zpool-offline — take physical devices offline in ZFS storage pool

zpooloffline [--power|[-ft]] pooldevice…
               Takes  the specified physical device offline.  While the device is offline, no attempt is made to
               read or write to the device.  This command is not applicable to spares.

               --power
                       Power off the device's slot in the storage enclosure.  This flag currently works on Linux
                       only

               -f      Force fault.  Instead of offlining the disk, put it into a faulted state.  The fault will
                       persist across imports unless the -t flag was specified.

               -t      Temporary.  Upon reboot, the specified physical device reverts to its previous state.

       zpoolonline [--power] [-e] pooldevice…
               Brings the specified physical device online.  This command is not applicable to spares.

               --power
                       Power on the device's slot in the storage enclosure and wait for the device  to  show  up
                       before  attempting to online it.  Alternatively, you can set the ZPOOL_AUTO_POWER_ON_SLOT
                       environment variable to always enable this behavior.  This flag currently works on  Linux
                       only

               -e      Expand the device to use all available space.  If the device is part of a mirror or raidz
                       then all devices must be expanded before the new space will become available to the pool.

       zpool-offline — take physical devices offline in ZFS storage pool

zpool-detach(8), zpool-remove(8), zpool-reopen(8), zpool-resilver(8)

OpenZFS                                          August 9, 2019                                 ZPOOL-OFFLINE(8)

zpooloffline [--power|[-ft]] pooldevice…
       zpoolonline [--power] [-e] pooldevice…