        STATE     READ WRITE CKSUM
 384          tank        ONLINE       0     0     0
 385            mirror-0  ONLINE       0     0     0
 386              sda     ONLINE       0     0     0
 387              sdb     ONLINE       0     0     0
 388            mirror-1  ONLINE       0     0     0
 389              sdc     ONLINE       0     0     0
 390              sdd     ONLINE       0     0     0
 391          logs
 392            mirror-2  ONLINE       0     0     0
 393              sde     ONLINE       0     0     0
 394              sdf     ONLINE       0     0     0
 395 .Ed
 396 .Pp
 397 The command to remove the mirrored log
 398 .Ar mirror-2 No is :
 399 .Dl # Nm zpool Cm remove Ar tank mirror-2
 400 .Pp
 401 The command to remove the mirrored data
 402 .Ar mirror-1 No is :
 403 .Dl # Nm zpool Cm remove Ar tank mirror-1
 404 .
 405 .Ss Example 16 : No Displaying expanded space on a device
 406 The following command displays the detailed information for the pool
 407 .Ar data .
 408 This pool is comprised of a single raidz vdev where one of its devices
 409 increased its capacity by 10 GiB.
 410 In this example, the pool will not be able to utilize this extra capacity until
 411 all the devices under the raidz vdev have been expanded.
 412 .Bd -literal -compact -offset Ds
 413 .No # Nm zpool Cm list Fl v Ar data
 414 NAME         SIZE  ALLOC   FREE  EXPANDSZ   FRAG    CAP  DEDUP  HEALTH  ALTROOT
 415 data        23.9G  14.6G  9.30G         -    48%    61%  1.00x  ONLINE  -
 416   raidz1    23.9G  14.6G  9.30G         -    48%
 417     sda         -      -      -         -      -
 418     sdb         -      -      -       10G      -
 419     sdc         -      -      -         -      -
 420 .Ed
 421 .
 422 .Ss Example 17 : No Adding output columns
 423 Additional columns can be added to the
 424 .Nm zpool Cm status No and Nm zpool Cm iostat No output with Fl c .
 425 .Bd -literal -compact -offset Ds
 426 .No # Nm zpool Cm status Fl c Pa vendor , Ns Pa model , Ns Pa size
 427    NAME     STATE  READ WRITE CKSUM vendor  model        size
 428    tank     ONLINE 0    0     0
 429    mirror-0 ONLINE 0    0     0
 430    U1       ONLINE 0    0     0     SEAGATE ST8000NM0075 7.3T
 431    U10      ONLINE 0    0     0     SEAGATE ST8000NM0075 7.3T
 432    U11      ONLINE 0    0     0     SEAGATE ST8000NM0075 7.3T
 433    U12      ONLINE 0    0     0     SEAGATE ST8000NM0075 7.3T
 434    U13      ONLINE 0    0     0     SEAGATE ST8000NM0075 7.3T
 435    U14      ONLINE 0    0     0     SEAGATE ST8000NM0075 7.3T
 436
 437 .No # Nm zpool Cm iostat Fl vc Pa size
 438               capacity     operations     bandwidth
 439 pool        alloc   free   read  write   read  write  size
 440 ----------  -----  -----  -----  -----  -----  -----  ----
 441 rpool       14.6G  54.9G      4     55   250K  2.69M
 442   sda1      14.6G  54.9G      4     55   250K  2.69M   70G
 443 ----------  -----  -----  -----  -----  -----  -----  ----
 444 .Ed
 445 .
 446 .Sh ENVIRONMENT VARIABLES
 447 .Bl -tag -compact -width "ZPOOL_STATUS_NON_NATIVE_ASHIFT_IGNORE"
 448 .It Sy ZFS_ABORT
 449 Cause
 450 .Nm
 451 to dump core on exit for the purposes of running
 452 .Sy ::findleaks .
 453 .It Sy ZFS_COLOR
 454 Use ANSI color in
 455 .Nm zpool Cm status
 456 and
 457 .Nm zpool Cm iostat
 458 output.
 459 .It Sy ZPOOL_AUTO_POWER_ON_SLOT
 460 Automatically attempt to turn on the drives enclosure slot power to a drive when
 461 running the
 462 .Nm zpool Cm online
 463 or
 464 .Nm zpool Cm clear
 465 commands.
 466 This has the same effect as passing the
 467 .Fl -power
 468 option to those commands.
 469 .It Sy ZPOOL_POWER_ON_SLOT_TIMEOUT_MS
 470 The maximum time in milliseconds to wait for a slot power sysfs value
 471 to return the correct value after writing it.
 472 For example, after writing "on" to the sysfs enclosure slot power_control file,
 473 it can take some time for the enclosure to power down the slot and return
 474 "on" if you read back the 'power_control' value.
 475 Defaults to 30 seconds (30000ms) if not set.
 476 .It Sy ZPOOL_IMPORT_PATH
 477 The search path for devices or files to use with the pool.
 478 This is a colon-separated list of directories in which
 479 .Nm
 480 looks for device nodes and files.
 481 Similar to the
 482 .Fl d
 483 option in
 484 .Nm zpool import .
 485 .It Sy ZPOOL_IMPORT_UDEV_TIMEOUT_MS
 486 The maximum time in milliseconds that
 487 .Nm zpool import
 488 will wait for an expected device to be available.
