OpenMediaVault – Btrfs is a modern Copy on Write (CoW) filesystem and Snapper is a tool that helps managing snapshots of Btrfs subvolume

Cleanup based on Free Space in Filesystem – so far the space aware cleanup algorithms looked at the space the snapshots are using the algorithms are now extended to also look at the free space of the filesystem. Per default snapshots are deleted until at least 20% of the filesystem are free within the allowed limits (e.g. the NUMBER_LIMIT variable)

root@OpenMediaVault:~# snapper -c USBStick1 list
# | Type | Pre # | Date | User | Cleanup | Description | Userdata
—-+——–+——-+————————–+——+———-+————-+———
0 | single | | | root | | current |
1 | single | | Sun Nov 22 16:56:33 2020 | root | | |
2 | single | | Sun Nov 22 17:00:01 2020 | root | timeline | timeline |
3 | single | | Sun Nov 22 17:18:48 2020 | root | | |
4 | single | | Sun Nov 22 18:00:08 2020 | root | timeline | timeline |
5 | single | | Sun Nov 22 19:00:08 2020 | root | timeline | timeline |
6 | single | | Sun Nov 22 20:00:06 2020 | root | timeline | timeline |
7 | single | | Sun Nov 22 21:00:08 2020 | root | timeline | timeline |
8 | single | | Sun Nov 22 22:00:00 2020 | root | timeline | timeline |
9 | single | | Sun Nov 22 23:00:00 2020 | root | timeline | timeline |
10 | single | | Mon Nov 23 00:00:01 2020 | root | timeline | timeline |
11 | single | | Mon Nov 23 01:00:01 2020 | root | timeline | timeline |
12 | single | | Mon Nov 23 02:00:01 2020 | root | timeline | timeline |
13 | single | | Mon Nov 23 03:00:02 2020 | root | timeline | timeline |
14 | single | | Mon Nov 23 04:00:02 2020 | root | timeline | timeline |
15 | single | | Mon Nov 23 05:00:02 2020 | root | timeline | timeline |
16 | single | | Mon Nov 23 06:00:03 2020 | root | timeline | timeline |
17 | single | | Mon Nov 23 07:00:03 2020 | root | timeline | timeline |
18 | single | | Mon Nov 23 08:00:04 2020 | root | timeline | timeline |
root@OpenMediaVault:~#
root@OpenMediaVault:~# snapper -c USBStick2 list
# | Type | Pre # | Date | User | Cleanup | Description | Userdata
—-+——–+——-+————————–+——+———-+————-+———
0 | single | | | root | | current |
1 | single | | Sun Nov 22 18:00:09 2020 | root | timeline | timeline |
2 | single | | Sun Nov 22 19:00:09 2020 | root | timeline | timeline |
3 | single | | Sun Nov 22 20:00:07 2020 | root | timeline | timeline |
4 | single | | Sun Nov 22 21:00:09 2020 | root | timeline | timeline |
5 | single | | Sun Nov 22 22:00:00 2020 | root | timeline | timeline |
6 | single | | Sun Nov 22 23:00:01 2020 | root | timeline | timeline |
7 | single | | Mon Nov 23 00:00:01 2020 | root | timeline | timeline |
8 | single | | Mon Nov 23 01:00:01 2020 | root | timeline | timeline |
9 | single | | Mon Nov 23 02:00:02 2020 | root | timeline | timeline |
10 | single | | Mon Nov 23 03:00:02 2020 | root | timeline | timeline |
11 | single | | Mon Nov 23 04:00:03 2020 | root | timeline | timeline |
12 | single | | Mon Nov 23 05:00:03 2020 | root | timeline | timeline |
13 | single | | Mon Nov 23 06:00:03 2020 | root | timeline | timeline |
14 | single | | Mon Nov 23 07:00:04 2020 | root | timeline | timeline |
15 | single | | Mon Nov 23 08:00:04 2020 | root | timeline | timeline |
root@OpenMediaVault:~#

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