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def getClusterMachinesList(self):
        '''
        Get cluster hostnames of which this server is a member.
        '''
        _clusterdevices = []
        deviceRoot = self.dmd.getDmdRoot("Devices")
        for clusterdnsname in self.clusterdevices:
            try:
                clusterip = getHostByName(clusterdnsname)
                _clusterdevices.append(
                    deviceRoot.findDeviceByIdOrIp(clusterip)
                )
            except(gaierror):
                _clusterdevices.append('Unable to resolve hostname {0}'.format(
                    clusterdnsname))
        return _clusterdevices