Bacula-users

Re: [Bacula-users] Best way to backup simultaneously

2009-03-20 15:54:51
Subject: Re: [Bacula-users] Best way to backup simultaneously
From: Jason Dixon <jdixon AT omniti DOT com>
To: Kevin Keane <subscription AT kkeane DOT com>
Date: Fri, 20 Mar 2009 15:46:49 -0400
On Fri, Mar 20, 2009 at 02:37:06PM -0400, Jason Dixon wrote:
> On Fri, Mar 20, 2009 at 10:36:16AM -0700, Kevin Keane wrote:
> > Jason Dixon wrote:
> > >
> > > Here is an example from yesterday.  Job 11174 is the transaction logs.
> > > The others are OS jobs I ran manually from bconsole.
> > >
> > > Running Jobs:
> > >  JobId Level   Name                       Status
> > > ======================================================================
> > >  11172 Full    Unix_crank-va-3.2009-03-19_17.36.24 is running
> > >  11173 Full    Unix_crank-va-4.2009-03-19_17.39.25 is running
> > >  11174 Full    DatabaseArchives_crank-va-3.2009-03-19_17.40.27 is
> > > waiting for higher priority jobs to finish
> > > ====
> > >   
> > Concurrency is actually working fine for you. You see that jobs 11172 
> > and 11173 are both backing up at the same time.
> > 
> > Job 11174 would wait no matter what, because you gave it a lower 
> > priority than the other jobs. Give it the same priority as the others, 
> > and it may participate in the concurrency (unless there are other things 
> > that prevent it)

Just to be certain, I kicked off a few OS jobs just prior to the
transaction log backup.  I also changed the Storage directive to use
"Maximum Concurrent Jobs = 1" for FileStorage.  This forces only one OS
job at a time.

I would expect the DatabaseArchives_crank-va-3 job (11242) to run before
the queued OS jobs (11240, 11241) but that isn't the case.  I don't know
why this reports the other jobs as a higher priority.  And remember that
these are using *different* storage devices.  The OS jobs use
FileStorage, the transaction logs backup to tape (SDX-700C).


Running Jobs:
 JobId Level   Name                       Status
======================================================================
 11239 Increme  Unix_crank-va-4.2009-03-20_15.39.55 is running
 11240 Increme  Unix_puffer-va-3.2009-03-20_15.39.56 is waiting on max
Storage jobs
 11241 Increme  Unix_puffer-va-4.2009-03-20_15.39.57 is waiting on max
Storage jobs
 11242 Full    DatabaseArchives_crank-va-3.2009-03-20_15.40.59 is
waiting for higher priority jobs to finish
====


Thanks,

-- 
Jason Dixon
OmniTI Computer Consulting, Inc.
jdixon AT omniti DOT com
443.325.1357 x.241

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