'Remove Cinder management from ISE volume'

def unmanage(self, volume):

    LOG.debug('X-IO    unmanage    called')
    vol_info = self._get_volume_info(volume['name'])
    if (vol_info['location'] == ''):
        LOG.error('unmanage:    Volume    %s    does    not    exist!', volume['name'])
        RaiseXIODriverException()
