Re: VOLUME USAGE
1996-02-21 07:19:28
subject: RE:VOLUME USAGE
>The basic problem is that this data is getting big, and how do you manage
>it in a reasonable manner without propagating storage devices all over the
>place. Suggestions for alternative solutions are actively sought to help
>discover better solutions to this problem.
>Paul Bradshaw
Why not introduce an extra parm for ADSM tape-storagepools, say SUBPOOLS.
(=number of "subpools").
These "subpools" within a tapepool are "LOGICAL", and each defined node
will be assigned a subpoolnumber. Multiple nodes can share a subpool.
When migration is in effekt, scratch volumes will be assigned within the
sphere of a subpool, rather than a node (colocation on) or the whole
tapepool (collocation off). This will prevent the number of "filling" volumes
from being higher than the SUBPOOLS value, and in case of disaster-restore,
the amount of volumes need will be appx. TOTALVOLUMES/SUBPOOL-value.
Kees Koopman
Hoogovens Staal
Netherlands
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