ADSM-L

Re: Managing Tapes

1997-08-06 08:20:39
Subject: Re: Managing Tapes
From: Gerhard Ginzler <gerhard.ginzler AT AKH-WIEN.AC DOT AT>
Date: Wed, 6 Aug 1997 13:20:39 +0100
> Brenda,
>         You can limit the number of tapes in a storagepool with the UPDATE
> STGPOOL <poolname> MAXSCRATCH=nnnn.  If collocation is enabled and there
> isn't a scratch tape available, ADSM will write data for multiple
> clients to the same tape (more or less turns off collocation).
>
> Tim Pittson
> tpittson AT himail.hcc DOT com
>

When ADSM returns a tape to the scratch pool, the "free scratch tape
counter" will be decreased by one. The TMS has a reuse delay of 1 day.
Therfore it can occur that the scratch pool is exhausted, but ADSM
isn't aware of that and claims a new tape from the pool. The result
is ANR5241E ( ... mount SCRTCH cancelled.) and no backup goes through.
Is it possible to handle this situation in the mount exit machine
(server platform is vm, TMS is Sterling's VM:Tape)?
Regards,
Gerhard Ginzler
================================================================
Gerhard Ginzler
--------------------------------  gerhard.ginzler AT akh-wien.ac DOT at
Institut f. Medizinische Computerwissenschaften (IMC)
Institut f. Medizinische Computerwissenschaften (IMC)
Universitaet Wien / Allgemeines Krankenhaus
Waehringer Guertel 18-20
A-1090 WIEN                        (+43)(1)40400-3633, -1636(Fax)
=================================================================
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