One more thought on this. Has anyone tried changing the time stamp on a
volume (so bacula thinks it's retention period is passed) and what affect
does this have in the big picture? In other words, would bacula get
confused by this?
I realize this wouldn't be best practices by any stretch. I'm only looking
at all ways I can retain part of a very large volume of data. Thanks.
On 5/29/07, Bob Gamble <[EMAIL PROTECTED]> wrote:
Well that clears pretty much all those questions up for me. Thanks very
much for the quick response.
On 5/29/07, Arno Lehmann < [EMAIL PROTECTED]> wrote:
>
> Hi,
>
> On 5/29/2007 9:35 PM, Bob Gamble wrote:
> > Hello,
> >
> > When I first started using bacula about 5 months ago, I used one
> > volume for everything.
>
> Oh. That's not really a good idea.
>
> > All seemed to be fine until I realized how
> > quickly I was going to use up the 2.5 terabytes. At the time, I
> > wrongly assumed six months would pass and I would have plenty of space
> > after the volume was recycled.
> >
> > Now, I have very little space left. I've split each backup into their
>
> > own pools (as described in
> > http://www.bacula.org/dev-manual/Automated_Disk_Backup.html
> > < http://www.bacula.org/dev-manual/Automated_Disk_Backup.html>) and
> the
> > large volume is no longer being written to as of the first week of
> > May. If I understand the documentation correctly I can recapture hard
>
> > drive space like this:
> >
> > Change the VolRetention period to three months instead of six (which I
> did)
> >
> > Set Autoprune and Recycle to Yes
> >
> > I'm hoping the VolRetention is measured from when the volume was first
>
> > used, which is back in January or February,
>
> No, the retention period starts when the volume was last used.
> Otherwise, you might lose valid backups.
>
> > and that even though the
> > available disk space on the bacula server shows less than 100 gb left,
>
> > it will overwrite space that has been taken up by the single large
> > volume when another volume needs the space.
>
> No, it will overwrite th huge volume only when it's recycled, which will
> not happen before the retention time has passed.
>
> > That is essentially my question. If I understand correctly, since
> > bacula holds on to data as long is it can until more space is needed,
> > will the bacula server at some point, always have a full hard drive?
>
> Not necessarily. In your setup, though, probably.
>
> > If I'm wrong, when does it clear the space taken by expired retention
> > periods? I wonder what options I have to save the last three months
> > of backups from the large volume while removing the backups whose time
> > has expired. Is there a way to do this?
>
> Set up migration (you'll need a second sorage device for it which could
> use the same archive directory) and migrate the valid jobs from the huge
>
> volume. Afterwards, manually recycle that volume. When it's re-used,
> Bacula will truncate it and your disk space will look much nicer :-)
>
> > Or do I need to just remove
> > the large volume to make more space? Thank you for any tips.
>
> That would be the simplest solution, but you will lose some backups you
> might consider valuable.
>
> Arno
>
> > --
> > BobG
> >
> >
> >
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> --
> IT-Service Lehmann [EMAIL PROTECTED]
> Arno Lehmann http://www.its-lehmann.de
>
>
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