 489 .It Sy ZPOOL_STATUS_NON_NATIVE_ASHIFT_IGNORE
 490 If set, suppress warning about non-native vdev ashift in
 491 .Nm zpool Cm status .
 492 The value is not used, only the presence or absence of the variable matters.
 493 .It Sy ZPOOL_VDEV_NAME_GUID
 494 Cause
 495 .Nm
 496 subcommands to output vdev guids by default.
 497 This behavior is identical to the
 498 .Nm zpool Cm status Fl g
 499 command line option.
 500 .It Sy ZPOOL_VDEV_NAME_FOLLOW_LINKS
 501 Cause
 502 .Nm
 503 subcommands to follow links for vdev names by default.
 504 This behavior is identical to the
 505 .Nm zpool Cm status Fl L
 506 command line option.
 507 .It Sy ZPOOL_VDEV_NAME_PATH
 508 Cause
 509 .Nm
 510 subcommands to output full vdev path names by default.
 511 This behavior is identical to the
 512 .Nm zpool Cm status Fl P
 513 command line option.
 514 .It Sy ZFS_VDEV_DEVID_OPT_OUT
 515 Older OpenZFS implementations had issues when attempting to display pool
 516 config vdev names if a
 517 .Sy devid
 518 NVP value is present in the pool's config.
 519 .Pp
 520 For example, a pool that originated on illumos platform would have a
 521 .Sy devid
 522 value in the config and
 523 .Nm zpool Cm status
 524 would fail when listing the config.
 525 This would also be true for future Linux-based pools.
 526 .Pp
 527 A pool can be stripped of any
 528 .Sy devid
 529 values on import or prevented from adding
 530 them on
 531 .Nm zpool Cm create
 532 or
 533 .Nm zpool Cm add
 534 by setting
 535 .Sy ZFS_VDEV_DEVID_OPT_OUT .
 536 .Pp
 537 .It Sy ZPOOL_SCRIPTS_AS_ROOT
 538 Allow a privileged user to run
 539 .Nm zpool Cm status Ns / Ns Cm iostat Fl c .
 540 Normally, only unprivileged users are allowed to run
 541 .Fl c .
 542 .It Sy ZPOOL_SCRIPTS_PATH
 543 The search path for scripts when running
 544 .Nm zpool Cm status Ns / Ns Cm iostat Fl c .
 545 This is a colon-separated list of directories and overrides the default
 546 .Pa ~/.zpool.d
 547 and
 548 .Pa /etc/zfs/zpool.d
 549 search paths.
 550 .It Sy ZPOOL_SCRIPTS_ENABLED
 551 Allow a user to run
 552 .Nm zpool Cm status Ns / Ns Cm iostat Fl c .
 553 If
 554 .Sy ZPOOL_SCRIPTS_ENABLED
 555 is not set, it is assumed that the user is allowed to run
 556 .Nm zpool Cm status Ns / Ns Cm iostat Fl c .
 557 .\" Shared with zfs.8
 558 .It Sy ZFS_MODULE_TIMEOUT
 559 Time, in seconds, to wait for
 560 .Pa /dev/zfs
 561 to appear.
 562 Defaults to
 563 .Sy 10 ,
 564 max
 565 .Sy 600 Pq 10 minutes .
 566 If
 567 .Pf < Sy 0 ,
 568 wait forever; if
 569 .Sy 0 ,
 570 don't wait.
 571 .El
 572 .
 573 .Sh INTERFACE STABILITY
 574 .Sy Evolving
 575 .
 576 .Sh SEE ALSO
 577 .Xr zfs 4 ,
 578 .Xr zpool-features 7 ,
 579 .Xr zpoolconcepts 7 ,
 580 .Xr zpoolprops 7 ,
 581 .Xr zed 8 ,
 582 .Xr zfs 8 ,
 583 .Xr zpool-add 8 ,
 584 .Xr zpool-attach 8 ,
 585 .Xr zpool-checkpoint 8 ,
 586 .Xr zpool-clear 8 ,
 587 .Xr zpool-create 8 ,
 588 .Xr zpool-destroy 8 ,
 589 .Xr zpool-detach 8 ,
 590 .Xr zpool-events 8 ,
 591 .Xr zpool-export 8 ,
 592 .Xr zpool-get 8 ,
 593 .Xr zpool-history 8 ,
 594 .Xr zpool-import 8 ,
 595 .Xr zpool-initialize 8 ,
 596 .Xr zpool-iostat 8 ,
 597 .Xr zpool-labelclear 8 ,
 598 .Xr zpool-list 8 ,
 599 .Xr zpool-offline 8 ,
 600 .Xr zpool-online 8 ,
 601 .Xr zpool-reguid 8 ,
 602 .Xr zpool-remove 8 ,
 603 .Xr zpool-reopen 8 ,
 604 .Xr zpool-replace 8 ,
 605 .Xr zpool-resilver 8 ,
 606 .Xr zpool-scrub 8 ,
 607 .Xr zpool-set 8 ,
 608 .Xr zpool-split 8 ,
 609 .Xr zpool-status 8 ,
 610 .Xr zpool-sync 8 ,
 611 .Xr zpool-trim 8 ,
 612 .Xr zpool-upgrade 8 ,
 613 .Xr zpool-wait 8