ADSM-L

Re: Memory sizing for new TSM server

2003-04-11 18:50:06
Subject: Re: Memory sizing for new TSM server
From: Joshua Bassi <italianharleyguy AT SBCGLOBAL DOT NET>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Fri, 11 Apr 2003 15:49:29 -0700
I would say buy 8GB of real memory and allocate 4GB to each LPAR/TSM
Server.  Then double the 2GB recommended 262144 bufpoolsize to 524288.


--
Joshua S. Bassi
IBM Certified - AIX 4/5L, SAN, Shark
Tivoli Certified Consultant -ADSM/TSM
eServer Systems Expert -pSeries HACMP

AIX, HACMP, Storage, TSM Consultant
Cell (831) 595-3962

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Talafous, John G.
Sent: Friday, April 11, 2003 3:20 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: Memory sizing for new TSM server


Joshua,
  Thanks for the feedback. This is REAL close to what we are looking to
do. You mention that 2GB is a good amount and that we could even go to
4GB.  Our experience at TSM 4.1 revealed MANY memory errors and TSM
internal errors. Hence, my question was posted.  (We are now at a later
TSM Server version!) We are looking at a LARGE pSeries server to handle
backups in an LPAR environment. Again, the question becomes, how much
memory should this LARGE pSeries machine have?
  I am interested in knowing if there is some architectural limit as to
how much memory TSM can use? If that is the case I can easily determine
how much memory we should purchase.  For example: If a TSM Server cannot
use more than 4GB of memory and we intend to utilize 2 LPARS running TSM
Server, then it would not benefit us to install more than 8GB of real
memory.  But, if the architectural limit is 2GB, then we would not
benefit by installing more than 4GB of real memory.
  How much memory should a pSeries have installed in order to run two
(2) TSM Servers?

Hmmmm...
TIA,
John G. Talafous              IS Technical Principal
The Timken Company            Global Software Support
P.O. Box 6927                 Data Management
1835 Dueber Ave. S.W.         Phone: (330)-471-3390
Canton, Ohio USA  44706-0927  Fax  : (330)-471-4034
talafous AT timken DOT com           http://www.timken.com


**********************************************************************
This message and any attachments are intended for the individual or
entity named above. If you are not the intended recipient, please do not
forward, copy, print, use or disclose this communication to others; also
please notify the sender by replying to this message, and then delete it
from your system.

The Timken Company
**********************************************************************

<Prev in Thread] Current Thread [Next in Thread>