Hello again, folk,
I'm experimenting with volume management, and could use a few
pointers on some of the recycling capabilities of Bacula when dealing
with massive backups.
What we're trying to accomplish, is an off-site backup solution. As
such it has to be flexible, in case an Internet outage occurs or
otherwise...
We are keeping primarily smaller transfers, up to perhaps a Gigabyte
of any given users Home folder data, but, there are a few servers and
other systems we'd like to fully back up.
The problem with this, however, is that our upstream bandwidth could
take almost a whole month to perform a Full Backup for a really big file
system, so as such, we want to approach this with a sort of "Incremental
forever" strategy for the off site.
Currently the files are being backed up to the server in-house for
further testing, the server backs them up to disk.
What I've watched is, once in a while, for whatever reason (maybe
the user shut off their computer) if a network time out occurs - the
Volume/Media for that users pool becomes in an Error state. When this
happens, during their next scheduled back up, Bacula forces a Full
Backup - claiming it has no records of a previous Full Backup (since the
last Media it used was in an Error state).
What I'd like to do is one of the following scenarios:
A) Ignore an error on Media during a backup, and continue
writing anyway, using the Last Good Incremental as it's basis
for the next Incremental backup.
B) Use the "Maximum Volume Bytes =" pool option, and limit the
volumes to perhaps a few GB. Add a pile of volumes to this
pool, and if one fails it only has to recover a few GB during an
error, instead of the whopping 200GB (or whatever it comes out
to).
C) Cancel a backup job during storage, and purge the
incremental job files in question if an error like a network
problem occurs. Leaving the Media in Append mode, so next
backup schedule can run as normal again.
Can any of this be accomplished? Does someone have a better
alternative for an off site type of "Incremental forever" solution?
Thanks in advance,
--
Shawn Qureshi
Artemide, Inc.
IT Specialist
<<attachment: artemide-logo.jpg>>
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