On Fri, 2007-11-02 at 21:38 +0100, Arno Lehmann wrote:
> Hi,
> 
> 02.11.2007 21:26,, Craig White wrote::
> > On Fri, 2007-11-02 at 15:08 -0400, John Drescher wrote:
> >> On 11/2/07, Craig White <[EMAIL PROTECTED]> wrote:
> >>> I am a bit befuddled.
> >>>
> >>> I have a 'Full' backup which consists of 4 jobs but it extends onto 2
> >>> tapes.
> >>>
> >>> the Pool permits 4 jobs
> >>>   Maximum Volume Jobs = 4
> >>>   Volume Retention = 19d
> >>>   Volume Use Duration = 4d
> >>>
> >> I believe "Maximum Volume Jobs" here will allow at most 4 jobs to a
> >> single volume and since there are only 2 jobs written to the last
> >> volume it can hold 2 more.
> > ----
> > I get that. I can't change the number to 2 because then it would stop
> > after the second job and force me into a new tape leaving half the first
> > tape filled and not enough room on second tape to complete the next 2
> > jobs (the second being a standard BackupCatalog job).
> > 
> > I find it hard to believe that I am the only one who is spanning tapes
> > on a single Pool and wanting to have the last tape marked 'Used' instead
> > of 'Append'
> 
> True... but as it is, many users try to avoid problems they might run 
> into when jobs are added, or don't run for whatever reason, so they 
> don't limit the volume use by the number of jobs, but rather by the 
> time it can be used after an initial write ;-)
> 
> So my suggestion is to use "Volume Use Duration" instead of the job 
> limit. Depending on your needs, limiting by size might also be useful 
> - "Maximum Volume Bytes" is the corresponding option.
> 
> Does that help?
----
in that I have set (as noted above) Volume Use Duration to 4d, if it
marks the set as 'Used' on Tuesday (Friday, Saturday, Sunday, Monday)
constituting the 4 days and then Bacula respects the 'Volume Retention',
I am good to go.

As you might expect, I am concerned that the next usage of ThursdayPool,
that it asks for this Volume because it is still marked 'Append' and I
would want it to ultimately ask for the one of the ThursdayPool volumes
whose 'Volume Retention' has expired.

Craig


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