Bacula-users

[Bacula-users] Completely confused by concurrency and multidev autochanger

2009-03-14 13:06:54
Subject: [Bacula-users] Completely confused by concurrency and multidev autochanger
From: cpreston <bacula-forum AT backupcentral DOT com>
To: bacula-users AT lists.sourceforge DOT net
Date: Sat, 14 Mar 2009 12:56:50 -0400
I'm resending this original poster's question because the connection between 
bacula-users and the forum was down for a time.  There will be three more like 
this.


emf1123 wrote:
> Please..  someone.... explain how I can convince Bacula to do what I want
> with concurrency/priority/multiple devices, and not what it's doing now.
> 
> Here's what I have:
> one Autochanger
>   made of Four Device stanzas.   (they're File's on disk using disk_changer)
> 
> One Pool. Lots and lots of virtual tapes.
> 
> a small pile of client Jobs to that Pool
> 
> I have tried the "Prefer Mounted Volumes = no" configuration.  I have tried 
> increasing my "Maximum Concurrent Jobs".  I have tried setting my jobs to be 
> the same priority and different priorites.   I've tried with and without 
> spooling.   I can't get it to use all four Devices in the Autochanger at the 
> same time for writing!  
> 
> increasing concurrency only causes bacula to write multiple jobs 
> simultaneously to the same virtual tape, which is absolutely not what I 
> wanted.   Am I missing a configuration setting to force "writers" to max at 1 
> for each Device? 
> 
> Does someone have an example configuration set that they can share that  
> forces each FileDirector to one job, each StorageDirector to as many jobs as 
> it has Devices, each Device serialized to one job at a time, and the director 
> to run as many simultaneous jobs as it has available Devices on 
> StorageDirectors for the target Pool ???


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