Martin Matuska 271171e0d9 zfs: merge openzfs/zfs@b3d0568cf
Notable upstream pull request merges:
  #9372 Implement a new type of zfs receive: corrective receive (-c)
  #13635 Add snapshots_changed as property
  #13636 Add support for per dataset zil stats and use wmsum counters
  #13643 Fix scrub resume from newly created hole
  #13670 Fix memory allocation for the checksum benchmark
  #13695 Skip checksum benchmarks on systems with slow cpu
  #13711 zpool: fix redundancy check after vdev removal

Obtained from:	OpenZFS
OpenZFS commit:	b3d0568cfd65458c92f7ab3d7bb709087992628e
2022-08-14 01:14:21 +02:00

97 lines
3.4 KiB
Groff

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.\" 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.
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.\" Copyright 2019 Richard Laager. All rights reserved.
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.Dd March 16, 2022
.Dt ZFS-CLONE 8
.Os
.
.Sh NAME
.Nm zfs-clone
.Nd clone snapshot of ZFS dataset
.Sh SYNOPSIS
.Nm zfs
.Cm clone
.Op Fl p
.Oo Fl o Ar property Ns = Ns Ar value Oc Ns
.Ar snapshot Ar filesystem Ns | Ns Ar volume
.
.Sh DESCRIPTION
See the
.Sx Clones
section of
.Xr zfsconcepts 7
for details.
The target dataset can be located anywhere in the ZFS hierarchy,
and is created as the same type as the original.
.Bl -tag -width Ds
.It Fl o Ar property Ns = Ns Ar value
Sets the specified property; see
.Nm zfs Cm create
for details.
.It Fl p
Creates all the non-existing parent datasets.
Datasets created in this manner are automatically mounted according to the
.Sy mountpoint
property inherited from their parent.
If the target filesystem or volume already exists, the operation completes
successfully.
.El
.
.Sh EXAMPLES
.\" These are, respectively, examples 9, 10 from zfs.8
.\" Make sure to update them bidirectionally
.Ss Example 1 : No Creating a ZFS Clone
The following command creates a writable file system whose initial contents are
the same as
.Ar pool/home/bob@yesterday .
.Dl # Nm zfs Cm clone Ar pool/home/bob@yesterday pool/clone
.
.Ss Example 2 : No Promoting a ZFS Clone
The following commands illustrate how to test out changes to a file system, and
then replace the original file system with the changed one, using clones, clone
promotion, and renaming:
.Bd -literal -compact -offset Ds
.No # Nm zfs Cm create Ar pool/project/production
populate /pool/project/production with data
.No # Nm zfs Cm snapshot Ar pool/project/production Ns @ Ns Ar today
.No # Nm zfs Cm clone Ar pool/project/production@today pool/project/beta
make changes to /pool/project/beta and test them
.No # Nm zfs Cm promote Ar pool/project/beta
.No # Nm zfs Cm rename Ar pool/project/production pool/project/legacy
.No # Nm zfs Cm rename Ar pool/project/beta pool/project/production
once the legacy version is no longer needed, it can be destroyed
.No # Nm zfs Cm destroy Ar pool/project/legacy
.Ed
.
.Sh SEE ALSO
.Xr zfs-promote 8 ,
.Xr zfs-snapshot 8