def METHOD_NAME(self):
    '''
    Get hostnames of servers belonging to this cluster.
    '''
    _clusterhostdevice = []
    deviceRoot = self.dmd.getDmdRoot("Devices")
    for clusterhostdnsname in self.clusterhostdevices:
        try:
            clusterhostip = self.clusterhostdevicesdict[clusterhostdnsname]
        except (KeyError, AttributeError):
            if not hasattr(self, 'clusterhostdevicedict'):
                self.clusterhostdevicesdict = {}
            try:
                clusterhostip = self.clusterhostdevicesdict[clusterhostdnsname] = getHostByName(clusterhostdnsname)
            except(gaierror):
                _clusterhostdevice.append('Unable to resolve hostname {0}'.format(clusterhostdnsname))
                continue
        _clusterhostdevice.append(deviceRoot.findDeviceByIdOrIp(clusterhostip))
    return _clusterhostdevice