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82 lines
2.6 KiB
Groff
82 lines
2.6 KiB
Groff
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.\"
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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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.\"
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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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.\" See the License for the specific language governing permissions
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.\" When distributing Covered Code, include this CDDL HEADER in each
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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-ROLLBACK 8
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.Os Linux
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.Sh NAME
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.Nm zfs Ns Pf - Cm rollback
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.Nd Roll back the given dataset to a previous snapshot.
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.Sh SYNOPSIS
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.Nm
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.Cm rollback
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.Op Fl Rfr
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.Ar snapshot
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.Sh DESCRIPTION
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.Bl -tag -width ""
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.It Xo
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.Nm
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.Cm rollback
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.Op Fl Rfr
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.Ar snapshot
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.Xc
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When a dataset is rolled back, all data that has changed since the snapshot is
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discarded, and the dataset reverts to the state at the time of the snapshot.
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By default, the command refuses to roll back to a snapshot other than the most
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recent one.
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In order to do so, all intermediate snapshots and bookmarks must be destroyed by
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specifying the
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.Fl r
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option.
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.Pp
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The
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.Fl rR
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options do not recursively destroy the child snapshots of a recursive snapshot.
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Only direct snapshots of the specified filesystem are destroyed by either of
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these options.
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To completely roll back a recursive snapshot, you must rollback the individual
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child snapshots.
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.Bl -tag -width "-R"
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.It Fl R
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Destroy any more recent snapshots and bookmarks, as well as any clones of those
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snapshots.
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.It Fl f
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Used with the
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.Fl R
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option to force an unmount of any clone file systems that are to be destroyed.
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.It Fl r
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Destroy any snapshots and bookmarks more recent than the one specified.
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.El
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.El
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.Sh SEE ALSO
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.Xr zfs-snapshot 8
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