On Monday 19 December 2005 23:39, Ben McClelland wrote:
> my version:
>
> Version: 1.38.0 (28 October 2005)
>
> Can you show a sample configuration setup of how I would spread jobs
> over different drives (if it's possible in the version I'm using)?
First, you need to download Bacula 1.38.3 (19 December 2005), then simply add
Prefer Mounted Volumes = no
to your Job resources in the Director, and run four or five jobs, and assuming
you have an Autochanger definition in your Storage daemon with four drives
configured, you should see your jobs select the four drives.
Here is what I have added to the manual. If this explanation is not
sufficient, please let me know:
If the Prefer Mounted Volumes directive is set to yes (default
yes), the Storage daemon is requested to select either an Autochanger or
a drive with a valid Volume already mounted in preference to a drive
that is not ready. If no drive with a suitable Volume is available, it
will select the first available drive.
If the directive is set to no, the Storage daemon will prefer
finding an unused drive, otherwise, each job started will append to the
same Volume (assuming the Pool is the same for all jobs). Setting
Prefer Mounted Volumes to no can be useful for those sites particularly
with multiple drive autochangers that prefer to maximumize backup
throughput at the expense of using additional drives and Volumes. As an
optimization, when using multiple drives, you will probably want to
start each of your jobs one after another with approximately 5 second
intervals. This will help ensure that each night, the same drive
(Volume) is selected for the same job, otherwise, when you do a restore,
you may find the files spread over many more Volumes than necessary.
>
> thanks,
> -Ben
>
> On Dec 19, 2005, at 3:33 PM, Kern Sibbald wrote:
> > On Monday 19 December 2005 23:21, Ben McClelland wrote:
> >> If I have an autochanger with 4 separate drives and 4 jobs (one for
> >> each of the drives) listed, do I have to have 4 separate pools for
> >> the media so the drive have their own pool?
> >
> > You can do that, but if you are using the very latest code, it is not
> > necessary. Bacula now knows how to spread jobs to separate drives.
> >
> > However, if you want all jobs of name X to go to a particular
> > Volume, and jobs
> > of name Y to go to a different Volume (and always the same one
> > until it is
> > full) then having separate pools will permit you to do that.
> >
> > --
> > Best regards,
> >
> > Kern
> >
> > (">
> > /\
> > V_V
--
Best regards,
Kern
(">
/\
V_V
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