The Resource Utilization parameter in your client dsm.opt will set the number 
of streams that the backup will use hence the number of drives.  So if you only 
have two streams going directly to tape you would only uses 2 tape drives.  

I think the Resource Utilization sets the multi-streaming based on file systems 
meaning one file system one stream? 3 File Systems 3 streams?

Regards,

Charles

-----Original Message-----
From: Balasubramanian Krishnamurthy [mailto:krish AT SYNOPSYS DOT COM]
Sent: Friday, March 28, 2003 7:32 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: TSM Server not using maximum number of drives.


Hi,

I have a TSM Server (version 5.1.6.2) with a library having 6 drives.
I have defined Maximum mounts allowed for one of my clients to be 4.
The Mount Limit in DEVCLASS is set to DRIVES.
However when this client backs up (Direct to Tape) it uses only 2 Drives
instead of 4,
Even though there are available Drives. There are enough Scratch tapes too.

I am not sure if I am missing any other parameter that is restricting the
backups to use only 2 drives instead of 4.

Thanks
Bala Krishnamurthy