They said for effeciency. Maybe it was just for our situation. We were
creating a 300GB database and were at odds to how many volumes we should
create. The TSM people said don't use more than 10. Once you get over 10
its really too much I/O and TSM will not be very efficient in writting to
your DB's.

Thanks,
Robert Rippy.



From: Niklas Lundstrom <niklas.lundstrom AT FORENINGSSPARBANKEN DOT SE> on
      11/22/2002 09:46 AM

Please respond to "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>

To:   ADSM-L AT VM.MARIST DOT EDU
cc:
Subject:  Re: Relocating TSM DB (storage)

That's interesting. Did they explain why you shouldn't use more than 10 db
vols?

Regards
Niklas Lundström

-----Original Message-----
From: Robert L. Rippy [mailto:robert_rippy AT KINDREDHEALTHCARE DOT COM]
Sent: den 22 november 2002 15:35
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: Relocating TSM DB (storage)


Yes, you are correct. Create the new DB's and extend the DB and then delete
the old DB's. The data will migrate over to the new extended space. Any
reason you had 37 1GB volumes for your DB's. IBM told me not to really go
over 10 volumes on your DB and to be sure they aren't on the same drive if
you can help it.

I would suggest that if you could, create 5 8GB new volumes for a total of
40GB and move the DB over to the new 8GB partitions.

Thanks,
Robert Rippy



From: "Thach, Kevin" <KThach AT COVHLTH DOT COM> on 11/22/2002 09:30 AM

Please respond to "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>

To:   ADSM-L AT VM.MARIST DOT EDU
cc:
Subject:  Relocating TSM DB (storage)

I am wanting to move our TSM DB which is currently on ESS, and has 37  1GB
dbvolumes, to another set of ESS disk.  If I define the new dbvolumes on
the
new disks, do I then just extend the db, and then do a del dbvol on the old
ones?  Does the delete make the data migrate over?

Do I have to do a reduce db for any reason before I do the delete dbvol?
Can
I do the delete with the server up and running?

Thanks

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