NAME

zfs-destroy — destroy ZFS dataset, snapshots, or bookmark

SYNOPSIS

DESCRIPTION

zfs destroy [-Rfnprv] filesystem|volume

Destroys the given dataset. By default, the command unshares any file systems that are currently shared, unmounts any file systems that are currently mounted, and refuses to destroy a dataset that has active dependents (children or clones).

-R

Recursively destroy all dependents, including cloned file systems outside the target hierarchy.

-f

Forcibly unmount file systems. This option has no effect on non-file systems or unmounted file systems.

-n

Do a dry-run ("No-op") deletion. No data will be deleted. This is useful in conjunction with the -v or -p flags to determine what data would be deleted.

-p

Print machine-parsable verbose information about the deleted data.

-r

Recursively destroy all children.

-v

Print verbose information about the deleted data.

Extreme care should be taken when applying either the -r or the -R options, as they can destroy large portions of a pool and cause unexpected behavior for mounted file systems in use.

zfs destroy [-Rdnprv] filesystem|volume@snap[%snap[,snap[%snap]]]…

Attempts to destroy the given snapshot(s). This will fail if any clones of the snapshot exist or if the snapshot is held. In this case, by default, zfs destroy will have no effect and exit in error. If the -d option is applied, the command will instead mark the given snapshot for automatic destruction as soon as it becomes eligible. While marked for destruction, a snapshot remains visible, and the user may create new clones from it and place new holds on it.

The read-only snapshot properties defer_destroy and userrefs are used by zfs destroy to determine eligibility and marked status.

An inclusive range of snapshots may be specified by separating the first and last snapshots with a percent sign. The first and/or last snapshots may be left blank, in which case the filesystem's oldest or newest snapshot will be implied.

Multiple snapshots (or ranges of snapshots) of the same filesystem or volume may be specified in a comma-separated list of snapshots. Only the snapshot's short name (the part after the @) should be specified when using a range or comma-separated list to identify multiple snapshots.

-R

Recursively destroy all clones of these snapshots, including the clones, snapshots, and children. If this flag is specified, the -d flag will have no effect.

-d

Rather than returning error if the given snapshot is ineligible for immediate destruction, mark it for deferred, automatic destruction once it becomes eligible.

-n

Do a dry-run ("No-op") deletion. No data will be deleted. This is useful in conjunction with the -p or -v flags to determine what data would be deleted.

-p

Print machine-parsable verbose information about the deleted data.

-r

Destroy (or mark for deferred deletion) all snapshots with this name in descendent file systems.

-v

Print verbose information about the deleted data.

Extreme care should be taken when applying either the -r or the -R options, as they can destroy large portions of a pool and cause unexpected behavior for mounted file systems in use.

zfs destroy filesystem|volume#bookmark

The given bookmark is destroyed.

EXAMPLES

# zfs create pool/project/production
  populate /pool/project/production with data
# zfs snapshot pool/project/production@today
# zfs clone pool/project/production@today pool/project/beta
  make changes to /pool/project/beta and test them
# zfs promote pool/project/beta
# zfs rename pool/project/production pool/project/legacy
# zfs rename pool/project/beta pool/project/production
  once the legacy version is no longer needed, it can be destroyed
# zfs destroy pool/project/legacy

# zfs destroy -r pool/users@7daysago
# zfs rename -r pool/users@6daysago @7daysago
# zfs rename -r pool/users@5daysago @6daysago
# zfs rename -r pool/users@4daysago @5daysago
# zfs rename -r pool/users@3daysago @4daysago
# zfs rename -r pool/users@2daysago @3daysago
# zfs rename -r pool/users@yesterday @2daysago
# zfs rename -r pool/users@today @yesterday
# zfs snapshot -r pool/users@today

SEE ALSO

zfs-create(8), zfs-hold(8), zfsprops(8)