'This method unmaps a volume from a host.
Removes volume from the storage group that belongs to a masking view.
:param array: the array serial number
:param volume: volume object
:param device_id: the VMAX volume device id
:param extra_specs: extra specifications
:param connector: the connector object'

def _remove_members(self, array, volume, device_id, extra_specs, connector):

    volume_name = volume.name
    LOG.debug('Detaching    volume    %s.', volume_name)
    return self.masking.remove_and_reset_members(array, device_id, volume_name, extra_specs, True, connector)
