The upgrade of the OS caused us a grief a couple of times. Here's
the note from the readme:
**********************************************************************
* Possible performance degradation due to threading *
**********************************************************************
On some systems Tivoli Storage Manager for AIX may exhibit significant
performance degradation due to TSM using user threads instead of
kernel threads.
This may be an AIX problem however, to avoid the performance degradation
you should set the following environment variables before you start
the server.
export AIXTHREAD_MNRATIO=1:1
export AIXTHREAD_SCOPE=S
************************************************************************
Run the command "env |grep AIXTHREAD". If it does not come back with
the 2 settings above, it may be your problem.
Ben
Micron Technology Inc.
-----Original Message-----
From: Rupp Thomas (Illwerke) [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, January 15, 2002 11:46 AM
To: [EMAIL PROTECTED]
Subject: Bad performance after upgrading from 3.7.2.0 to 4.1.1.0
Hi TSM-ers,
we upgraded a few days ago from TSM 3.7.2.0 to 4.1.1.0. This upgrade was
done by our
IBM CE (it's a NSM with an 3494 ATL).
After the upgrade the performance dropped dramatically. I think it's a
problem with the
database because the cache hit rate dropped below 95% - it was in the 99%
area before.
Nothing else was changed. Only AIX was upgraded to 4.3.3 and TSM was brought
to 4.1.1.0.
Are there any recommendations what settings I should change to bring
performance back
to normal?
Kind regards
Thomas Rupp
Vorarlberger Illwerke AG
MAIL: [EMAIL PROTECTED]
TEL: ++43/5574/4991-251
FAX: ++43/5574/4991-820-8251
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Vorarlberger Illwerke AG
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