When I did that upgrade, I noticed the same thing initially. I
opened up a case with support, ran traces, etc etc. Expanded the buffp,
tweaked VM settings, etc. etc.
What it came down to was that for whatever reason, the 'Expire
inventory' process seemed to suddenly have a very large performance
impact.
I found that I could no longer just let it run for the day and a
half that it takes to run. If it was running when the bulk of the
clients incremental backups were running, the server just slowed to a
crawl. I started running the expire every day with the "dur=" option so
it will stop before the backup window, and things now flow much better
over the evening.
That was my experience. Your mileage may vary, some assembly
required, do not pass go, do not collect $200, etc.
Ben
-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of
Gill, Geoffrey L.
Sent: Tuesday, September 13, 2005 9:38 AM
To: ADSM-L@VM.MARIST.EDU
Subject: Slow backups after TSM Server upgrade
Yesterday I upgraded my TSM server to 5.2.6.1 from 5.1.6.3. While the
system was running on AIX 4.3.3 and TSM 5.1.6.3 backups were fairly
quick and typically if I saw a backup running in the morning when I came
in it pointed to a NIC/SWITCH mismatch. After upgrading AIX to 5.2, TSM
still 5.1.6.3, the system seemed the same, and by the way I should
mention the system was running 64 bit mode but was NOT running 64 bit
TSM code.
When I upgraded TSM yesterday I changed to the 64 bit code thinking
things should be "at least as fast". As I watched backups last night
things seemed quite slow. The database backups seem to have quadrupled
in the time it takes to complete one. This morning I also see 7 backups
still running.
So the question is have others seen a drop in performance after
upgrading to
5.2 TSM?
Thanks for any insight you can provide,
Thanks,
Geoff Gill
TSM Administrator
SAIC M/S-G1b
(858)826-4062
Email: <mailto:[EMAIL PROTECTED]> [EMAIL PROTECTED]
