'Get volume status.
If \'refresh\' is True, run update the stats first.'

def get_volume_stats(self, refresh=False):

    if refresh:
        self._update_volume_stats()
    if self.failed_over:
        LOG.debug('%(source)s    has    been    failed    over    to    %(dest)s', {'source': self.backend_name, 'dest': self.active_backend_id})
    return self._stats
