Hello,
Did you check these Articles?
How to move Symantec Endpoint Protection Manager embedded database file to another folder?
http://www.symantec.com/business/support/index?page=content&id=TECH95068
How to back up, restore, and/or move the Symantec Endpoint Protection Manager (SEPM) and embedded Database to another disk or system
http://www.symantec.com/business/support/index?page=content&id=TECH102738
I am sure these Articles are more Trust worthy as they are from Symantec Knowledgebase.