I believe so.  If you use rman to take an Oracle incremental level 1+
backup, Oracle does the work to work out what data to send.  It sends
its data over the SAN rather than IP which should improve performance.
If you use block level incremental backups then it should improve
performance by only reading the changed blocks.  That's my understanding
anyway.

-----Original Message-----
From: veritas-bu-bounces at mailman.eng.auburn.edu
[mailto:veritas-bu-bounces at mailman.eng.auburn.edu] On Behalf Of Priatna
Sent: 26 March 2007 04:35
To: veritas-bu at mailman.eng.auburn.edu
Subject: Re: [Veritas-bu] Oracle backup with or without Advance Client


If we are using Advance Client along with Oracle agent to take RMAN
incremental backup, does it reads the entire file or it reads only the
blocks that have changed? 
I didn't find the answer on the document.

Kai Stian Olstad wrote: 

Priatna wrote:

  

my question with regards oracle backup type :

- Is BLI - Advance Client still needed, to take incremental backup?

    



No, you do not need Advanced Client to take incremental backup.





  

- What is the additional benefit by using Advance Client BLI in the 

oracle type backup?

    



According to the Netbackup manual; saves time, less backup media,

reduces CPU and network overhead.



I recommend reading the manual

http://ftp.support.veritas.com/pub/support/products/NetBackup_Enterprise
_Server/279281.pdf





  





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