Rajan -
This is way too extensive of a question to answer with a community post !
We have a three day advanced class on Data Protection that covers many methods of replication and restore of data.
There are WBTs (Web Based Trainings) that are also available through the learning center:
http://learningcenter.netapp.com/
There's also the concept of RTFM - Read The Fabulous Manuals.
See all the documentation, including the Data Protection Guides for 7-Mode and Cluster Mode at:
http://mysupport.netapp.com/
I hope this response has been helpful to you.
At your service, Eugene E. Kashpureff, Sr.
Independent NetApp Consultant http://www.linkedin.com/in/eugenekashpureff
Senior NetApp Instructor, IT Learning Solutions http://sg.itls.asia/netapp
(P.S. I appreciate 'kudos' on any helpful posts.)
