Hello,

I have had Bacula running for about a month, backing up several servers. 
The storage that I have available is a 600 GB RAID-5 device local to the 
Director machine. I set up this space as one File volume, in one pool, 
which all the jobs save to. It is, unfortunately, now full, and further 
jobs are in a holding pattern, waiting for me to label a new volume.

For some reason, when I was implementing Bacula I seem to have believed 
that when a volume was full, Bacula would purge the oldest jobs from 
that volume and then re-use the freed space immediately, although I 
cannot find any documentation to support that belief now. I've tried 
reducing the retention times and then updating and pruning the volume, 
which doesn't seem to cause any errors, but also doesn't solve my problem.

My questions to the list are these:

1) Is there any way to make Bacula re-use space taken by old jobs that 
can be safely pruned, without purging the volume?
2) What would be the best-practice way of making use of this type of 
storage (one big pool of disk)? Multiple File devices? Limits on the 
size of volumes, to force multiple volumes to be created inside the same 
File device? I've tried to read the documentation to glean this one, but 
I can't find anything that's helping me understand how to handle this 
situation.
3) What is the likelihood that I will have to purge the current full 
volume (and lose all of my existing backups) before I can move forward 
with a different configuration?

Thanks everybody for helping out a poor befuddled newbie!

Adam Compton
Network Administrator
Sierra Canyon School


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