1.\" 2.\" CDDL HEADER START 3.\" 4.\" The contents of this file are subject to the terms of the 5.\" Common Development and Distribution License (the "License"). 6.\" You may not use this file except in compliance with the License. 7.\" 8.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9.\" or http://www.opensolaris.org/os/licensing. 10.\" See the License for the specific language governing permissions 11.\" and limitations under the License. 12.\" 13.\" When distributing Covered Code, include this CDDL HEADER in each 14.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15.\" If applicable, add the following below this CDDL HEADER, with the 16.\" fields enclosed by brackets "[]" replaced with your own identifying 17.\" information: Portions Copyright [yyyy] [name of copyright owner] 18.\" 19.\" CDDL HEADER END 20.\" 21.\" 22.\" Copyright (c) 2009 Sun Microsystems, Inc. All Rights Reserved. 23.\" Copyright 2011 Joshua M. Clulow <josh@sysmgr.org> 24.\" Copyright (c) 2011, 2019 by Delphix. All rights reserved. 25.\" Copyright (c) 2013 by Saso Kiselkov. All rights reserved. 26.\" Copyright (c) 2014, Joyent, Inc. All rights reserved. 27.\" Copyright (c) 2014 by Adam Stevko. All rights reserved. 28.\" Copyright (c) 2014 Integros [integros.com] 29.\" Copyright 2019 Richard Laager. All rights reserved. 30.\" Copyright 2018 Nexenta Systems, Inc. 31.\" Copyright 2019 Joyent, Inc. 32.\" 33.Dd June 30, 2019 34.Dt ZFS-ROLLBACK 8 35.Os 36.Sh NAME 37.Nm zfs-rollback 38.Nd Roll back the given dataset to a previous snapshot. 39.Sh SYNOPSIS 40.Nm zfs 41.Cm rollback 42.Op Fl Rfr 43.Ar snapshot 44.Sh DESCRIPTION 45.Bl -tag -width "" 46.It Xo 47.Nm zfs 48.Cm rollback 49.Op Fl Rfr 50.Ar snapshot 51.Xc 52When a dataset is rolled back, all data that has changed since the snapshot is 53discarded, and the dataset reverts to the state at the time of the snapshot. 54By default, the command refuses to roll back to a snapshot other than the most 55recent one. 56In order to do so, all intermediate snapshots and bookmarks must be destroyed by 57specifying the 58.Fl r 59option. 60.Pp 61The 62.Fl rR 63options do not recursively destroy the child snapshots of a recursive snapshot. 64Only direct snapshots of the specified filesystem are destroyed by either of 65these options. 66To completely roll back a recursive snapshot, you must rollback the individual 67child snapshots. 68.Bl -tag -width "-R" 69.It Fl R 70Destroy any more recent snapshots and bookmarks, as well as any clones of those 71snapshots. 72.It Fl f 73Used with the 74.Fl R 75option to force an unmount of any clone file systems that are to be destroyed. 76.It Fl r 77Destroy any snapshots and bookmarks more recent than the one specified. 78.El 79.El 80.Sh SEE ALSO 81.Xr zfs-snapshot 8 82