TotalErrorsAvailability uint64             `json:"totalErrsAvailability"`
	TotalErrorsTimeout      uint64             `json:"totalErrsTimeout"`
	TotalWrites             uint64             `json:"totalWrites"`
	TotalDeletes            uint64             `json:"totalDeletes"`
}

// VolsInfo is a collection of volume(bucket) information
type VolsInfo []VolInfo

			z.TotalErrorsTimeout, err = dc.ReadUint64()
			if err != nil {
				err = msgp.WrapError(err, "TotalErrorsTimeout")
				return
			}
		case "TotalWrites":
			z.TotalWrites, err = dc.ReadUint64()
			if err != nil {
				err = msgp.WrapError(err, "TotalWrites")
				return
			}
		case "TotalDeletes":
			z.TotalDeletes, err = dc.ReadUint64()
			if err != nil {
				err = msgp.WrapError(err, "TotalDeletes")

	deletes := make([]uint64, len(infos))
	writes := make([]uint64, len(infos))
	for index, di := range infos {
		deletes[index] = di.Metrics.TotalDeletes
		writes[index] = di.Metrics.TotalWrites
	}

	filter := func(list []uint64) (commonCount uint64) {
		maxCnt := 0
		signatureMap := map[uint64]int{}
		for _, v := range list {
			signatureMap[v]++
		}

		onlineDrives, offlineDrives := getOnlineOfflineDisksStats(storageInfo.Disks)
		totalDrives := onlineDrives.Merge(offlineDrives)

		v = storageMetrics{
			storageInfo:   storageInfo,
			onlineDrives:  onlineDrives.Sum(),
			offlineDrives: offlineDrives.Sum(),
			totalDrives:   totalDrives.Sum(),
			ioStats:       map[string]driveIOStatMetrics{},
		}

		currentStats := getCurrentDriveIOStats()

		objLayer := newObjectLayerFn()

		metrics = make([]MetricV2, 0, 50)
		storageInfo := objLayer.LocalStorageInfo(ctx, true)
		onlineDrives, offlineDrives := getOnlineOfflineDisksStats(storageInfo.Disks)
		totalDrives := onlineDrives.Merge(offlineDrives)

		for _, disk := range storageInfo.Disks {
			metrics = append(metrics, MetricV2{
				Description:    getNodeDriveUsedBytesMD(),
				Value:          float64(disk.UsedSpace),

	if err != nil {
		// We start off with '0' if we can read the attributes
		return 0
	}
	return binary.LittleEndian.Uint64(buf[:8])
}

func (s *xlStorage) getWriteAttribute() uint64 {
	attr := "user.total_writes"
	buf, err := xattr.LGet(s.formatFile, attr)
	if err != nil {
		// We start off with '0' if we can read the attributes
		return 0
	}

	return binary.LittleEndian.Uint64(buf[:8])
}