ZPOOL-SPLIT(8)          FreeBSD System Manager's Manual         ZPOOL-SPLIT(8)

NAME
     zpool-split - split devices off ZFS storage pool, creating new pool

SYNOPSIS
     zpool split [-gLlnP] [-o property=value]<?> [-R root] pool newpool
           [device]<?>

DESCRIPTION
     Splits devices off pool creating newpool.  All vdevs in pool must be
     mirrors and the pool must not be in the process of resilvering.  At the
     time of the split, newpool will be a replica of pool.  By default, the
     last device in each mirror is split from pool to create newpool.

     The optional device specification causes the specified device(s) to be
     included in the new pool and, should any devices remain unspecified, the
     last device in each mirror is used as would be by default.

     -g      Display vdev GUIDs instead of the normal device names.  These
             GUIDs can be used in place of device names for the zpool
             detach/offline/remove/replace commands.

     -L      Display real paths for vdevs resolving all symbolic links.  This
             can be used to look up the current block device name regardless
             of the /dev/disk/ path used to open it.

     -l      Indicates that this command will request encryption keys for all
             encrypted datasets it attempts to mount as it is bringing the new
             pool online.  Note that if any datasets have keylocation=prompt,
             this command will block waiting for the keys to be entered.
             Without this flag, encrypted datasets will be left unavailable
             until the keys are loaded.

     -n      Do a dry-run ("No-op") split: do not actually perform it.  Print
             out the expected configuration of newpool.

     -P      Display full paths for vdevs instead of only the last component
             of the path.  This can be used in conjunction with the -L flag.

     -o property=value
             Sets the specified property for newpool.  See the zpoolprops(7)
             manual page for more information on the available pool
             properties.

     -R root
             Set altroot for newpool to root and automatically import it.

SEE ALSO
     zpool-import(8), zpool-list(8), zpool-remove(8)

FreeBSD 13.1-RELEASE-p6          June 2, 2021          FreeBSD 13.1-RELEASE-p6