because job count or size limit exceeded
Append -------------------------------------------------------> Used
^ |
| First Job writes to Retention time passed |
| the volume and recycling takes |
| place |
| v
Recycled <--------------------------------------------------------Purged
Volume is selected for reuse
Bacula looks at the Volume Status property to select volumes for backup. I hope this helps!
Ambex
On 5/11/06,
Robert Wirth <[EMAIL PROTECTED]> wrote:
Hi,
I recently studied the Pool/Volumes section in the manual, but I didn't
find a hint about which algorithm is running when bacula has to choose
a tape from a pool for an actual job.
Example (or my actual problem, you know ;-)
- the system is an autochanger with barcode, 60 slots and 2 LTO-3 drives,
Bacula version 1.38.7, running well with dozends of clients, in principle
- there's a new pool with two freshly labeled, empty tapes
- two jobs are scheduled at the same time, doing full backup in that pool
the jobs have same priority et. al., only the client names differ
- the first tape is loaded into drive 0, the first job completes
successfully. The tape remains in the drive, with some 100 MBs written
out and state "Append"
- then, the second job unloads the tape, loads the other one in the same
drive and writes to _that_ tape. Why? The first tape was OK and loaded!
- finally I have both new tapes written, and will get some problems in
future, because I want the two tapes used alternately using automatic
volume retention and recycling. The parallel initial time stamp on the
tapes will be confusing.
I'm wondering if there's a clear algorithm in Bacula which decides to
choose some tape. I've got some more pools with similar configuration,
and there, the tapes are (until today) used one after aneother.
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
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