NAME

       zpool-remove — remove devices from ZFS storage pool

SYNOPSIS

       zpool remove [-npw] pool device…
       zpool remove -s pool

DESCRIPTION

       zpool remove [-npw] pool device…
               Removes  the  specified  device  from the pool.  This command supports removing hot spare, cache,
               log, and both mirrored and non-redundant primary top-level vdevs,  including  dedup  and  special
               vdevs.

               Top-level  vdevs  can  only  be  removed if the primary pool storage does not contain a top-level
               raidz vdev, all top-level vdevs have the same  sector  size,  and  the  keys  for  all  encrypted
               datasets are loaded.

               Removing  a  top-level vdev reduces the total amount of space in the storage pool.  The specified
               device will be evacuated by copying all allocated space from it to the other devices in the pool.
               In this case, the zpool remove command initiates the removal and returns,  while  the  evacuation
               continues in the background.  The removal progress can be monitored with zpool status.  If an I/O
               error is encountered during the removal process it will be cancelled.  The device_removal feature
               flag must be enabled to remove a top-level vdev, see zpool-features(7).

               A  mirrored top-level device (log or data) can be removed by specifying the top- level mirror for
               the same.  Non-log devices or data devices that are part  of  a  mirrored  configuration  can  be
               removed using the zpool detach command.

               -n      Do  not  actually  perform the removal ("No-op").  Instead, print the estimated amount of
                       memory that will be used by the mapping table  after  the  removal  completes.   This  is
                       nonzero only for top-level vdevs.

               -p      Used in conjunction with the -n flag, displays numbers as parsable (exact) values.

               -w      Waits until the removal has completed before returning.

       zpool remove -s pool
               Stops and cancels an in-progress removal of a top-level vdev.

EXAMPLES

   Example 1: Removing a Mirrored top-level (Log or Data) Device
       The  following  commands  remove  the  mirrored  log  device  mirror-2 and mirrored top-level data device
       mirror-1.

       Given this configuration:
               pool: tank
              state: ONLINE
              scrub: none requested
             config:

                      NAME        STATE     READ WRITE CKSUM
                      tank        ONLINE       0     0     0
                        mirror-0  ONLINE       0     0     0
                          sda     ONLINE       0     0     0
                          sdb     ONLINE       0     0     0
                        mirror-1  ONLINE       0     0     0
                          sdc     ONLINE       0     0     0
                          sdd     ONLINE       0     0     0
                      logs
                        mirror-2  ONLINE       0     0     0
                          sde     ONLINE       0     0     0
                          sdf     ONLINE       0     0     0

       The command to remove the mirrored log mirror-2 is:
             # zpool remove tank mirror-2

       The command to remove the mirrored data mirror-1 is:
             # zpool remove tank mirror-1

SEE ALSO

       zpool-add(8), zpool-detach(8), zpool-labelclear(8), zpool-offline(8), zpool-replace(8), zpool-split(8)

OpenZFS                                          March 16, 2022                                  ZPOOL-REMOVE(8)