Hello Frank,
obviously I found an expert... Thanks for your reply.
The reason why I decided to have so many different pools was motivated
by the (confusing) examples in the manual, so I DID read it, even more
than twice ;-)
My problem is, that I have to write to both tapes simultaneously for
timing reason (but spooling to my HD-RAID). That's why I don't have a
tape changer and introduced the two different pools for 'full' and
'incremental'. If it is possible to write in parallel from within only
one pool, that would make things easier.
Same for the 'mo-fri' pools. I thought I would need that complicated
setup in order to tell bacula to start a new tape every day as the
example given in the manual shows.
Thanks to your explanation I know now, that this is not necessary and
can be achieved by the 'volume use duration' setting. That's perfect and
answers one of my questions in the last mail completely.
But it brings up the retention period question:
* Assuming I do the 'full' and the 'incremental' backups, the retention
periods for both would be the same, 3 weeks,right? The 'incrementals'
can be taped over, after the 'full' has been replaced by a newer 'full'
and I don't want to keep the 'fulls' longer than the incrementals... Or
is it 3 weeks-1 day ? To avoid double entries for the first clients?
* Assuming I had also 'differentials' once a week as you suggested, the
retention periods would be 3 weeks for 'full', 1 week for 'diffs' and 1
week for 'incrementals', right ? Therefore, to avoid buying a third tape
drive I would have to put the 'diffs' into the 'incremental' pool,
because then retention periods differ. Do I get this right?
And a more practial question:
* 'Amanda' has this nice feature to send me a mail which tape to put
into each drive before leaving office ('amcheck' cronjob).
How does bacula remind me which tapes to put in today ?
Your help is really appreciated!
Thanks a lot,
Ralf
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