mirror of
https://git.proxmox.com/git/mirror_zfs.git
synced 2024-12-27 03:19:35 +03:00
41715771b5
This allows for printing a machine-readable, accurate to the second, hold creation time in the form of a unix epoch timestamp. Additionally, updates relevant documentation and man pages accordingly. Reviewed-by: Allan Jude <allan@klarasystems.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Mohamed Tawfik <m_tawfik@aucegypt.edu> Closes #13690 Closes #14152
115 lines
3.0 KiB
Groff
115 lines
3.0 KiB
Groff
.\"
|
|
.\" CDDL HEADER START
|
|
.\"
|
|
.\" The contents of this file are subject to the terms of the
|
|
.\" Common Development and Distribution License (the "License").
|
|
.\" You may not use this file except in compliance with the License.
|
|
.\"
|
|
.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
|
.\" or https://opensource.org/licenses/CDDL-1.0.
|
|
.\" See the License for the specific language governing permissions
|
|
.\" and limitations under the License.
|
|
.\"
|
|
.\" When distributing Covered Code, include this CDDL HEADER in each
|
|
.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
|
.\" If applicable, add the following below this CDDL HEADER, with the
|
|
.\" fields enclosed by brackets "[]" replaced with your own identifying
|
|
.\" information: Portions Copyright [yyyy] [name of copyright owner]
|
|
.\"
|
|
.\" CDDL HEADER END
|
|
.\"
|
|
.\" Copyright (c) 2009 Sun Microsystems, Inc. All Rights Reserved.
|
|
.\" Copyright 2011 Joshua M. Clulow <josh@sysmgr.org>
|
|
.\" Copyright (c) 2011, 2019 by Delphix. All rights reserved.
|
|
.\" Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
|
|
.\" Copyright (c) 2014, Joyent, Inc. All rights reserved.
|
|
.\" Copyright (c) 2014 by Adam Stevko. All rights reserved.
|
|
.\" Copyright (c) 2014 Integros [integros.com]
|
|
.\" Copyright 2019 Richard Laager. All rights reserved.
|
|
.\" Copyright 2018 Nexenta Systems, Inc.
|
|
.\" Copyright 2019 Joyent, Inc.
|
|
.\"
|
|
.Dd June 30, 2019
|
|
.Dt ZFS-HOLD 8
|
|
.Os
|
|
.
|
|
.Sh NAME
|
|
.Nm zfs-hold
|
|
.Nd hold ZFS snapshots to prevent their removal
|
|
.Sh SYNOPSIS
|
|
.Nm zfs
|
|
.Cm hold
|
|
.Op Fl r
|
|
.Ar tag Ar snapshot Ns …
|
|
.Nm zfs
|
|
.Cm holds
|
|
.Op Fl rHp
|
|
.Ar snapshot Ns …
|
|
.Nm zfs
|
|
.Cm release
|
|
.Op Fl r
|
|
.Ar tag Ar snapshot Ns …
|
|
.
|
|
.Sh DESCRIPTION
|
|
.Bl -tag -width ""
|
|
.It Xo
|
|
.Nm zfs
|
|
.Cm hold
|
|
.Op Fl r
|
|
.Ar tag Ar snapshot Ns …
|
|
.Xc
|
|
Adds a single reference, named with the
|
|
.Ar tag
|
|
argument, to the specified snapshots.
|
|
Each snapshot has its own tag namespace, and tags must be unique within that
|
|
space.
|
|
.Pp
|
|
If a hold exists on a snapshot, attempts to destroy that snapshot by using the
|
|
.Nm zfs Cm destroy
|
|
command return
|
|
.Sy EBUSY .
|
|
.Bl -tag -width "-r"
|
|
.It Fl r
|
|
Specifies that a hold with the given tag is applied recursively to the snapshots
|
|
of all descendent file systems.
|
|
.El
|
|
.It Xo
|
|
.Nm zfs
|
|
.Cm holds
|
|
.Op Fl rHp
|
|
.Ar snapshot Ns …
|
|
.Xc
|
|
Lists all existing user references for the given snapshot or snapshots.
|
|
.Bl -tag -width "-r"
|
|
.It Fl r
|
|
Lists the holds that are set on the named descendent snapshots, in addition to
|
|
listing the holds on the named snapshot.
|
|
.It Fl H
|
|
Do not print headers, use tab-delimited output.
|
|
.It Fl p
|
|
Prints holds timestamps as unix epoch timestamps.
|
|
.El
|
|
.It Xo
|
|
.Nm zfs
|
|
.Cm release
|
|
.Op Fl r
|
|
.Ar tag Ar snapshot Ns …
|
|
.Xc
|
|
Removes a single reference, named with the
|
|
.Ar tag
|
|
argument, from the specified snapshot or snapshots.
|
|
The tag must already exist for each snapshot.
|
|
If a hold exists on a snapshot, attempts to destroy that snapshot by using the
|
|
.Nm zfs Cm destroy
|
|
command return
|
|
.Sy EBUSY .
|
|
.Bl -tag -width "-r"
|
|
.It Fl r
|
|
Recursively releases a hold with the given tag on the snapshots of all
|
|
descendent file systems.
|
|
.El
|
|
.El
|
|
.
|
|
.Sh SEE ALSO
|
|
.Xr zfs-destroy 8
|