"Average last minute latency in µs for drive API storage operations",
		append(allDriveLabels, apiL)...)
	driveHealthMD = NewGaugeMD(driveHealth,
		"Drive health (0 = offline, 1 = healthy, 2 = healing)", allDriveLabels...)

	driveOfflineCountMD = NewGaugeMD(driveOfflineCount,
		"Count of offline drives")
	driveOnlineCountMD = NewGaugeMD(driveOnlineCount,
		"Count of online drives")

}

func (d *naughtyDisk) Endpoint() Endpoint {
	return d.disk.Endpoint()
}

func (d *naughtyDisk) Hostname() string {
	return d.disk.Hostname()
}

func (d *naughtyDisk) Healing() *healingTracker {
	return d.disk.Healing()
}

func (d *naughtyDisk) Close() (err error) {
	if err = d.calcError(); err != nil {
		return err
	}
	return d.disk.Close()
}

func (d *naughtyDisk) calcError() (err error) {

	return client.endpoint.Host
}

func (client *storageRESTClient) Endpoint() Endpoint {
	return client.endpoint
}

func (client *storageRESTClient) Healing() *healingTracker {
	// This call is not implemented for remote client on purpose.
	// healing tracker is always for local disks.
	return nil
}

			metrics[d.Endpoint] = madmin.DiskMetric{NDisks: 1, Offline: 1}
			continue
		}

		var dm madmin.DiskMetric
		dm.NDisks = 1
		if d.Healing {
			dm.Healing++
		}
		if d.Metrics != nil {
			dm.LifeTimeOps = make(map[string]uint64, len(d.Metrics.APICalls))
			for k, v := range d.Metrics.APICalls {
				if v != 0 {
					dm.LifeTimeOps[k] = v
				}
			}

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

func readAllFileInfo(ctx context.Context, disks []StorageAPI, origbucket string, bucket, object, versionID string, readData, healing bool) ([]FileInfo, []error) {
	metadataArray := make([]FileInfo, len(disks))

	opts := ReadOptions{
		ReadData: readData,
		Healing:  healing,
	}

	g := errgroup.WithNErrs(len(disks))
	// Read `xl.meta` in parallel across disks.
	for index := range disks {
		index := index

		skipHeal.Store(true)
	}

	// Check if we should do healing at all.
	s.shouldHeal = func() bool {
		if skipHeal.Load() {
			return false
		}
		if s.healObjectSelect == 0 {
			return false
		}
		if di, _ := drive.DiskInfo(ctx, DiskInfoOptions{}); di.Healing {
			skipHeal.Store(true)
			return false
		}
		return true
	}

	// Enable healing in XL mode.
	if globalIsErasure && !cache.Info.SkipHealing {

			prometheus.BuildFQName(minioNamespace, "nodes", "offline"),
			"Total number of MinIO nodes offline",
			nil, nil),
		prometheus.GaugeValue,
		float64(nodesDown),
	)
}

// collects healing specific metrics for MinIO instance in Prometheus specific format
// and sends to given channel
func healingMetricsPrometheus(ch chan<- prometheus.Metric) {

		i := i
		wg.Add(1)
		go func() {
			defer wg.Done()
			if disks[i] == nil {
				return
			}
			di, err := disks[i].DiskInfo(context.Background(), DiskInfoOptions{})
			if err != nil || di.Healing {
				// - Do not consume disks which are not reachable
				//   unformatted or simply not accessible for some reason.
				//
				// - Do not consume disks which are being healed
				//
				// - Future: skip busy disks

## we do not need to fail here, since we are going to test
## upgrading to master, healing and being able to recover
## the last version.
if [ $failed_count_site1 -ne 0 ]; then
	echo "failed with multipart on site1 uploads ${failed_count_site1}"
fi

if [ $failed_count_site2 -ne 0 ]; then