Hi Kuber,Katana
>I want to find out on how to integrate Snapmanager for Exchange with OCUM for Clustered mode 6.1?
Unfortunately today we don't have integration between Snapmanager of Exchange with OCUM 6.1.
>Do I need to use the OCUM core package to make this work?
No. this is not integrated with SME
AFAIK third party integration are available for Commvault Snapprotect and it coming for Symantec Replication Director
-Srinivas