'Map\'s the secondary volume or a LiveVolume to destsrv.
:param sclivevol: ScLiveVolume object.
:param scdestsrv: ScServer object for the destination.
:return: ScMappingProfile object or None on failure.'

def map_secondary_volume(self, sclivevol, scdestsrv):

    payload = {}
    payload['Server'] = self._get_id(scdestsrv)
    payload['Advanced'] = {'MapToDownServerHbas': True}
    r = self.client.post(('StorageCenter/ScLiveVolume/%s/MapSecondaryVolume' % self._get_id(sclivevol)), payload, True)
    if self._check_result(r):
        return self._get_json(r)
    return None
