I checked on the server and the data source is already selected as WBEM in the SMH.
In regards to why using WBEM, we would like to be able to use it for the full functionality with SIM. My understanding is a system just recognized with SNMP doesn't have the capabilities to push out and update firmware? The health status of the CMS is Normal but the server I am trying to get working is Major since it can't be properly identified with WBEM.