Hi Andreas,

thanks for your helpful answer!

Ok we know, that we know nothing quite right how its works. ;-)

I will test especially this new Feature if a released Version is available in 
suse rpm format. I would also find statistically overviews of volume usage 
very helpful for proactive changing havyly used Tapes.

ps: i should read more often the project page. ;-)

On Wednesday 11 July 2007 writes Andreas Helmcke:
> Falk Sauer wrote:
> > I mean on any post in the last weeks i've read (only with one eye) over a
> > option thats allows a volume after pruning, automatically moving to the
> > scratch pool.
> >
> > That can be a very nice feature, in the moment i make this manually.
> >
> > From which version of bacula is this option usable and how is the syntax?
> >
> >
> >From the chapter: "The Pool Resource" from the actual bacula manual:
>
>  The Pool Resource
>
>  RecyclePool = <pool-resource-name>
>       On versions 2.1.4 or greater, Bacula can recycle media in the pool of
> your choice. The most useful setup is to use Scratch.
>
>
> Version 2.1.4 is not quite right ;-). This option is under rework by Kern
> just at the moment so it will hopefully be usable with next release (2.1.26
> (beta version) or 2.2.0 (release version))
>
> > And how is the pruning working in the case of reuse a volume while the sd
> > needs a pruned volume and have more outtimed volumes as he needs in the
> > moment? Comes here the sd first and only momentarily unused volumes going
> > to the scratch pool or moves the pruning algo all pruned volumes to the
> > scratch pool and the sd reuse one of the volumes after them from scratch
> > pool?
>
> This is one of the points, which are changing at the moment ;-)
>
> But in general bacula will try to prune volumes only when absolutely
> necessary and prefer the requested pool. So it will most likely use volumes
> from the "wrong" pool only when there are no usable volumes in neither the
> "correct" pool nor the scratch pool.
>
> > Why i ask? If the sd picks a self pruned volume, the volume believe in
> > the same pool and the use structure of the volume is every time  the same
> > (monthly, weekly ...), if every time move the prune algo all of the
> > volumes to the scratch pool*, we become a better [stochastic/more evenly]
> > use structure of the volumes when the volumes rotate between the pools.
> >
> > *) i've noticed that's the scratch pool works like a fifo.
>
> Also it might be nice this is not a (main) feature of the pruning
> algorithm. But improving the tapemanagement is on the wishlist for bacula
> (see Item 25 on the projekts-list: http://www.bacula.org/?page=projects )


regards
   Falk


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