zpool

List all pools

$ zpool list

$ zpool status [pool]

$ sudo zpool create [pool] mirror [/dev/sda] [/dev/sdb]

$ sudo zpool create [pool] raidz [/dev/sda] [/dev/sdb] [/dev/sdc]

$ sudo zpool add [pool] [/dev/sdc]

$ sudo zpool scrub [pool]

$ sudo zpool import [pool]

$ sudo zpool export [pool]

zpool command [options] [arguments]

zpool manages ZFS storage pools. A pool is composed of virtual devices (vdevs) which can be single disks, mirrors, or RAID-Z configurations. Pools provide the underlying storage that ZFS datasets use.
Vdev types:
- mirror - Data mirrored across 2+ disks
- raidz, raidz2, raidz3 - RAID-Z with 1/2/3 parity disks
- spare - Hot spare disk
- cache - L2ARC read cache (SSD)
- log - ZIL write log (SSD)
Scrubbing verifies all data checksums and repairs errors using redundant copies. Regular scrubs are essential for data integrity.

create pool vdev...

Create new storage pool

Destroy pool and all data

Add devices to pool

Remove device from pool

List pools and properties

Show detailed status

Display I/O statistics

Verify data integrity

Import pool(s)

Export pool for transport

Upgrade pool version

Show pool command history

Attach mirror to device

Detach mirror device

Replace disk in pool

Bring device online/offline

Most operations require root privileges.
Pool destruction is permanent. zpool destroy deletes all data.
RAID-Z cannot be expanded by adding disks to an existing vdev (as of OpenZFS 2.2, expansion is possible on some platforms).
Regular scrubs are critical. ZFS detects but cannot repair single-disk pool errors.

zfs(8), zdb(8), zpool-status(8)