---------- Forwarded message ----------
From: John Drescher <drescherjm AT gmail DOT com>
Date: 2011/5/6
Subject: Re: [Bacula-users] Automatic Recycling Methods
To: João Alberto Kuchnier <joao.kuchnier AT dataprom DOT com>


2011/5/6 João Alberto Kuchnier <joao.kuchnier AT dataprom DOT com>:
> Hi everyone!
>
> I was having to many problems working with one pool for each day of the
> week. So, recently, I reconfigure all my bacula director to use ten
> tapes with only one pool. It's working fine now. I don't have a tape
> library, so manual changes are done every day (except weekends). From
> Monday to Saturday, I run differential jobs. On Sunday, only full jobs.
> However, the Monday's tapes are doing the Saturday diff, Sunday full and
> Monday diff jobs. Obviously, I need more space for this. These three day
> tapes (the two Monday one's) aren't capable of doing more than one
> backup. So, every Friday I have the delete one of the Monday's volume
> and rewind the tape manually. I can't use Maximum Volume Jobs option. I
> tough in the Maximum Volume Bytes instead. The other tapes, I can handle
> for up to two or three months
>

Maximum Volume Bytes really is not meant to be used with tapes at all.

> My doubt is if that will work properly or not. For example: Maximum
> Volume Bytes is 150g. In one three day tape jobs, it consumes 140g. Next
> time the tape will be used, it will erase before passing the 150g

No, bacula will not erase the tape unless the tape was already marked
as Full or Used and the retention period expired.

>or it
> will ask for a new tape when the job that overlaps the 150g ends?

It will ask for a new tape.

> I need
> bacula to detect this proximity to the volume bytes limit and recycle
> the tape before having and error or asking for another volume.
>
> Maybe I will have problems when a new holiday come-up, however, that
> will be another case to think and fix.
>
> Any suggestions?
>
Go back to using 1 pool per day.

John



-- 
John M. Drescher

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