g.Go(func() error {
			storageInfos[index] = s.sets[index].StorageInfo(ctx)
			return nil
		}, index)
	}

	// Wait for the go routines.
	g.Wait()

	for _, lstorageInfo := range storageInfos {
		storageInfo.Disks = append(storageInfo.Disks, lstorageInfo.Disks...)
	}

	return storageInfo
}

// StorageInfo - combines output of StorageInfo across all erasure coded object sets.

	// Wait for the go routines.
	g.Wait()

	storageInfo.Backend = z.BackendInfo()
	for _, lstorageInfo := range storageInfos {
		storageInfo.Disks = append(storageInfo.Disks, lstorageInfo.Disks...)
	}

	return storageInfo
}

func (z *erasureServerPools) StorageInfo(ctx context.Context, metrics bool) StorageInfo {
	return globalNotificationSys.StorageInfo(ctx, z, metrics)
}

		objLayer := newObjectLayerFn()
		if objLayer == nil {
			return storageMetrics{}, nil
		}
		storageInfo := objLayer.StorageInfo(GlobalContext, true)
		onlineDrives, offlineDrives := getOnlineOfflineDisksStats(storageInfo.Disks)
		totalDrives := onlineDrives.Merge(offlineDrives)
		v = storageMetrics{
			storageInfo:   storageInfo,
			onlineDrives:  onlineDrives.Sum(),
			offlineDrives: offlineDrives.Sum(),

func getStorageInfo(disks []StorageAPI, endpoints []Endpoint, metrics bool) StorageInfo {
	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
}

) error {
	clusterDriveMetrics, _ := c.clusterDriveMetrics.Get()

	storageInfo := clusterDriveMetrics.storageInfo

	m.Set(healthCapacityRawTotalBytes, float64(GetTotalCapacity(storageInfo.Disks)))
	m.Set(healthCapacityRawFreeBytes, float64(GetTotalCapacityFree(storageInfo.Disks)))
	m.Set(healthCapacityUsableTotalBytes, float64(GetTotalUsableCapacity(storageInfo.Disks, storageInfo)))

	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 {
		// Ignore invalid.
		if disk.PoolIndex < 0 || len(s.Backend.StandardSCData) <= disk.PoolIndex {
			// https://github.com/minio/minio/issues/16500
			continue
		}

	clusterDriveMetrics, err := c.clusterDriveMetrics.Get()
	if err != nil {
		metricsLogIf(ctx, err)
	} else {
		m.Set(configStandardParity, float64(clusterDriveMetrics.storageInfo.Backend.StandardSCParity))
		m.Set(configRRSParity, float64(clusterDriveMetrics.storageInfo.Backend.RRSCParity))
	}

	return nil

	})
}

func validateObjPerfOptions(ctx context.Context, storageInfo madmin.StorageInfo, concurrent int, size int, autotune bool) (bool, bool, string) {
	capacityNeeded := uint64(concurrent * size)
	capacity := GetTotalUsableCapacityFree(storageInfo.Disks, storageInfo)

	if capacity < capacityNeeded {

	objLayer := newObjectLayerFn()
	if objLayer == nil {
		return nil
	}

	metrics := make(map[string]madmin.DiskMetric)
	storageInfo := objLayer.LocalStorageInfo(GlobalContext, true)
	for _, d := range storageInfo.Disks {
		if len(disks) != 0 {
			_, ok := disks[d.Endpoint]
			if !ok {
				continue
			}
		}

			continue
		}
		props.MinioEnvVars[key] = value
	}

	objLayer := newObjectLayerFn()
	if objLayer != nil {
		storageInfo := objLayer.LocalStorageInfo(GlobalContext, metrics)
		props.State = string(madmin.ItemOnline)
		props.Disks = storageInfo.Disks
	} else {
		props.State = string(madmin.ItemInitializing)
		props.Disks = getOfflineDisks("", globalEndpoints)
	}

	return props