How to move the SCVMM database to another server
You may find yourself in the position of needing to move the SCVMM database from one server to another for various reasons. For instance, this situation can occur when moving from local to remote SQL or from a stand-alone SQL server to a SQL cluster. The following instructions are provided as a guideline on how to accomplish this move from a SCVMM perspective.
System Center Virtual Machine Manager : How to move the SCVMM database to another server