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Forum Discussion
Inexpensive NAS for over 4TB backups - recommendations?
To date, we've backed up our ReadyNAS Pros using cheap USB drives. This has served us well over the past three years but as we move forward to much larger disks and volume capacity, I'm rethinking thi...
btrfs snapshots are described here: https://btrfs.wiki.kernel.org/index.php ... napshot.3F
If you do incremental backups with snapshots on, then the previous versions of the folder can still be accessed. This does take space of course, and you may not need them. The main value is that it gives you some ability to recover from user error.
It's a btrfs file system feature, so the snapshots have to be in the same volume as the folder. OS6 creates each share as a btrfs subvolume, so the snapshots are essentially part of the share. One consequence is that moving files between shares in OS6 is a copy/delete operation - not as fast as on the Pro.
When restoring, the snapshot folders would be included (so you might need to delete them before restoring).
If you do incremental backups with snapshots on, then the previous versions of the folder can still be accessed. This does take space of course, and you may not need them. The main value is that it gives you some ability to recover from user error.
It's a btrfs file system feature, so the snapshots have to be in the same volume as the folder. OS6 creates each share as a btrfs subvolume, so the snapshots are essentially part of the share. One consequence is that moving files between shares in OS6 is a copy/delete operation - not as fast as on the Pro.
When restoring, the snapshot folders would be included (so you might need to delete them before restoring).
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