====== ZFS snapshots ======

<code bash>
zfs list -t snapshot
</code>

===== get space used by snapshots =====

<code bash>
zfs list -o space
</code>


===== destroy snapshots =====

Destroy all snapshots contains ''2022'':
<code bash>
zfs list -H -t snapshot -o name | grep 2022 | xargs -n1 zfs destroy
</code>

===== Tools =====

==== zfs-auto-snapshot ====

Automatically create, rotate, and destroy periodic ZFS snapshots.

Exclude from snapshot:
<code bash>
zfs set com.sun:auto-snapshot=false rpool/BACKUP
zfs set com.sun:auto-snapshot=false rpool/var/tmp
zfs set com.sun:auto-snapshot=false rpool/var/log
</code>

<code bash>
sudo apt-get install zfs-auto-snapshot
</code>

==== pyznap ====

[[https://github.com/yboetz/pyznap|pyznap]]

==== zsnapd ====
[[https://github.com/grantma/zsnapd|ZFS Snapshot Daemon]]

Advanced. Can send snapshot to another machine.

==== zfsnap ====
[[https://github.com/zfsnap/zfsnap|zfsnap]]

====== GUIs ======

===== snapshot-explorer =====

<code>https://github.com/niziak/snapshot-explorer</code>

===== snapper =====

It is snapshot GUI for BTRFS. But there is a experimental [[https://github.com/johanfleury/snapper/tree/feature/zfs|zfs]] branch to support zfs.

[[https://github.com/openSUSE/snapper]]

===== zgui =====

[[https://gitlab.com/beteras/zgui]]
<code bash>
sudo apt-get install golang-go libzfslinux-dev


go get gitlab.com/beteras/zgui
</code>