On Wed, Nov 09, 2022 at 11:15:15AM +0100, hw wrote: > On Wed, 2022-11-09 at 09:46 +0100, tomas@tuxteam.de wrote: [...] > > Pehaps you don't know about rsync's --link-dest option: you can, with rsync, > > keep generations without duplicating between them. > > No, I didn't know that. My intention has always been to create N copies. I'm > trying to figure out if I should change that. It's nifty, believe me :) > > 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). Cheers -- t
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