>I am just now starting to use Bacula. One of the features I used in another 
>package was the ability to get rid of old backup data (I think y'all call 
>that prune) based on how much disk space was left on the backup device 
>(disk). Is this possible with Bacula?
>
Actually, pruning is removal of expired items from the catalog, the bacula 
database. It does not delete old data yet.

Assume you have 50 gigabytes disk partition allocated for backup data. You 
can make, say, 10 pcs of 5-gigabyte baclula volumes on that partition. 
Provided the retention times (how old data is considered expired) are set 
reasonably, the catalog information may get pruned earlier, but the actual 
data will be deleted only when you need to start using a "new" volume (this 
is called recycling in bacula).

So, you can keep the old data as long as there is sufficient disk space 
available. But I don't know how you could also keep the respective catalog 
entries exactly until that time -it lives according to retention times that 
are set in time units.

--
TiN 



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