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

	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))

				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),