While this doesn't answer your question about tuning, it might help.

We have a similar situation, except with our AIX mail systems.

TSM had to scan 6+ MILLION files, nightly.  Took way too long to be
useful.

So instead, we do INCRBYDATE nightly and then on weekends do regular
incremental backups.






Brenda Collins <brenda.collins AT US.ING DOT COM>
Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
11/07/2002 09:44 AM
Please respond to "ADSM: Dist Stor Manager"


        To:     ADSM-L AT VM.MARIST DOT EDU
        cc:
        Subject:        Tuning to backup Millions of files


Hi!

I have an NT server that has an Optika application (Imaging) running on
it.
It has to search 2 million+ files nightly and ends up backing up about
100,000+ each night.  The problem is that it takes about 8 hrs. to do this
backup which is not acceptable.  Does anyone have any tuning parameters
that may help this issue?  The files can not be split up among directories
anymore than they are.  They want their cache files backed up so they copy
them over to another directory and we back them up from there.  We are
upgrading their hardware to see if that helps but if there is any tuning I
can do on the TSM side, that would help also.

Thanks,
Brenda Collins,
Sr. Storage Administrator
ING
612-342-3839