g := errgroup.WithNErrs(len(storageDisks))

	// Write `format.json` to all disks.
	for index := range storageDisks {
		index := index
		g.Go(func() error {
			if formats[index] == nil {
				return errDiskNotFound
			}
			return saveFormatErasure(storageDisks[index], formats[index], "")
		}, index)
	}

	// Wait for the routines to finish.

		return FileInfo{}, errErasureReadQuorum
	}

	// Iterate through all the modTimes and count the FileInfo(s) with latest time.
	for index, t := range modTimes {
		if partsMetadata[index].IsValid() && t.Equal(modTime) {
			latestFileInfo = partsMetadata[index]
			count++
		}
	}

	if !latestFileInfo.IsValid() {
		return FileInfo{}, errErasureReadQuorum
	}

	if count < latestFileInfo.Erasure.DataBlocks {

	// checksum which are different on each disks.
	for index := range partsMetadata {
		if partsMetadata[index].IsValid() {
			partsMetadata[index].Size = fi.Size
			partsMetadata[index].ModTime = fi.ModTime
			partsMetadata[index].Metadata = fi.Metadata
			partsMetadata[index].Parts = fi.Parts
			partsMetadata[index].Checksum = fi.Checksum
			partsMetadata[index].Versioned = opts.Versioned || opts.VersionSuspended
		}
	}

	// Make a volume entry on all underlying storage disks.
	for index := range localDrives {
		index := index
		g.Go(func() (serr error) {
			if localDrives[index] == nil {
				beforeState[index] = madmin.DriveStateOffline
				afterState[index] = madmin.DriveStateOffline
				return errDiskNotFound
			}

			beforeState[index] = madmin.DriveStateOk
			afterState[index] = madmin.DriveStateOk

			if bucket == minioReservedBucket {

	var storageInfo madmin.StorageInfo

	storageInfos := make([]madmin.StorageInfo, len(s.sets))

	g := errgroup.WithNErrs(len(s.sets))
	for index := range s.sets {
		index := index
		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 {

	nSets := make([]int, len(z.serverPools))
	g := errgroup.WithNErrs(len(z.serverPools))
	for index := range z.serverPools {
		index := index
		// Skip suspended pools or pools participating in rebalance for any new
		// I/O.
		if z.IsSuspended(index) || z.IsPoolRebalancing(index) {
			continue
		}
		pool := z.serverPools[index]
		nSets[index] = pool.setCount
		g.Go(func() error {
			// Get the set where it would be placed.

	g := errgroup.WithNErrs(len(storageDisks))
	var mu sync.Mutex
	for index := range storageDisks {
		index := index
		g.Go(func() error {
			if storageDisks[index] == nil {
				// we ignore disk not found errors
				return nil
			}
			volsInfo, err := storageDisks[index].ListVols(ctx)
			if err != nil {
				return err
			}
			for _, volInfo := range volsInfo {

// Code generated by "stringer -type=HandlerID -output=handlers_string.go -trimprefix=Handler msg.go handlers.go"; DO NOT EDIT.

package grid

import "strconv"

func _() {
	// An "invalid array index" compiler error signifies that the constant values have changed.
	// Re-run the stringer command to generate them again.
	var x [1]struct{}
	_ = x[handlerInvalid-0]
	_ = x[HandlerLockLock-1]
	_ = x[HandlerLockRLock-2]
	_ = x[HandlerLockUnlock-3]

		bitrotReaders := make([]io.ReaderAt, len(disks))
		for index, disk := range disks {
			if disk == OfflineDisk {
				continue
			}
			tillOffset := erasure.ShardFileOffset(test.offset, test.length, test.data)

			bitrotReaders[index] = newBitrotReader(disk, nil, "testbucket", "object", tillOffset, writeAlgorithm, bitrotWriterSum(writers[index]), erasure.ShardSize())
		}

		writer := bytes.NewBuffer(nil)

	if ok {
		netLockCtx = context.WithValue(netLockCtx, mcontext.ContextTraceKey, tc)
	}

	for index, c := range restClnts {
		wg.Add(1)
		// broadcast lock request to all nodes
		go func(index int, isReadLock bool, c NetLocker) {
			defer wg.Done()

			g := Granted{index: index}
			if c == nil {
				log("dsync: nil locker\n")
				ch <- g
				return
			}

			var locked bool