Hi!
I've got two LTO-3 drives and with one autochanger device. Backups of
dozends of clients into several pools works well, in general. My Bacula
version is 1.38.7.
There remains one annoying problem:
I've defined a pool with two tapes for daily snapshot backups of
some data of temporary interest from several clients.
For simplicity, all snapshot jobs are defined identically.
As a consequence, they all have the same start time.
The idea is, that Bacula uses the first tape, until it's full,
then continues with the second tape.
The retention periods are choosed in a way that, when the second
tape will be completed (Full, Used etc), all data on the first tape
will be out of time, thus the first tape can be recycled automatically.
And the other way round...
But, good idea -- bad conversion:
Bacula uses the tapes in an arbitrary order. Some day, only
one tape is used. Another day, both tapes are used. As a
consequence, when tape recycling is needed some day, both tapes
will contain actual backup data.
F.i. have a look at the actual situation (the jobs start daily at 20:05 pm,
using the same Schedule and JobDefs)
Pool: Snapshot
+---------+-----+-----------------+----------+-----+---------------------+
| MediaId | ... | VolBytes | VolFiles | ... | LastWritten |
+---------+-----+-----------+-----------------+----------+-----+---------+
| 54 | ... | 497,058,209,311 | 520 | ... | 2006-06-09 20:14:29 |
| 86 | ... | 110,145,463,630 | 115 | ... | 2006-06-09 20:19:40 |
+---------+-----+-----------------+----------+-----+---------------------+
You can see: Tape 54 (the first in pool) is used mostly, but not exclusively,
although the tape is still in Append state.
I can't find a hint whether/how I can Bacula instruct to use the volumes
of a pool consecutively. I'd expect that this would be the default
behaviour, but, obviously, it's not.
Is there any solution with Bacula?
Best regards,
Robert
--------------------------------------------------------
++ German Research Center for Artificial Intelligence ++
--------------------------------------------------------
Robert Wirth, Stuhlsatzenhausweg 3, D-66123 Saarbruecken
@office: +49-681-302-5078/5572 ++ @fax: +49-681-302-5341
mailto:[EMAIL PROTECTED] ++ http://www.dfki.de/~wirth
--------------------------------------------------------
_______________________________________________
Bacula-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/bacula-users
