Hi........e-mail from IBM Matt Powell TSM L2 Support

I have AIX support, TSM development and TSM ATS Performance teams looking
at this problem.   The TSM teams are also responsible for DB2.

The only change to your system was the OS upgrade.  The TSM ATS Performance
team has had other customers report this same problem and they resolved it
by down leveling AIX to level 6.1.6.x.

I'm currently working with Mike Long (AIX support) to get to the bottom of
this.

We have tested TSM with AIX 7.1 and it also was shower for the DB backup
performance.    I have provided this information to Mike Long.

You can test a higher AIX patch level other then AIX 7.1 and if you get
good DB backup speeds, please let us know.

Best regards,
Matt Powell
TSM L2 Support

_____________________________________________
From: Lamb, Charles P.
Sent: Thursday, March 01, 2012 9:52 AM
To: 'ADSM-L AT VM.MARIST DOT EDU'
Cc: Hartman, Thomas J.
Subject: Slow TSM DB Backup


Hi.........

We are experiencing slow TSM DB backup process on both of our TSM systems using 
AIX V6.1.7.x, TSM V6.2.3.100, Atape v12.4.1.0.  The issues began immediately 
after we upgraded from AIX v5.3.12.3 to AIX v6.1.7.x. We have created a 
performance PMR#53387,379,000 with TSM support.  With 100GB data in a DB2 
database, we are seeing 30 to 60sec waits between .1/.2GB database transfers to 
IBM LTO4 tape drives via TSM q se screen. It is taking a very long time to 
complete a TSM DB backup. Before the AIX upgrade, the full DB backup took about 
10 minutes; now we are seeing backups of hours in length.

Anybody having these types of issues??