EMA C++ Configuration Guide : 3 Configuration Groups : 3.5 Warm Standby Channel Group
 
3.5 Warm Standby Channel Group
WarmStandbyGroup is used only with the Consumer.
The WarmStandbyGroup contains a WarmStandbyList, which contains one or more WarmStandbyChannel entries (each uniquely identified by a <Name …/> entry). Each warm standby channel includes a set of warm standby channel parameters for specifying a starting active server, standby server(s), and a warm standby mode.