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man: zfs-snapshot.8: import examples from zfs.8 

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13228
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наб 2022-03-16 18:53:59 +01:00 committed by Brian Behlendorf
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60
man/man8/zfs-snapshot.8
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@ -29,7 +29,7 @@
.\" Copyright 2018 Nexenta Systems, Inc.
.\" Copyright 2019 Joyent, Inc.
.\"
.Dd May 27, 2021
.Dd March 16, 2022
.Dt ZFS-SNAPSHOT 8
.Os
.
@ -65,6 +65,64 @@ for details.
Recursively create snapshots of all descendent datasets
.El
.
.Sh EXAMPLES
.\" These are, respectively, examples 2, 3, 10, 15 from zfs.8
.\" Make sure to update them bidirectionally
.Ss Example 1 : No Creating a ZFS Snapshot
The following command creates a snapshot named
.Ar yesterday .
This snapshot is mounted on demand in the
.Pa .zfs/snapshot
directory at the root of the
.Ar pool/home/bob
file system.
.Dl # Nm zfs Cm snapshot Ar pool/home/bob Ns @ Ns Ar yesterday
.
.Ss Example 2 : No Creating and Destroying Multiple Snapshots
The following command creates snapshots named
.Ar yesterday No of Ar pool/home
and all of its descendent file systems.
Each snapshot is mounted on demand in the
.Pa .zfs/snapshot
directory at the root of its file system.
The second command destroys the newly created snapshots.
.Dl # Nm zfs Cm snapshot Fl r Ar pool/home Ns @ Ns Ar yesterday
.Dl # Nm zfs Cm destroy Fl r Ar pool/home Ns @ Ns Ar yesterday
.
.Ss Example 3 : 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
.
.Ss Example 4 : No Performing a Rolling Snapshot
The following example shows how to maintain a history of snapshots with a
consistent naming scheme.
To keep a week's worth of snapshots, the user destroys the oldest snapshot,
renames the remaining snapshots, and then creates a new snapshot, as follows:
.Bd -literal -compact -offset Ds
.No # Nm zfs Cm destroy Fl r Ar pool/users@7daysago
.No # Nm zfs Cm rename Fl r Ar pool/users@6daysago No @ Ns Ar 7daysago
.No # Nm zfs Cm rename Fl r Ar pool/users@5daysago No @ Ns Ar 6daysago
.No # Nm zfs Cm rename Fl r Ar pool/users@4daysago No @ Ns Ar 5daysago
.No # Nm zfs Cm rename Fl r Ar pool/users@3daysago No @ Ns Ar 4daysago
.No # Nm zfs Cm rename Fl r Ar pool/users@2daysago No @ Ns Ar 3daysago
.No # Nm zfs Cm rename Fl r Ar pool/users@yesterday No @ Ns Ar 2daysago
.No # Nm zfs Cm rename Fl r Ar pool/users@today No @ Ns Ar yesterday
.No # Nm zfs Cm snapshot Fl r Ar pool/users Ns @ Ns Ar today
.Ed
.
.Sh SEE ALSO
.Xr zfs-bookmark 8 ,
.Xr zfs-clone 8 ,

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man/man8/zfs.8
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@ -301,6 +301,7 @@ if invalid command line options were specified.
.Sh EXAMPLES
.\" Examples 1, 4, 6, 7, 11, 14, 16 are shared with zfs-set.8.
.\" Examples 1, 10 are shared with zfs-create.8.
.\" Examples 2, 3, 10, 15 are also shared with zfs-snapshot.8.
.\" Examples 3, 10, 15 are shared with zfs-destroy.8.
.\" Examples 5 are shared with zfs-list.8.
.\" Examples 8 are shared with zfs-rollback.8.