NumVersions int
	//  The modtime of the successor object version if any
	SuccessorModTime time.Time

	// Checksums added on upload.
	// Encoded, maybe encrypted.
	Checksum []byte

	// Inlined
	Inlined bool

	DataBlocks   int
	ParityBlocks int
}

// ExpiresStr returns a stringified version of Expires header in http.TimeFormat
func (o ObjectInfo) ExpiresStr() string {
	var expires string

          "datasource": {
            "type": "prometheus",
            "uid": "${DS_PROMETHEUS}"
          },
          "editorMode": "code",
          "exemplar": false,
          "expr": "max(minio_node_drive_online_total{job=~\"$scrape_jobs\",server=\"$server\"})",
          "format": "time_series",
          "hide": false,
          "instant": true,
          "interval": "",
          "intervalFactor": 1,

	for _, collectorPath := range h.metricsData.collectorPaths {
		if collectorPath.isDescendantOf(path) {
			gatherer := h.metricsData.mgGatherers[collectorPath]

			// For Bucket metrics we need to set the buckets argument inside the
			// metric group, so that it will affect collection. If no buckets
			// are provided, we will not return bucket metrics.
			if bmg, ok := h.metricsData.bucketMGMap[collectorPath]; ok {
				if len(buckets) == 0 {

			objInfo.RestoreOngoing = restoreStatus.Ongoing()
			objInfo.RestoreExpires, _ = restoreStatus.Expiry()
		}
	}
	objInfo.Checksum = fi.Checksum
	objInfo.Inlined = fi.InlineData()
	// Success.
	return objInfo
}

// TransitionInfoEquals returns true if transition related information are equal, false otherwise.
func (fi FileInfo) TransitionInfoEquals(ofi FileInfo) bool {

// Stringer provides a canonicalized representation of node.
func (client *peerRESTClient) String() string {
	return client.host.String()
}

// IsOnline returns true if the peer client is online.
func (client *peerRESTClient) IsOnline() bool {
	return client.restClient.IsOnline()
}

// Close - marks the client as closed.
func (client *peerRESTClient) Close() error {
	client.restClient.Close()
	return nil
}

}

func getResourceKey(name MetricName, labels map[string]string) string {
	// labels are used to uniquely identify a metric
	// e.g. reads_per_sec_{drive} inside the map
	sfx := ""
	for _, v := range labels {
		if len(sfx) > 0 {
			sfx += "_"
		}
		sfx += v
	}

	return string(name) + "_" + sfx
}

		removeRoots(fsDirs)
		return nil, nil, err
	}

	// Wait up to 10 seconds for disks to come online.
	pools := obj.(*erasureServerPools)
	t := time.Now()
	for _, pool := range pools.serverPools {
		for _, sets := range pool.erasureDisks {
			for _, s := range sets {
				if !s.IsLocal() {
					for {
						if s.IsOnline() {
							break
						}
						time.Sleep(100 * time.Millisecond)

			if v2.LastOnline.After(v.LastOnline) || v2.LastOnline.IsZero() {
				v2.Endpoint = v.Endpoint
				v2.LastOnline = v.LastOnline
				v2.Latency = v.Latency
				v2.Online = v.Online
				v2.TotalDowntime = v.TotalDowntime
				v2.DeploymentID = v.DeploymentID
			}
			v2.ReplicatedCount += v.ReplicatedCount
			v2.ReplicatedSize += v.ReplicatedSize
			v2.Failed = v2.Failed.Add(v.Failed)

			errs, bucket, object, versionID), err
	}

	cleanFileInfo := func(fi FileInfo) FileInfo {
		// Returns a copy of the 'fi' with erasure index, checksums and inline data niled.
		nfi := fi
		if !nfi.IsRemote() {
			nfi.Data = nil
			nfi.Erasure.Index = 0
			nfi.Erasure.Checksums = nil
		}
		return nfi
	}

	m.Set(driveTotalInodes, float64(drive.UsedInodes+drive.FreeInodes), labels...)

	var healing, online float64
	if drive.Healing {
		healing = 1
	}
	m.Set(driveHealing, healing, labels...)

	if drive.State == "ok" {
		online = 1
	}
	m.Set(driveOnline, online, labels...)
}

func (m *MetricValues) setDriveAPIMetrics(disk madmin.Disk, labels []string) {
	if disk.Metrics == nil {