[Borgbackup] how does dedupe work

[grumpy at mailfence.com]

On Thu, 16 Jul 2020, Zack Coffey wrote:

> I'll take a stab at this answer. Please correct me if I'm wrong.
>
> Yes, is the short answer. It will dedupe all of that. (Disclaimer, I've not
> tried it)
>
> However, when sharing repos there are caveats. Biggest I know of is the
> cache needs to be rebuilt every time borgbackup is run. This will make
> backups take much longer and I don't think you can run them at the same
> time. Pretty sure I remember seeing someone say you have to make sure they
> don't access the repo at the same time. So it will take more coordination
> as well.
>
> So it's a tradeoff, time vs space.
>
> Dedupe in borgbackup is great! I'm saving tons of space. But each machine
> has its own repo.
>
>
> On Thu, Jul 16, 2020 at 11:02 AM grumpy--- via Borgbackup <
> borgbackup at python.org> wrote:
>
>> i'm pretty new to borg so try to look around my ignorance
>> suppose i backup several machines to the same repository and these
>> machines have the same os
>> each machine will have a copy of many of the same files
>> does dedupe remove all of the copies

at present i also have each machine in a separate repository
just curious about others experiences and opinions