Thanks Alan, this looks good.  This is very similar to the problem we have.
For example I run migration on our 3 disk pools to clear them down at 18:00,
21:00 and 22:00 respectively.  they finish at 18:32, 21:30 and 22:30
respectively.  Can I assume any migration after 22:30 would indicate spill
processing is occurring ??

Also I may utilise the 1 GB file limit, but I assume that every time a file
is greater than 1 GB then a tape mount would be requested ???

> ----------
> From:         Alan Davenport[SMTP:Alan.Davenport AT SELECTIVE DOT COM]
> Reply To:     ADSM: Dist Stor Manager
> Sent:         26 October 2001 13:23
> To:   ADSM-L AT VM.MARIST DOT EDU
> Subject:      Re: Spill processing please help
>
> Hello John. I'm in the same situation except that getting extra 3390 DASD
> devices for my pool is like pulling hens teeth! (:
>  Our client backup window starts at 20:00 and in the morning I do this
> command from an admin command line:
>
> Q AC BEGINT=20:00 BEGIND=-1 S=MIGRATION
>
> This will show me if migration has kicked in during the backup window.
>
> Also, you can limit the size of the files that go to the disc pool. I have
> my limit set at 1GB to prevent large files from filling the pool. The
> command to do this is:
>
> UPD STG poolname MAXSIZE=1G NEXTSTGPOOL=your_tape_pool_name
>
> If you use the MAXSIZE parm, in this case, any file larger than 1GB will
> go
> directly to tape bypassing the disc pool.
>
> Hope this helps!
>
>     Take care,
>         Al
>
> Alan Davenport
> Senior Storage Administrator
> Selective Insurance
> alan.davenport AT selective DOT com
> (973)948-1306
>
>
> + -----Original Message-----
> + From: Doherty, John (ANFIS) [mailto:john.doherty AT ANFIS.CO DOT UK]
> + Sent: Friday, October 26, 2001 7:56 AM
> + To: ADSM-L AT VM.MARIST DOT EDU
> + Subject: Spill processing please help
> +
> +
> + Hi folks I am back on the newsgroup because I desperately
> + would like some
> + information.  We currently run TSM 3.1 on an MVS 390
> + mainframe.  As you are
> + aware definition of the disk storage pools contain an option
> + to migrate to
> + the next storage pool (in our case cartridge) if the disk
> + pool exceeds a
> + specified value.  In our case we have these migration
> + thresholds set at high
> + 90% low 70% this means when the disk pool exceeds 90% migrate
> + data until it
> + reaches 70% and then stop.  I believe this is different from a forced
> + migration where you empty the storage pool in preparation for the next
> + backup process.
> +
> + The question I have been asked is how do I know if we are
> + spilling into this
> + cartridge pool, i.e. how often is the disk pool exceeding 90%
> + and forcing
> + migration.  This being the case we will incur extra
> + processing and require
> + to increase the size of the DASD pool.
> +
> + Can anyone tell me how to find out if this spill process is
> + occurring.  I.e.
> + does anyone have a script, batch job etc. on how to determine
> + when (if) this
> + is happening.  Even what I should be looking for to determine
> + if this is
> + happening would be helpful.
> +
> + Await your replies
> +
> + Thanks John
> +
> +
> + > John Doherty
> + > Technical Specialist
> + > Storage Management
> + > Email: john.doherty AT anfis.co DOT uk
> + > Tel: +44 (0) 141 275 7793
> + > Fax: +44 (0) 141 275 9199
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