RMAN Extreme Slow Performance

Dear All,

I am involve in an exercise of taking backup of few data files using RMAN. I have executed following script to take backup of the two data files file# 9 size 155GB, file# 10 size 156 GB, and it took 12 Hours and 24 Minutes to produce one 265 GB backup set.

$rman target /

RMAN>run{

allocate channel t1 type disk;

backup as compressed backupset format '/fra/backup%U' datafile 9,10;

}

I have to restore these files on separate machine, can any one please help me writing script to optimize this backup exercise?

Environment:

OS: RHEL 5.3 64-Bit, x86_64

Database: Oracle Enterprise Server 11.2.0.3.0 64-Bit, Non-ASM