[Borgbackup] Multi-machine backup when there's some data overlap

[Oon-Ee Ng]

Thanks for that, but the loss of 3 and 4 is *probably* acceptable for this
situation, as my backup location is a machine I control.

On Tue, Oct 16, 2018 at 11:40 PM Marian Beermann <public at enkore.de> wrote:

> And if you are using encryption you kinda need to trust the repo server
> as well.
>
> See
>
> https://borgbackup.readthedocs.io/en/stable/internals/security.html#attack-model
>
> On 10/16/18 3:18 PM, Zack Coffey wrote:
> > https://borgbackup.readthedocs.io/en/stable/faq.html
> >
> > That question is the very first answer in the FAQ.
> >
> > The answer is basically "yes, but..."
> >
> > Each machine is responsible for taking care of the whole repo as if it
> > were it's own. So it needs to sync the whole thing, take care of
> > everything and leave it all in a good state. Otherwise the next backup
> > client is going to have trouble. Oh, and only 1 can run at a time.
> >
> > If all of those are not a concern and dedupe is a higher priority, then
> > yes they can all backup to 1 repo. Otherwise, individual repos is wiser.
> >
> > On Tue, Oct 16, 2018 at 1:14 AM Oon-Ee Ng <ngoonee.talk at gmail.com
> > <mailto:ngoonee.talk at gmail.com>> wrote:
> >
> >     Apologies in advance if I get terminology wrong, I've used rsnapshot
> >     for a decade or more and am only now looking to upgrade my backup
> >     process.
> >
> >     Having said that, what's the best way to approach multi-machine
> >     backup? Obviously the most straightforward way is to initialize at
> >     least one borg backup per machine. However if I read that correctly
> >     this will create isolated repositories, which cannot take advantage
> >     of any data overlap.
> >
> >     Just to avoid this being an XY problem, my core use case is having
> >     multiple computers (Linux and Windows via cygwin) backing up to a
> >     single backup host using borgbackup. Some of these machines have
> >     duplicated data (especially in terms of photos/videos, since these
> >     are personal/family machines), so there should be significant space
> >     savings from being keeping them in one repository, if that is at all
> >     possible.
> >
> >     Thanks in advace!
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> >
> >
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>
>
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