This Paper is about the creation of a physical Stanby Database using OEM GC.
You will see that there is really nothing to it and using the Data Guard Broker, performing a switchover is as easy as 1,2,3,.
BTW, this works in both OEM GC 10.2.0.5 and 11.1
Creation of a physical Standby Database using OEM GC
Filed under: Grid Control 11.1, High Availability, Oracle Enterprise Manager 10 - 11g - 12c, White Papers