// the current heal status in one available disk
func (m *mrfState) shutdown() {
	atomic.StoreInt32(&m.closing, 1)
	m.wg.Wait()
	close(m.opCh)
	atomic.StoreInt32(&m.closed, 1)

	if len(m.opCh) > 0 {
		healingLogEvent(context.Background(), "Saving MRF healing data (%d entries)", len(m.opCh))
	}

	newReader := func() io.ReadCloser {
		r, w := io.Pipe()
		go func() {
			// Initialize MRF meta header.
			var data [4]byte

	logger.LogIf(ctx, "internal", err, errKind...)
}

func healingLogIf(ctx context.Context, err error, errKind ...interface{}) {
	logger.LogIf(ctx, "healing", err, errKind...)
}

func healingLogEvent(ctx context.Context, msg string, args ...interface{}) {
	logger.Event(ctx, "healing", msg, args...)
}

func healingLogOnceIf(ctx context.Context, err error, errKind ...interface{}) {