'Creates snapshot volume for given group with snapshot_id.'

def _create_snapshot_volume(self, image):

    group = self._get_snapshot_group(image['pitGroupRef'])
    LOG.debug('Creating    snap    vol    for    group    %s', group['label'])
    label = utils.convert_uuid_to_es_fmt(uuid.uuid4())
    if self._is_cgsnapshot(image):
        return self._client.create_cg_snapshot_view(image['consistencyGroupId'], label, image['id'])
    else:
        return self._client.create_snapshot_volume(image['pitRef'], label, image['baseVol'])
