return nil
}

const (
	healthCapacityRawTotalBytes    = "capacity_raw_total_bytes"
	healthCapacityRawFreeBytes     = "capacity_raw_free_bytes"
	healthCapacityUsableTotalBytes = "capacity_usable_total_bytes"
	healthCapacityUsableFreeBytes  = "capacity_usable_free_bytes"
)

var (
	healthCapacityRawTotalBytesMD = NewGaugeMD(healthCapacityRawTotalBytes,
		"Total cluster raw storage capacity in bytes")

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 {
		// Ignore invalid.

	// Report total usable capacity
	ch <- prometheus.MustNewConstMetric(
		prometheus.NewDesc(
			prometheus.BuildFQName(minioNamespace, "capacity_usable", "total"),
			"Total usable capacity online in the cluster",
			nil, nil),
		prometheus.GaugeValue,
		float64(GetTotalUsableCapacity(server.Disks, sinfo)),
	)

	// Report total usable capacity free
	ch <- prometheus.MustNewConstMetric(

			deleteMarkers = madmin.DeleteMarkers{Count: dataUsageInfo.DeleteMarkersTotalCount}
			usage = madmin.Usage{Size: dataUsageInfo.ObjectsTotalSize}
		} else {
			buckets = madmin.Buckets{Error: err.Error()}
			objects = madmin.Objects{Error: err.Error()}
			deleteMarkers = madmin.DeleteMarkers{Error: err.Error()}
			usage = madmin.Usage{Error: err.Error()}
		}

		// Fetching the backend information

		clusterVersionsHistogram := map[string]uint64{}
		for _, usage := range dataUsageInfo.BucketsUsage {
			clusterBuckets++
			clusterSize += usage.Size
			clusterObjectsCount += usage.ObjectsCount
			clusterVersionsCount += usage.VersionsCount
			clusterDeleteMarkersCount += usage.DeleteMarkersCount
			for k, v := range usage.ObjectSizesHistogram {
				v1, ok := clusterObjectSizesHistogram[k]
				if !ok {

   $ minio server /data-{1...4}/minio # Single Node Multi Drive`,
	)

	ErrUnsupportedBackend = newErrFn(
		"Unable to write to the backend",
		"Please ensure your drive supports O_DIRECT",
		"",
	)

	ErrUnableToWriteInBackend = newErrFn(
		"Unable to write to the backend",
		"Please ensure MinIO binary has write permissions for the backend",

		callhomeCfg, err := callhome.LookupConfig(s[config.CallhomeSubSys][config.Default])
		if err != nil {
			configLogIf(ctx, fmt.Errorf("Unable to load callhome config: %w", err))
		} else {
			enable := callhomeCfg.Enable && !globalCallhomeConfig.Enabled()
			globalCallhomeConfig.Update(callhomeCfg)
			if enable {
				initCallhome(ctx, objAPI)
			}
		}
	case config.DriveSubSys:

	"github.com/minio/minio/internal/store"
	xnet "github.com/minio/pkg/v2/net"
	"github.com/rabbitmq/amqp091-go"
)

// AMQPArgs - AMQP target arguments.
type AMQPArgs struct {
	Enable            bool     `json:"enable"`
	URL               xnet.URL `json:"url"`
	Exchange          string   `json:"exchange"`
	RoutingKey        string   `json:"routingKey"`
	ExchangeType      string   `json:"exchangeType"`

	if err != nil {
		c.Fatalf("Unable to set user: %v", err)
	}
	// 3.1 check that user does not have any access to the bucket
	uClient := s.getUserClient(c, accessKey, secretKey, "")
	c.mustNotListObjects(ctx, uClient, "testbucket")

	// 3.2 associate policy to user
	err = s.adm.SetPolicy(ctx, policy1, accessKey, false)
	if err != nil {
		c.Fatalf("Unable to set policy: %v", err)
	}

			logger.Fatal(config.ErrMissingEnvCredentialAccessKey(nil), "Unable to start MinIO")
		} else if env.IsSet(config.EnvAccessKey) && !env.IsSet(config.EnvSecretKey) {
			logger.Fatal(config.ErrMissingEnvCredentialSecretKey(nil), "Unable to start MinIO")
		}
	}

	globalDisableFreezeOnBoot = env.Get("_MINIO_DISABLE_API_FREEZE_ON_BOOT", "") == "true" || serverDebugLog
}

func loadRootCredentials() {