3 Nov
2023
3 Nov
'23
17:03
On 03.11.2023 15:13, jdd@dodin.org wrote:
Le 03/11/2023 à 12:30, Andrei Borzenkov a écrit :
btrfs is just a filesystem which can be backed up as any other filesystem.
obviously not, if deduplication is applied, as you explained just before.
You have rather strange idea about what backup is. Of course you can backup the content of btrfs filesystem like any other filesystem. It has absolutely nothing to do with it being deduplicated or not. If you want to *also* preserve space savings - it is rather different topic, only tangentially related to "backup".
but I know there are btrfs to btrfs way to do it (sort of copy), but I don't know the details
There is "btrfs send/receive" which should preserve space savings (but does not guarantee it).