Map<String, String> agentMgrConfigs = _configDao.getConfiguration("AgentManager", params);
value = agentMgrConfigs.get("port");
_mgmtPort = NumbersUtil.parseInt(value, 8250);
_listener = new SecondaryStorageListener(this);
_agentMgr.registerForHostEvents(_listener, true, false, true);
_itMgr.registerGuru(VirtualMachine.Type.SecondaryStorageVm, this);
//check if there is a default service offering configured