According to the training manuals for TSM 4.X and 5.X, you should not have
more than 12 DB volumes.  Yet we have 16, and at one point we had 32 and saw
no performance degradation.  There seems to be no end to the debate on this
issue.  We are on AIX 4.3.3 and have been with this config from 4.2.X up to
5.1.6.2.

-----Original Message-----
From: Miller, Ryan [mailto:Miller.Ryan AT PRINCIPAL DOT COM]
Sent: Monday, June 16, 2003 4:20 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: Maximum number of DB volumes


Not 100% sure about running on AIX, but we run 17 TSM servers on OS390 and
have some running 30 DB vols at 2.4 GB per vol, we have no degradation from
it.  We have been running this way from all v 4.1 up to v 5.1.6.

Ryan Miller

Principal Financial Group

Tivoli Certified Consultant
Tivoli Storage Manager v4.1


-----Original Message-----
From: Ford, Phillip [mailto:phillip.ford AT SPCORP DOT COM]
Sent: Monday, June 16, 2003 3:05 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Maximum number of DB volumes


We have TSM version 4.2.1.15 (moving soon to a 5... level) running on AIX
4.3.3.  Another TSM manager told me that there should be a maximum of 16 DB
volumes.  They said that there could be more but that they had heard that
there is system degradation if one was to use more that 16 DB volumes.  Has
anyone else heard of this.  It was new to me and I was just wondering what
the situation was.


Thanks


--
Phillip Ford
Senior Software Specialist
Corporate Computer Center
Schering-Plough Corp.
(901) 320-4462
(901) 320-4856 FAX
phillip.ford AT spcorp DOT com



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