On Wed, 2022-11-09 at 12:13 +0100, to...@tuxteam.de wrote: > On Wed, Nov 09, 2022 at 11:15:15AM +0100, hw wrote: > > On Wed, 2022-11-09 at 09:46 +0100, to...@tuxteam.de wrote: > > [...] > > > But, as others have said, deduplication at the file system level (or > > > below, > > > as VDO does) is mainly interesting where you have a whole herd of VMs > > > [...] > > > Well, I'm undecided about that when it comes to backups ... Why I would > > clone > > VMs or containers all the time? > > Then you're better served with deduplication built into the backup, not > into the file system or (worse!) into the block layer. Either the simple > rsync --link-dest or the more "pro" à la backuppc et al (most of them do > have deduplication).
Both only works when I don't keep two copies. Aren't snapshots better than using hardlinks like that?