Paul,

Yes, We've noticed this.  

Our solutions: 
* Start backups when users have supposedly gone home.  
* Don't do 'hot backups'.  Have the application export its own backup to
a flat file (preferably on another file system), then backup up the flat
file.
* Just backup what you MUST daily, then do another schedule to pick up
the 'other stuff' on weekends. (Like, pick up user home directories and
data directories daily, backup the OS and software weekly, since I
changes little.  This keeps down the time to query the database about
whether or not something has been backed up.
* Use journaling locally (we have issues with it, but when it works it
helps)
 
These hints don't make all problems disappear, but they help.

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Paul Zarnowski
Sent: Monday, April 25, 2005 3:37 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: TSM causing client disk contention

We have a couple of clients here (Sun, Windows) who have noticed
dramatic
slowdowns on their application servers when TSM incremental backups
run.  Has anyone developed mechanisms to address this? TIA