Re: deduplicating file systems: VDO with Debian?
On Wed, 2022-11-09 at 12:13 +0100, tomas@tuxteam.de wrote:
> 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:
>
> [...]
> > > 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?
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