Actual experience with RMAN/NetBackup

We seem to be having some dismal performance with RMAN and NetBackup.  

308G in 3 hours with two tape drives and 9940 media.  

We've got databases that are 1.5 TB. We can do shadow copy by starting the sync 3-4 hours in advance and then only need 5-15 minutes of "down time". 3-4 hours for THOSE databases would be "good time".  

The speed is not looking good.  

Anyone getting WAY better than that? What equipment was used? Any "hidden" tweaks?  

What were the known "RMAN" parameters, etc?  

I'm not the one working with the vendors, but when I did, I usually did a lot of "Prove it to me."  

Thanks.  

Michael Kline
Database Administration
SunTrust Banks, Inc.
Mail Code TOC-7505

1030 Wilmer Avenue
Richmond, Va. 23227
Tel: 804.261.9446 Net: 643.9446

Cell: 804.744.1545
 <mailto:michael.kline_at_suntrust.com> michael.kline_at_suntrust.com  

Seeing beyond Money(sm)         

LEGAL DISCLAIMER
The information transmitted is intended solely for the individual or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of or taking action in reliance upon this information by persons or entities other than the intended recipient is prohibited. If you have received this email in error please contact the sender and delete the material from any computer.   

Seeing Beyond Money is a service mark of SunTrust Banks, Inc. [ST:XCL]              

--
http://www.freelists.org/webpage/oracle-l