Users do not fully understand how the global lock % for 2.1.+ hosts works in MMS. Please clarify and possibly link to:

• http://docs.mongodb.org/manual/reference/mongostat/#fields
• http://docs.mongodb.org/manual/reference/server-status/#server-status-locks

In a nutshell, MMS global lock % for 2.1.+ hosts is the global lock + the hotest database lock % (hotest == most locked/highest lock %).