A heterogeneous high availability cluster manager implements a method involving a reception of a first cluster management command in a first cluster management protocol, a conversion of the first cluster management command to a second cluster management command in a second cluster management protocol, and a sending of the second cluster management command to a first node in a heterogeneous cluster management group. To facilitate the conversion of the first cluster management command to the second cluster management command, the second cluster management protocol is registered with the manager whereby the first cluster management command is mapped to the second management command.