On Monday 12 September 2005 21:43, Brian Keifer wrote:
> Hi, all.
>
> First of all, a little background...
>
> I'm in the process of setting up a large new disk- and tape-based backup
> server using Bacula 1.36.3. We expect the server to handle the backups of
> between 20 and 30 other servers.
>
> Initial counts show that we'll be grabbing about 110GB (totalling just
> short of 10,000,000 files) for each full backup. We're using a 1.3TB SATA
> RAID disk array for the majority of the backups (monthly full, weekly diff,
> daily inc) and will also be doing a full backup to an AIT-3 tape drive on a
> schedule yet to be determined so we have something off-site as well.
>
> With 10,000,000 files right off the bat, I'm a bit concerned about catalog
> size. We've got about 100GB of space to work with for catalog storage, but
> I'm mostly concerned with the File table growing extremely large. By my
> calculations, a single full backup will add about 1.5GB to the File table's
> size.
This is a problem, but a bigger problem is going to be the restores if you
have more than 1 million files for any one client. In that case an
interactive restore probably won't be a reasonable thing to do because of the
time needed to build an in memory directory tree for the restore -- at least
not until I add binary tree support.
If the 10 million files are roughly equally spaced on your clients, you
probably be OK.
>
> To combat this, I'm hoping to use several catalogs. What I wasn't able to
> figure out from the manual is whether or not I can keep all 20-30 servers
> backing up to one pool and still have them spread out over several catalog
> databases. Is this possible?
No, all Volumes, Pools, ... in the catalogs must be totally separate. A
Volume cannot exist in two catalogs without creating chaos.
> If so, are there any drawbacks?
Administration of multiple catalogs particularly for queries and restores.
This can be a pain. You must explicitly tell bconsole what catalog you want to
use. If you notice carefully, when it signs on, it tells what it has chosen
as a default catalog.
> If not, what's the best way to proceed?
I wish I knew ...
>
> Thanks!
>
> -Brian
--
Best regards,
Kern
(">
/\
V_V
-------------------------------------------------------
SF.Net email is Sponsored by the Better Software Conference & EXPO
September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices
Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA
Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf
_______________________________________________
Bacula-users mailing list
Bacula-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/bacula-users
