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Re: [Bacula-users] Virtual Changer / Marking Volume "xxxxx" in Error in Catalog
2011-10-31 14:46:35
On 10/31/2011 12:44 PM, Sébastien WENSKE wrote:
Hi John,
Yes, there are a lot of jobs that starts at the same time for the same pool.
50 jobs ----\ 3 file devices /--------> pool A
---> DISKCHANGER------
50 jobs ----/ 20 slots \--------> pool B
My goal is to have concurrent running jobs.
" Warning: Volume "F0005" wanted on "VT-0"
(/tmp/autochanger/drive0) is in use by device "VT-1""
Is it possible to tell the autoloader to takes an appendable or any other available volume when I try to access an IN USE volume ?
Set "Maximum Volume Jobs = 1" in the Pool resource in
bacula-dir.conf. This means that a volume can only be assigned to a
single job. Bacula's volume selection is atomic, so even when jobs
are started at the same time and writing to the same pool, each job
will be assigned a different volume. Every job will have its own
volume. Also leave "Prefer Mounted Volumes = no", which allows more
than one volume from the same pool to be used at the same time.
Then for each virtual device associated with the Autochanger, set
"Maximum Concurrent Jobs = 1" in its Device resource configuration
in bacula-sd.conf. Job assignment is also atomic, so that ensures
jobs starting at the same time get assigned to different virtual
devices. I'm not sure that this setting is absolutely required when
the devices belong to an autochanger, but it doesn't seem to hurt
anything.
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