func initTestServerWithBackend(ctx context.Context, t TestErrHandler, testServer TestServer, objLayer ObjectLayer, disks []string) TestServer {
	// Test Server needs to start before formatting of disks.
	// Get credential.
	credentials := globalActiveCred
	if !globalReplicationPool.IsSet() {
		globalReplicationPool.Set(nil)
	}
	testServer.Obj = objLayer
	testServer.rawDiskPaths = disks

}

// currentPathUpdater provides a lightweight update function for keeping track of
// current objects for each disk.
// Returns a function that can be used to update the current object
// and a function to call to when processing finished.
func (p *scannerMetrics) currentPathUpdater(disk, initial string) (update func(path string), done func()) {
	initialPtr := unsafe.Pointer(&initial)
	tracker := &currentPathTracker{

	// i.e if we do no return here in such a case, reduceWriteQuorumErrs() would
	// return a quorum error to HealFile().
	nilCount := countErrs(p.errs, nil)
	if nilCount >= p.writeQuorum {
		return nil
	}

	writeErr := reduceWriteQuorumErrs(ctx, p.errs, objectOpIgnoredErrs, p.writeQuorum)

	// Maximum size of default bucket encryption configuration allowed
	maxBucketSSEConfigSize = 1 * humanize.MiByte

	// diskFillFraction is the fraction of a disk we allow to be filled.
	diskFillFraction = 0.99

	// diskReserveFraction is the fraction of a disk where we will fill other server pools first.
	// If all pools reach this, we will use all pools with regular placement.
	diskReserveFraction = 0.15

}

// LocalDisksPaths returns the disk paths of the local disks
func (l EndpointServerPools) LocalDisksPaths() []string {
	var disks []string
	for _, ep := range l {
		for _, endpoint := range ep.Endpoints {
			if endpoint.IsLocal {
				disks = append(disks, endpoint.Path)
			}
		}
	}
	return disks
}

// NLocalDisksPathsPerPool returns the disk paths of the local disks per pool

	missingPartsHeal := int32(0) // Atomic bool flag.
	readerIndex := 0
	var wg sync.WaitGroup
	// if readTrigger is true, it implies next disk.ReadAt() should be tried
	// if readTrigger is false, it implies previous disk.ReadAt() was successful and there is no need
	// to try reading the next disk.
	for readTrigger := range readTriggerCh {
		newBufLK.RLock()
		canDecode := p.canDecode(newBuf)
		newBufLK.RUnlock()
		if canDecode {

func healDiskFormat(ctx context.Context, objAPI ObjectLayer, opts madmin.HealOpts) (madmin.HealResultItem, error) {
	res, err := objAPI.HealFormat(ctx, opts.DryRun)

	// return any error, ignore error returned when disks have
	// already healed.
	if err != nil && err != errNoHealRequired {
		return madmin.HealResultItem{}, err
	}

	return res, nil

		VersionID:   m.VersionID,
		DataDir:     m.DataDir,
		XLV1:        true,
		NumVersions: 1,
	}

	return fi, nil
}

// Signature will return a signature that is expected to be the same across all disks.
func (m *xlMetaV1Object) Signature() [4]byte {
	// Shallow copy
	c := *m
	// Zero unimportant fields
	c.Erasure.Index = 0
	c.Minio.Release = ""
	crc := hashDeterministicString(c.Meta)
	c.Meta = nil

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

		for _, disk := range storageInfo.Disks {
			metrics = append(metrics, MetricV2{
				Description:    getNodeDriveUsedBytesMD(),
				Value:          float64(disk.UsedSpace),
				VariableLabels: map[string]string{"drive": disk.DrivePath},
			})

			metrics = append(metrics, MetricV2{

		healObjectSelect:      0,
		scanMode:              scanMode,
		weSleep:               weSleep,
		updates:               cache.Info.updates,
		updateCurrentPath:     updatePath,
		disks:                 disks,
		disksQuorum:           len(disks) / 2,
	}

	var skipHeal atomic.Bool
	if !globalIsErasure || cache.Info.SkipHealing {
		skipHeal.Store(true)
	}

	// Check if we should do healing at all.