Originally posted by zainalj
Then what is this statement refering to? incremental backup also available on export/import method not only on RMAN. Seem you are prefer RMAN rahter than dd. why??? is that just because you are using RMAN or what?

look, i never use RMAN before as well as dd for RAW, that why i'm asking your opinion. Is there someone else here have experiance on this?

As far as i'm concern RMAN:
- use another DB to store it catalog -> therefore it requre another space (This is wrong not true in 9i and RAC)
- RMAN db need to recover it is crash -> else main db unrecoverable
(Nope not true in 9i and RAC)
- lots of issue especially bug
(thats software for you :-))

well i suggest that you read the RMAN documentaion.I suspect you test with the 9i version of RMAN be comfortable and then evaluate yourself.
I have been there and done that i am not saying i am the best.But i have seen people striggling with raw file systems and DD dont do it..its for machoists..check up cluster file systems available form various vendors..read the docs esepecially on 9i and RMAN

RMAN in 9i doesnt require a separate DB it stores everything in the control file..read metalink .

regards
Hrishy