Backup Performance

David

My environment is as following:
(1) DB on AIX
OS: AIX 4.3.3 ML 09
DB: DB2 UDB EE 7.2 Fixpak 05
Backup Software: Veritas Netbackup 4.5
DB Volume: 750GB
LTO Drive: 4 drivers
Backup time elapsed: 10h
(2) DB on HP-UX
OS: HP-UX 11i
DB: Oracle 8.1.7
Backup Software: Veritas Netbackup 4.5
DB Volume: 400GB
LTO Drive: 2 drivers
Backup time elapsed: 3h

I don't understand. The two databases (DB2 and Oracle) are using the
same SAN Storage (EMC), tape library (ATL) and NBU Master Server. Why
DB2 is using 10 hours with 4 LTO drivers as well as Oracle is only
using 3 hours with 2 LTO drivers?

Any tips would be greatly appreciated.

Nov 12 '05 #1