Hi Sahil,
Here is the answer to your quesion :
ftp://exftpp.symantec.com/pub/support/products/NetBackup_Enterprise_Server/290201.pdf
Check page 178 on the guide above
For snapshot client:
ftp://exftpp.symantec.com/pub/support/products/NetBackup_Enterprise_Server/290224.pdf
FYI: This is the forum for Puredisk and yu have posted your query at the wrong forum