Thanks for your response. My requirement is I want to stage the save sets from 
the faster. Let me give the current backup statistics. A dbase backup using NMO 
over LAN gave a throughput of 40MB/s and it has taken ~ 16 hours to complete. 
The same backup after moving to disk based solution(adv_file) has completed in 
7 hrs of time with a throughput of 80 MB/s. But staging from disk to tape is 
going at 45 MB/s and so the total backup window is more than the backup to 
tape, because of staging 1 save set at a time. The drive is LTO2, I think this 
is the maximum an LTO2 drive can perform. 

Staging cannot read 2 save sets at a time from a adv_file, Any suggestions for 
tuning the performance of adv_file based backup.

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