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1e36af8c7b
Use proper names (i.e. zfs-allow and zpool-add) in NAME subsections of zfs/zpool subcommands instead of current "pretty-printed" ones as makewhatis utilities (or some implementations of it, namely the one from mandoc suite used in FreeBSD) look not only at the document title but also in NAME subsection, adding zfs(8)/zpool(8) to search results which is not correct. (Common sense and other utilities splitting subcommands in multiple man pages, e.g. git, do the same.) Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: xtouqh <xtouqh@hotmail.com> Closes #11086
179 lines
5.2 KiB
Groff
179 lines
5.2 KiB
Groff
.\"
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.\" CDDL HEADER START
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.\"
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.\" The contents of this file are subject to the terms of the
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.\" Common Development and Distribution License (the "License").
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.\" You may not use this file except in compliance with the License.
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.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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.\" or http://www.opensolaris.org/os/licensing.
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.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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.\" If applicable, add the following below this CDDL HEADER, with the
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.\" fields enclosed by brackets "[]" replaced with your own identifying
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.\" information: Portions Copyright [yyyy] [name of copyright owner]
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.\"
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.\" CDDL HEADER END
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.\"
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.\"
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.\" Copyright (c) 2009 Sun Microsystems, Inc. All Rights Reserved.
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.\" Copyright 2011 Joshua M. Clulow <josh@sysmgr.org>
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.\" Copyright (c) 2011, 2019 by Delphix. All rights reserved.
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.\" Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
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.\" Copyright (c) 2014, Joyent, Inc. All rights reserved.
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.\" Copyright (c) 2014 by Adam Stevko. All rights reserved.
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.\" Copyright (c) 2014 Integros [integros.com]
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.\" Copyright 2019 Richard Laager. All rights reserved.
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.\" Copyright 2018 Nexenta Systems, Inc.
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.\" Copyright 2019 Joyent, Inc.
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.\"
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.Dd June 30, 2019
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.Dt ZFS-DESTROY 8
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.Os
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.Sh NAME
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.Nm zfs-destroy
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.Nd Destroys the given dataset(s), snapshot(s), or bookmark.
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.Sh SYNOPSIS
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.Nm zfs
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.Cm destroy
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.Op Fl Rfnprv
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.Ar filesystem Ns | Ns Ar volume
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.Nm zfs
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.Cm destroy
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.Op Fl Rdnprv
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.Ar filesystem Ns | Ns Ar volume Ns @ Ns Ar snap Ns
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.Oo % Ns Ar snap Ns Oo , Ns Ar snap Ns Oo % Ns Ar snap Oc Oc Oc Ns ...
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.Nm zfs
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.Cm destroy
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.Ar filesystem Ns | Ns Ar volume Ns # Ns Ar bookmark
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.Sh DESCRIPTION
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.Bl -tag -width ""
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.It Xo
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.Nm zfs
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.Cm destroy
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.Op Fl Rfnprv
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.Ar filesystem Ns | Ns Ar volume
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.Xc
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Destroys the given dataset.
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By default, the command unshares any file systems that are currently shared,
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unmounts any file systems that are currently mounted, and refuses to destroy a
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dataset that has active dependents
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.Pq children or clones .
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.Bl -tag -width "-R"
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.It Fl R
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Recursively destroy all dependents, including cloned file systems outside the
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target hierarchy.
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.It Fl f
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Force an unmount of any file systems using the
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.Nm unmount Fl f
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command.
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This option has no effect on non-file systems or unmounted file systems.
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.It Fl n
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Do a dry-run
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.Pq Qq No-op
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deletion.
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No data will be deleted.
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This is useful in conjunction with the
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.Fl v
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or
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.Fl p
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flags to determine what data would be deleted.
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.It Fl p
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Print machine-parsable verbose information about the deleted data.
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.It Fl r
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Recursively destroy all children.
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.It Fl v
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Print verbose information about the deleted data.
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.El
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.Pp
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Extreme care should be taken when applying either the
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.Fl r
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or the
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.Fl R
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options, as they can destroy large portions of a pool and cause unexpected
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behavior for mounted file systems in use.
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.It Xo
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.Nm zfs
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.Cm destroy
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.Op Fl Rdnprv
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.Ar filesystem Ns | Ns Ar volume Ns @ Ns Ar snap Ns
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.Oo % Ns Ar snap Ns Oo , Ns Ar snap Ns Oo % Ns Ar snap Oc Oc Oc Ns ...
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.Xc
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The given snapshots are destroyed immediately if and only if the
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.Ql zfs destroy
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command without the
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.Fl d
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option would have destroyed it.
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Such immediate destruction would occur, for example, if the snapshot had no
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clones and the user-initiated reference count were zero.
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.Pp
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If a snapshot does not qualify for immediate destruction, it is marked for
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deferred deletion.
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In this state, it exists as a usable, visible snapshot until both of the
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preconditions listed above are met, at which point it is destroyed.
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.Pp
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An inclusive range of snapshots may be specified by separating the first and
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last snapshots with a percent sign.
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The first and/or last snapshots may be left blank, in which case the
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filesystem's oldest or newest snapshot will be implied.
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.Pp
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Multiple snapshots
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.Pq or ranges of snapshots
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of the same filesystem or volume may be specified in a comma-separated list of
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snapshots.
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Only the snapshot's short name
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.Po the part after the
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.Sy @
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.Pc
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should be specified when using a range or comma-separated list to identify
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multiple snapshots.
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.Bl -tag -width "-R"
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.It Fl R
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Recursively destroy all clones of these snapshots, including the clones,
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snapshots, and children.
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If this flag is specified, the
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.Fl d
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flag will have no effect.
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.It Fl d
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Destroy immediately. If a snapshot cannot be destroyed now, mark it for
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deferred destruction.
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.It Fl n
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Do a dry-run
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.Pq Qq No-op
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deletion.
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No data will be deleted.
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This is useful in conjunction with the
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.Fl p
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or
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.Fl v
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flags to determine what data would be deleted.
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.It Fl p
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Print machine-parsable verbose information about the deleted data.
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.It Fl r
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Destroy
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.Pq or mark for deferred deletion
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all snapshots with this name in descendent file systems.
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.It Fl v
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Print verbose information about the deleted data.
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.Pp
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Extreme care should be taken when applying either the
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.Fl r
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or the
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.Fl R
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options, as they can destroy large portions of a pool and cause unexpected
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behavior for mounted file systems in use.
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.El
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.It Xo
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.Nm zfs
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.Cm destroy
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.Ar filesystem Ns | Ns Ar volume Ns # Ns Ar bookmark
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.Xc
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The given bookmark is destroyed.
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.El
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.Sh SEE ALSO
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.Xr zfs-create 8 ,
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.Xr zfs-hold 8
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