'Deletes file on nfs share that backs a cinder volume.'

def _delete_backing_file_for_snapshot(self, snapshot):

    try:
        LOG.debug('Deleting    backing    file    for    snapshot    %s.', snapshot['id'])
        self._delete_file(snapshot['volume_id'], snapshot['name'])
    except Exception:
        LOG.exception('Could    not    delete    snapshot    %s    on    backend,    falling    back    to    exec    of    "rm"    command.', snapshot['id'])
        try:
            super(NetAppCmodeNfsDriver, self).delete_snapshot(snapshot)
        except Exception:
            LOG.exception('Exec    of    "rm"    command    on    backing    file    for    %s    was    unsuccessful.', snapshot['id'])
