Greg Vickers wrote:
> Hi all,
>
> A client of mine would like to backup their single Debian server and
> they have purchased two external 100Gb USB2 HDDs for this purpose.
> I'm looking at using Bacula to do this, but can't work out a graceful
> way of configuring Bacula to do this. (Bacula version 1.36.2-2sarge1
> on Debian Stable.)
>
> Graceful in this context means all a user has to do is on a Monday,
> go off-site & retrieve HDD 'B', bring HDD 'B' back to office, unplug
> HDD 'A', plug in HDD 'B' and take HDD 'A' off-site. (i.e. automount
> and post-job unmount or something like that? - see below)
>
> So I can identify each HDD by the UUID of the filesystem and mount
> them in a suitable location, i.e. /mnt/backupusbhddA,
> /mnt/backupusbhddB. Or I can just have /dev/sdd automatically mounted
> on /mnt/backupusbhdd, irrespective of which HDD is actually plugged
> in.
>
> What I can't figure out (and I've been slogging through the manual so
> maybe I just haven't found the right section, or I lost it in the
> reams of information :p) is how to: 1) tell Bacula to use a different
> mount point for the same backup job, (backupusbhdd{A,B}) depending on
> which mount point actually has something mounted on it, or; 2) have
> Bacula use a single mount point and if there is a volume that is due
> for expiry, reuse it or if there are not expiring volumes present,
> create a new one. (i.e. monthly, weekly, daily.)
>
> I know each approach has pros and cons and I know some of them, but I
> am wondering if anyone has done this before (using two external USB
> HDDs) and what they did to solve the problem, and what pros and cons
> they found?
>
> Thanks, Greg
Greetings,
I do similar to what Ger indicated (I have 2 hard drives alternating in
an external USB enclosure connected to a box running Bacula under
FreeBSD), but set the status to Used rather than Full.
AFAIK the same device will always be created (e.g. /dev/sda), and that
will have a corresponding constant mount point (from /etc/fstab).
An automated solution for you might be to write a cron job to run an SQL
update command to set the media status to Used at the end of each week's
cycle, and maybe even fire off a reminder email to whoever is supposed
to swap USB drives.
Rowdy
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