On Sun, Oct 15, 2017 at 11:29:15AM +0200, Kern Sibbald wrote:
> Hello,
> 
> Bacula is not "truncating" your volumes.  It is just noticing that they have 
> no
> more files on them that are in the retention period you specified or set for
> the volumes.  It is then pruning certain volumes, which means that the file
> entries for files stored on those volumes will be removed.  It is also marking
> the volumes as purged -- i.e. they no longer have any files that are within 
> the
> retention period.
> 
> The volumes may then be reused (depending on variables you have set).  The 
> only
> time the volume is actually truncated is if you explicitly do it, or if the
> volume is purged, and Bacula needs a new volume.  In this second case, it will
> automatically truncate and reuse the volume.
> 
> Everything is determined by the retention periods you have set.  The manual 
> has
> a quite a lot of information about this process and much of it is very
> detailed.
> 
> Best regards,
> 
> Kern

Except that I'm explicitly calling trunccate in my BackupCatalog job:
Console = "prune expired volume yes"
Console = "truncate allpools"

And in 7.x it would truncate newly pruned volumes and not re-truncate
the others.



-- 
Larry Rosenman                     http://www.lerctr.org/~ler
Phone: +1 214-642-9640                 E-Mail: l...@lerctr.org
US Mail: 5708 Sabbia Drive, Round Rock, TX 78665-2106

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