ADSM-L

Re: [ADSM-L] Help! Trying to figure out what caused slow performance

2007-08-07 14:42:43
Subject: Re: [ADSM-L] Help! Trying to figure out what caused slow performance
From: Richard Sims <rbs AT BU DOT EDU>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Tue, 7 Aug 2007 14:40:29 -0400
On Aug 7, 2007, at 9:38 AM, Joni Moyer wrote:

Any suggestions/help in determining what the cause of this might be
would
be greatly appreciated!!!!!
The usual starting places...
Performing Query SEssion during the activity gives you a real-time look;
and performing 'netstat' on AIX allows you to gauge delay source.
Performing Query Node ... Format=Detailed right after the backup will
yield
wait time values which help show where delays were occurring.  Or you
can
look at the accounting records.

You don't indicate the nature of the backup.  Whereas there were ANE
records
in the TSM server Activity Log, this should not have been an API-
based TDP
type of backup, thus suggesting that either Oracle was shut down or
that the
backup was "wild", and so standard issues affecting throughput
(client factors,
including file region locking; TSM storage pool speed, etc.).  See
the TSM
Performance Tuning Guide for many things to review.  ADSM QuickFacts
summarizes
numerous elements which can affect backup performance.

   Richard Sims