Tuesday, October 27, 2009

ZFS Cheat Sheet

Create simple striped pool:
zpool create [pool_name] [device] [device] ...
zpool create datapool c5t433127A900011C370000C00003210000d0 c5t433127B4001031250000900000540000d0

Create mirrored pool:
zpool create [pool_name] mirror [device] [device] ...
zpool create datapool mirror c5t433127A900011C370000C00003210000d0 c5t433127B4001031250000900000540000d0

Create Raid-Z pool:
zpool create [pool_name] raidz [device] [device] [device] ...
zpool create datapool raidz c5t433127A900011C370000C00003210000d0 c5t433127B4001031250000900000540000d0 c5t439257C4000019250000900000540000d0

Transform simple pool to a mirror:
zpool create [pool_name] [device]
zpool attach [pool_name] [existing_device] [new_device]
zpool create datapool c5t433127A900011C370000C00003210000d0
zpool attach datapool c5t433127A900011C370000C00003210000d0 c5t433127B4001031250000900000540000d0

Expand simple pool:
zpool create [pool_name] [device]
zpool add [pool_name] [new_device]
zpool create datapool c5t433127A900011C370000C00003210000d0
zpool add datapool c5t433127B4001031250000900000540000d0

Expand mirrored pool by attaching additional mirror:
zpool add [pool_name] mirror [new_device] [new_device]
zpool add datapool mirror c5t433127A900011C370000C00003460000d0 c5t433127B400011C370000C00003410000d0

Replace device in a pool:
zpool replace [pool_name] [old_device] [new_device]
zpool replace datapool c5t433127A900011C370000C00003410000d0 c5t433127B4001031250000900000540000d0

Destroy pool:
zpool destroy [pool_name]
zpool destroy datapool

Set pool mountpoint:
zfs set mountpoint=/path [pool_name]
zfs set mountpoint=/export/zfs datapool

Display configured pools:
zpool list
zpool list

Display pool status info:
zpool status [-v] [pool_name]
zpool status -v datapool

Display pool I/O statistics:
zpool iostat [pool_name]
zpool iostat datapool

Display pool command history:
zpool history [pool_name]
zpool history datapool

Export a pool:
zpool export [pool_name]
zpool export datapool

Import a pool:
zpool import [pool_name]
zpool import datapool

Create a filesystem:
zfs create [pool_name]/[fs_name]
zfs create datapool/filesystem

Destroy a filesystem:
zfs destroy [pool_name]/[fs_name]
zfs destroy datapool/filesystem

Rename a filesystem:
zfs rename [pool_name]/[fs_name] [pool_name]/[fs_name]
zfs rename datapool/filesystem datapool/newfilesystem

Move a filesystem:
zfs rename [pool_name]/[fs_name] [pool_name]/[fs_name]/[fs_name]
zfs rename datapool/filesystem datapool/users/filesystem

Display properties of a filesystem:
zfs get all [pool_name]/[fs_name]
zfs get all datapool/filesystem

Make a snapshot:
zfs snapshot [pool_name]/[fs_name]@[time]
zfs snapshot datapool/filesystem@friday

Roll back filesystem to its snapshot:
zfs rollback [pool_name]/[fs_name]@[time]
zfs rollback datapool/filesystem@friday

Clone a filesystem:
zfs snapshot [pool_name]/[fs_name]@[time]
zfs clone [pool_name]/[fs_name]@[time] [pool_name]/[fs_name]
zfs snapshot datapool/filesystem@today
zfs clone datapool/filesystem@today datapool/filesystemclone

Backup filesystem to a file:
zfs send [pool_name]/[fs_name] > /path/to/file
zfs send datapool/filesystem@friday > /tmp/filesystem.bkp

Restore filesystem from a file:
zfs receive [pool_name]/[fs_name] < /path/to/file zfs receive datapool/restoredfilesystem < /tmp/filesystem.bkp Create ZFS volume: zfs create -V [size] [pool_name]/[vol_name] zfs create -V 100mb datapool/zvolume newfs /dev/zvol/dsk/datapool/zvolume

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