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commands-zfs
Sammlung nützlicher Befehle
ZFS Commands
list ZFS volumes with exact numbers
zfs list -p
get a property (e.g. canmount) for all present datasets
zfs get -t filesystem canmount
list all snapshots of a volume and its child volumes
zfs list -r -t snapshot -o name,creation,space tank/usr
delete all ZFS snapshots
# the following also deletes children dataset/zvol zfs destroy -rv tank/dataset_or_zvol@% # the following greps only snapshots of exactly that dataset/zvol zfs list -H -o name -t snapshot | grep '^tank/dataset_or_zvol@' | xargs -n1 zfs destroy
delete certain ZFS snapshots (e.g. ezjail's basejail from year 2016)
zfs list -t snapshot -H -o name | grep "basejail@2016" | xargs -n1 echo zfs list -t snapshot -H -o name | grep "basejail@2016" | xargs -n1 zfs destroy
create a ZVOL of 15 GiB
zfs create -V15G -o volmode=dev tank/vm/diskimage file /dev/zvol/tank/vm/diskimage
promote a cloned volume
zfs snapshot tank/test/foo@first zfs snapshot tank/test/foo@second zfs clone tank/test/foo@second tank/test/bar zfs snapshot tank/test/foo@third zfs snapshot tank/test/bar@fourth zfs list -r -t snapshot -o name,creation -s creation tank/test # NAME CREATION # tank/test/foo@first Sun Feb 4 17:03 2018 # tank/test/foo@second Sun Feb 4 17:04 2018 # tank/test/foo@third Sun Feb 4 17:05 2018 # tank/test/bar@fourth Sun Feb 4 17:06 2018 zfs promote tank/test/bar # after this as if "foo" was cloned from "bar" zfs list -r -t snapshot -o name,creation -s creation tank/test # NAME CREATION # tank/test/bar@first Sun Feb 4 17:03 2018 # tank/test/bar@second Sun Feb 4 17:04 2018 # tank/test/foo@third Sun Feb 4 17:05 2018 # tank/test/bar@fourth Sun Feb 4 17:06 2018
create a pool with a natively encrypted dataset
## create the pool (native encryption is available e.g. in “OpenZFS on OS X”) zpool create -O encryption=on -O keylocation=prompt -O keyformat=passphrase zextern /dev/disk2s2 ## before unplugging the drive zpool export zextern ## when re-attaching the drive zpool import zextern zfs mount -l zextern
commands-zfs.txt · Zuletzt geändert: 2019/07/01 21:06 von alex
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