yes, it will use the 80 volumes and distributing the IOs is good for the
global performance !
The number of tapes depends on the number of drives you have online,
regards,
> René Lambelet
> Nestec S.A. / Informatique du Centre
> 55, av. Nestlé CH-1800 Vevey (Switzerland)
> *+41'21'924'35'43 7+41'21'924'28'88 * K4-117
> email [EMAIL PROTECTED]
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>
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>
>
> -----Original Message-----
> From: Zoltan Forray/AC/VCU [SMTP:[EMAIL PROTECTED]]
> Sent: jeudi, 13. septembre 2001 17:17
> To: [EMAIL PROTECTED]
> Subject: OS/390 TSM usage of disk volumes
>
> I have a question about how the OS/390 version of TSM utilizes disk
> storage pools and why and possible future impact.
>
> Currently, my disk "landing zone" storage pool has 38-individual DASD
> volumes, for a total of 90G+. I noticed that when I do a Q VOL STG=, that
> *EVERY* "volume" (i.e. data set) has something in it, rather than fill up
> one before going to another (this is a royal pain when trying to
> delete/add volumes, but that is a different story.....). So, when doing
> migration from this pool to tape, it has to perform I/O's to 38 disk
> volumes as well as the tapes.
>
> I am getting ready to more than double this pool. Does this mean that TSM
> will scatter data across all 80+ volumes ?
>
> This seems like a lot of unnecessary overhead.
>
> Any thoughts on this ?
> ===========================
> Zoltan Forray
> Virginia Commonwealth University
> University Computing Center
> e-mail: [EMAIL PROTECTED]
> voice: 804-828-4807
