How to point Symantec Endpoint Protection(SEP) clients to a new Symantec Endpoint Protection Manager after you have either uninstalled, are going to decommission or replace the Existing Primary Symantec Endpoint Protection Manager (SEPM).
http://service1.symantec.com/support/ent-security.nsf/854fa02b4f5013678825731a007d06af/23d0a77b280a618988257567007caec1?OpenDocument
How to back up, restore, and/or move the Symantec Endpoint Protection Manager (SEPM) and embedded Database to another disk or system
http://service1.symantec.com/support/ent-security.nsf/854fa02b4f5013678825731a007d06af/05cb40a684bcb113882573800051078d?OpenDocument