On Sep 9, 2010, at 2:41 PM, Tim Brown wrote:

> Client backup starts 8:30PM, It takes 3 hours to get to first processed 
> message
> ANS1898I ***** Processed       500 files *****
> ...

That's the time it takes to query the TSM server for the inventory of Active 
files for the file system: the more you have, the longer it takes.  Using 
Memoryefficient Yes spreads the server hit over time, and may be warranted in 
situations like where the backup session is going to run into the client's busy 
day period, and you don't want an enormous dsmc schedule process impairing 
memory performance.  (I'm painfully familiar with this in Cyrus mail system 
backups.)

Thereafter, the TSM client begins marching through the directories in the file 
system, comparing contents against its acquired inventory list.

Richard Sims  at Boston University