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Hi,

not thinking this fully through, it sounds, like you could get, what you aim for, if you set up two independent allways-incremental backups - one for each external disk - and accept, that one of both (the remote one) is always failing - until you switch disks.

HTH, Erich

On Fri, 24 Dec 2021, Leonhart231 wrote:

Hi all! I tried getting this to work the last time I set up
Bareos but failed, so figured I'd get some help to see if it's
even possible since I want to dive in again.

My network setup is basically a home server that will act as
the director, storage daemon, and also a client. There will be
a few other clients on the local network, and a couple remote
clients.

In terms of the backup drive setup, I have two hard drives that
I can connect to the server, and at most one is connected at
any time, the other is stashed off-site at someone else's house
completely disconnected. What I have implemented now (using
rdiff-backup) that I want to see if it's possible to emulate
with Bareos is that each drive is completely independent from
the other. Meaning whenever I do a backup, only the data on the
drive currently connected is accounted for. So if I swap my on
and off site drives, the newly on-site drive has a backup done
accounting for the fact that there have been no backups done on
that drive in the last month (or however long it's been). The
intent with this is that if my house burns down, I will always
have a fairly recent full set of files available to restore
through the drive that's currently off-site. It'll be missing
some history, and there will be "gaps" in the history whenever
it's off-site, but this is acceptable to me. It is not possible
to have both drives connected at the same time and rsync / run
a copy job, or rather, I really want to avoid that being
required.

Each drive has more than enough space for a full copy of all
clients' data plus many incremental backups, and my plan is to
do an "Always incremental Backup Scheme", just in case that's
important. I toyed with the idea of moving the database itself
to the backup drive, but I have other Postgres DBs already, so
it doesn't look like that's possible, plus it felt like a hack.

Manually running a full backup after swapping drives is an
option, but not great since it's manual and takes storage space
that feels unnecessary. I assume it'd work with an Always
Incremental scheme if push came to shove though.

Is this possible in Bareos? Or given the description above, is
there some other way I should be doing this setup that is "more
correct"? Thanks for any help, and happy holidays!

- Leon

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