'Find the list of Dell domain objects associated with the cportid.
:param cportid: The Instance ID of the Dell controller port.
:returns: List of fault domains associated with this controller port.'

def _find_domains(self, cportid):

    r = self.client.get(('StorageCenter/ScControllerPort/%s/FaultDomainList' % cportid))
    if self._check_result(r):
        domains = self._get_json(r)
        return domains
    LOG.error('Error    getting    FaultDomainList    for    %s', cportid)
    return None
