We use simply a pool for each server/Type of jobs here
with 10 servers it give us a
30 pools
        server1D ( days )
        server1W ( weeks )
        server1M ( months )
        ...
Each pools has it's own rules ( recycling etc ..) and number of media,

We launch all them concurrently and everything work as expected (Sure Dir and 
Sd works a lot :-)


The other way you can do things are by using spooling which has it's pro/co.
see manual for that.


Kevin Keane wrote:
> Ulrich Leodolter wrote:
>> On Sat, 2008-11-15 at 01:23 -0800, Kevin Keane wrote:
>>   
>>> I'm using Bacula to back up 8 servers to a pool on a hard disk. To make 
>>> management somewhat easier, I configured bacula to create a new volume 
>>> (i.e., file) for each job. In the past, I only allowed one backup job to 
>>> run at a time (Maximum Concurrent Jobs = 1) and everything worked 
>>> beautifully.
>>>
>>> Today, I tried to speed up my backups by allowing multiple concurrent 
>>> backup jobs. Sure enough, the backups completed much faster - but 
>>> apparently multiple jobs now ended up in the same volume, despite the 
>>> Max Volume Jobs setting.
>>>
>>> Is this a bug? If so, is it something that has already been reported 
>>> and/or fixed? I'm using 2.4.2.
>>>
>>>     
>> Hi,
>>
>> It is documented, read the "Maximum Volume Jobs" description at:
>> http://www.bacula.org/en/rel-manual/Configuring_Director.html#SECTION0014150000000000000000
>>
>> Ulrich
>>   
> Ah! Thanks. In other words, there is a race condition. Is there a 
> workaround (other than foregoing concurrent jobs)?
> 
> Also, can you add a fix for this to the wishlist for bacula 3?
> 
> BTW, it seems that the actual behavior may be even worse than 
> documented. The documentation says that jobs may fail - but mine all 
> succeeded. According to the log file, they probably clobbered the 
> volume. Several of the jobs not only report that they are going to use 
> the same volume, but also that they are *overwriting* the same volume. I 
> see the following in the log for five separate backup jobs 
> (interestingly, only one says "wrote label..." - the other ones just 
> mark it as purged again and recycle it).
> 
> (in only one job)
> 
> 14-Nov 23:05 xxx-dir JobId 568: There are no more Jobs associated with Volume 
> "bacula0420". Marking it purged.
> 14-Nov 23:05 xxx-dir JobId 568: All records pruned from Volume "bacula0420"; 
> marking it "Purged"
> 14-Nov 23:05 xxx-dir JobId 568: Recycled volume "bacula0420"
> 14-Nov 23:05 xxx-dir JobId 568: Using Device "eSATADisk3"
> 14-Nov 23:05 xxx-sd JobId 568: Labeled new Volume "bacula0420" on device 
> "eSATADisk3" (/misc/BACKUP3).
> 14-Nov 23:05 xxx-sd JobId 568: Wrote label to prelabeled Volume "bacula0420" 
> on device "eSATADisk3" (/misc/BACKUP3)
> 14-Nov 23:05 xxx-dir JobId 568: Max Volume jobs exceeded. Marking Volume 
> "bacula0420" as Used.
> 
> (in all other jobs)
> 14-Nov 23:05 xxx-dir JobId 573: There are no more Jobs associated with Volume 
> "bacula0420". Marking it purged.
> 14-Nov 23:05 xxx-dir JobId 573: All records pruned from Volume "bacula0420"; 
> marking it "Purged"
> 14-Nov 23:05 xxx-dir JobId 573: Recycled volume "bacula0420"
> 14-Nov 23:05 xxx-sd JobId 573: Recycled volume "bacula0420" on device 
> "eSATADisk3" (/misc/BACKUP3), all previous data lost.
> 14-Nov 23:05 xxx-dir JobId 573: Max Volume jobs exceeded. Marking Volume 
> "bacula0420" as Used.
> 
> Thanks for your help!
> 
> Regards,
> 


-- 

     Bruno Friedmann


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