Graham Keeling wrote:
> On Thu, Jul 16, 2009 at 12:09:32PM +0200, Marcin Radczuk wrote:
>
>> I'm trying use bacula more than a month. I have more than 2000 hosts to
>> backup. We want to do everyday backup. One Full backup per month and
>> Incrementals every other day. Now I have 10 bacula-sd and one bacula-dir
>> and I was add only 300 hosts to schedule. I automated hosts add to
>> bacula-dir, and I have one config file per host. Every host have his own
>> Job, Pool and Fileset in his config. Problem is that bacula can do one
>> backup per bacula-sd. I use Maximum Concurrent Jobs = 900 but I have one
>> Pool per host and bacula can't run another job on bacula-sd if other job
>> is running. Is that mean that I must do one pool per sd? We use Linux
>> machine (Debian Eatch/Lenny) on SD, FD and DIR. How can I boost bacula
>> performance?
>>
>
> I had similar problems. I had to define 'Maximum Concurrent Jobs' in many
> places to get it to work.
>
> Currently, I have it like this:
> bacula-dir.conf:
> Director { Maximum Concurrent Jobs = 20; }
> Storage { Maximum Concurrent Jobs = 20; }
> Client { Maximum Concurrent Jobs = 20; }
> Job { Maximum Concurrent Jobs = 1; }
> bacula-fd.conf:
> FileDaemon { Maximum Concurrent Jobs = 20; }
> bacula-sd.conf:
> Storage { Maximum Concurrent Jobs = 20; }
>
Not only that - but it may actually not be what you want. When you allow
an SD to have multiple concurrent jobs, the data from these jobs gets
interleaved on the volume. As a result, restores are slower, and you may
also end up having a 20 incremental backup jobs each spread out over the
same several volumes. That makes recycling difficult - even more so when
some of the backup jobs are full and some are incrementals. The bacula
manual has some additional considerations at
http://www.bacula.org/en/rel-manual/Basic_Volume_Management.html#SECTION002620000000000000000
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