public EvacuateAction evacuate(String serverId, String host) {
        return evacuate(serverId, host, null, null);
    }
public EvacuateAction evacuate ( String serverId , String host ) { return evacuate ( serverId , host , null , null ) ; }
Evacuates the server to a new host. The caller can supply the host name or id.

@param serverId
The server to be evacuated
@param host
The host name or ID of the target host (where the server is to be moved to).
@return The action to be performed
@see #evacuate(String, String, String, Boolean)