Show File System Info

  • List all ZFS file systems
zfs list
  • List all properties of a ZFS file system
zfs get all [pool-name]

Show Pool Info

  • Show pool status
zpool status -x
  • Show individual pool status with verbose output
zpool status -v [pool-name]
  • Show all pools
zpool list
  • Show particular properties of all the pools (name & size)
zpool list -o name,size
  • Show all pools without headers & columns
zpool list -Ho name
  • Create a basic pool named datapool
zpool create datapool c0t0d0
  • Force the creation of a pool
zpool create -f datapool c0t0d0
  • Create a pool with a different mount point than the default.
zpool create -m /data datapool c0t0d0
  • Create RAID-Z vdev pool
zpool create datapool raidz c3t0d0 c3t1d0 c3t2d0
  • Add RAID-Z vdev to pool datapool
zpool add datapool raidz c4t0d0 c4t1d0 c4t2d0
  • Create RAID-Z1 pool
zpool create datapool raidz1 c0t0d0 c0t1d0 c0t2d0 c0t3d0 c0t4d0 c0t5d0
  • Create RAID-Z2 pool
zpool create datapool raidz2 c0t0d0 c0t1d0 c0t2d0 c0t3d0 c0t4d0 c0t5d0
  • Mirror c0t0d0 to c0t5d0
zpool create datapool mirror c0t0d0 c0t5d0
  • Disk c0t0d0 is mirrored with c0t5d0 and disk c0t2d0 is mirrored withc0t4d0
zpool create datapool mirror c0t0d0 c0t5d0 mirror c0t2d0 c0t4d0
  • Add new mirrored vdev to datapool
zpool add datapool mirror c3t0d0 c3t1d0
  • Add spare device c1t3d0 to the datapool
zpool add datapool spare c1t3d0
  • Do a dry run on pool creation
zpool create -n geekpool c1t3d0

File-system/Volume Commands

  • Create file-s­ystem fs1 under datapool
zfs create datapo­ol/fs1
  • Create 1 GB volume (Block device) in datapool
zfs create -V 1gb datapo­ol/­vol01
  • destroy datapool and all datasets under it
zfs destroy -r datapool
  • destroy file-s­ystem or volume (data) and all related snapshots
zfs destroy -fr datapo­ol/data

Maintenance Commands

  • Run scrub on all file systems under data pool
zpool scrub [pool-name]
  • Offline a disk untill reboot
zpool offline -t [pool-name] [disk-name]
  • Online a disk to clear error count
zpool online

File System Properties

  • Set quota of 1 GB on filesystem fs1
zfs set quota=1G datapo­ol/fs1
  • Set Reserv­ation of 1 GB on filesystem fs1
zfs set reserv­ati­on=1G datapo­ol/fs1
  • Disable ZFS auto mounting and enable mounting through /etc/v­fstab.
zfs set mountp­oin­t=l­egacy datapo­ol/fs1
  • Share fs1 as NFS
zfs set sharen­fs=on datapo­ol/fs1
  • Enable compre­ssion on fs1
zfs set compre­ssi­on=on datapo­ol/fs1
  • Set Dataset Record Size (Size should be a value like 16k, 128k, or 1M etc.)
zfs set record­siz­e=[­size] pool/d­ata­set­/name
  • Get Dataset Record Size
zfs get recordsize pool/d­ata­set­/name

IO Performance

  • Display ZFS I/O Statistics every 2 seconds
zpool iostat 2
  • Display detailed ZFS I/O statistics every 2 seconds
zpool iostat -v 2

Mount/Unmount Commands

  • Set the mount-point of file system fs1 to /data
zfs set mountpoint=/data datapool/fs1
  • Mount fs1 file system
zfs mount datapool/fs1
  • Umount ZFS file system fs1
zfs umount datapool/fs1
  • Mount all ZFS file systems
zfs mount -a
  • Umount all ZFS file systems
zfs umount -a

Import/Export Commands

  • List pools available for import
zpool import
  • Imports all pools found in the search directories
zpool import -a
  • To search for pools with block devices not located in /dev/dsk
zpool import -d
  • Search for a pool with block devices created in /zfs
zpool import -d /zfs datapool
  • Import a pool originally named oldpool under new name newpool
zpool import oldpool newpool
  • Import pool using pool ID
zpool import 3987837483
  • Deport a ZFS pool named datapool
zpool export datapool
  • Force the unmount and deport of a ZFS pool
zpool export -f datapool

Snapshot Commands

  • Create a snapshot named 12jan2014 of the fs1 filesystem
zfs snapshot datapool/fs1@12jan2014
  • List snapshots
zfs list -t snapshot
  • Roll back to 10jan2014 (recursively destroy intermediate snapshots)
zfs rollback -r datapool/fs1@10jan2014
  • Roll back must and force unmount and remount
zfs rollback -rf datapool/fs1@10jan2014
  • Destroy snapshot created earlier
zfs destroy datapool/fs1@10jan2014
  • Take a backup of ZFS snapshot locally
zfs send datapool/fs1@oct2013 > /geekpool/fs1/oct2013.bak
  • Restore from the snapshot backup backup taken
zfs receive anotherpool/fs1 < /geekpool/fs1/oct2013.bak
  • Combine the send and receive operation
zfs send datapool/fs1@oct2013 | zfs receive anotherpool/fs1
  • Send the snapshot to a remote system node02
zfs send datapool/fs1@oct2013 | ssh node02 "zfs receive testpool/testfs "