Re: [ADSM-L] Reclamation
2008-12-09 08:49:53
Just a dumb question: Is there a possibility to do the reclamation of the
primary tape pools via the cached data in the disk pools?
kind regards,
Stephan
2008/12/8 Allen S. Rout <asr AT ufl DOT edu>
> >> On Mon, 8 Dec 2008 12:27:46 -0500, "Lepre, James" <jlepre AT SOLIXINC DOT
> >> COM>
> said:
>
> > I have a question on how reclamation works. I have a small library
> > with 24 slots and 2 Drives. When I start reclamation say at 90% it
> > puts in tape 1 and then put in another tape to reclamate to. It
> > then ask for tapes that are not in the library so I am constantly
> > checking in and out tapes to reclamate this one tape. Could someone
> > tell me how the process actually is supposed to work maybe I am
> > doing something incorrect.
>
> In general, you'll expect a full volume to have at least two partial
> files (aggregates) on it: the one hanging off the beginning, and the
> one hanging off the end.
>
> You may have several others, too, if you are constricted (as it
> appears you are): Every time you finish a volume, there's a partial
> file there. It's possible the "other" halves might get
> disproportionately collected.
>
> So, the checking in and out is to be expected.
>
>
> How many tapes in your collection? You may be able to make a case for
> acquiring a larger library. This can be exceptionally attractive if
> you can point out that now you have to be onsite to service restores.
> If you have all your data in the library, most activity can go
> unattended.
>
> I view handling-by-humans as the largest risk my tapes go through.
> Minimizing those occasions is well worth it, in the long run.
>
>
> - Allen S. Rout
>
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