AvailableSpace uint64
		TotalSpace     uint64
	}, len(z.serverPools))
	for _, disk := range si.Disks {
		// Ignore invalid.
		if disk.PoolIndex < 0 || len(diskStats) <= disk.PoolIndex {
			// https://github.com/minio/minio/issues/16500
			continue
		}
		diskStats[disk.PoolIndex].AvailableSpace += disk.AvailableSpace
		diskStats[disk.PoolIndex].TotalSpace += disk.TotalSpace
	}

	stopTime := meta.StoppedAt

import (
	"github.com/minio/madmin-go/v3"
)

// GetTotalCapacity gets the total capacity in the cluster.
func GetTotalCapacity(diskInfo []madmin.Disk) (capacity uint64) {
	for _, disk := range diskInfo {
		capacity += disk.TotalSpace
	}
	return
}

// GetTotalUsableCapacity gets the total usable capacity in the cluster.
func GetTotalUsableCapacity(diskInfo []madmin.Disk, s StorageInfo) (capacity uint64) {
	for _, disk := range diskInfo {

	disksInfo := getDisksInfo(disks, endpoints, metrics)

	// Sort so that the first element is the smallest.
	sort.Slice(disksInfo, func(i, j int) bool {
		return disksInfo[i].TotalSpace < disksInfo[j].TotalSpace
	})

	storageInfo := StorageInfo{
		Disks: disksInfo,
	}

	storageInfo.Backend.Type = madmin.Erasure
	return storageInfo
}

	diskStats := make([]struct {
		AvailableSpace uint64
		TotalSpace     uint64
	}, len(z.serverPools))
	var totalCap, totalFree uint64
	for _, disk := range si.Disks {
		// Ignore invalid.
		if disk.PoolIndex < 0 || len(diskStats) <= disk.PoolIndex {
			// https://github.com/minio/minio/issues/16500
			continue
		}
		totalCap += disk.TotalSpace
		totalFree += disk.AvailableSpace

	m.Set(driveUsedBytes, float64(drive.UsedSpace), labels...)
	m.Set(driveFreeBytes, float64(drive.AvailableSpace), labels...)
	m.Set(driveTotalBytes, float64(drive.TotalSpace), labels...)
	m.Set(driveUsedInodes, float64(drive.UsedInodes), labels...)
	m.Set(driveFreeInodes, float64(drive.FreeInodes), labels...)
	m.Set(driveTotalInodes, float64(drive.UsedInodes+drive.FreeInodes), labels...)

			prometheus.NewDesc(
				prometheus.BuildFQName(diskNamespace, "storage", "total"),
				"Total space on the drive",
				[]string{"disk"}, nil),
			prometheus.GaugeValue,
			float64(disk.TotalSpace),
			disk.DrivePath,
		)
	}
}

func metricsHandler() http.Handler {
	registry := prometheus.NewRegistry()

	logger.CriticalIf(GlobalContext, registry.Register(minioVersionInfo))

				erasureSet.DeleteMarkersCount = dataUsageInfo.DeleteMarkersTotalCount
				erasureSet.Usage = dataUsageInfo.ObjectsTotalSize
			}
		}
		erasureSet.RawCapacity += d.TotalSpace
		erasureSet.RawUsage += d.UsedSpace
		if d.Healing {
			erasureSet.HealDisks = 1
		}
		poolInfo[d.SetIndex] = erasureSet
		poolsInfo[d.PoolIndex] = poolInfo
	}
	return poolsInfo, nil
}

				VariableLabels: map[string]string{"drive": disk.DrivePath},
			})

			metrics = append(metrics, MetricV2{
				Description:    getNodeDriveTotalBytesMD(),
				Value:          float64(disk.TotalSpace),
				VariableLabels: map[string]string{"drive": disk.DrivePath},
			})

			metrics = append(metrics, MetricV2{
				Description:    getNodeDrivesFreeInodesMD(),
				Value:          float64(disk.FreeInodes),