dataUsageInfo, err := scanDataFolder(ctx, disks, s, cache, func(item scannerItem) (sizeSummary, error) {
		// Look for `xl.meta/xl.json' at the leaf.
		if !strings.HasSuffix(item.Path, SlashSeparator+xlStorageFormatFile) &&
			!strings.HasSuffix(item.Path, SlashSeparator+xlStorageFormatFileV1) {
			// if no xl.meta/xl.json found, skip the file.
			return sizeSummary{}, errSkipFile
		}

	// Shortcut for APN/1.0 Veeam/1.0 Backup/10.0
	// It requests unique blocks with a specific prefix.
	// We skip scanning the parent directory for
	// more objects matching the prefix.
	if isVeeamClient(ctx) && strings.HasSuffix(prefix, ".blk") {
		opts.BaseDir = prefix
		opts.Transient = true
	}

	// set bucket metadata in opts
	opts.setBucketMeta(ctx)

	merged, err := z.listPath(ctx, &opts)

			continue
		}
		if strings.HasPrefix(result.Item.Name, batchJobReportsPrefix+slashSeparator) {
			continue
		}
		// ignore batch-replicate.bin and batch-rotate.bin entries
		if strings.HasSuffix(result.Item.Name, slashSeparator) {
			continue
		}
		req := &BatchJobRequest{}
		if err := req.load(ctx, j.objLayer, result.Item.Name); err != nil {
			batchLogIf(ctx, err)
			continue
		}

	if err != nil {
		t.Fatalf("%s : %s", instanceType, err.Error())
	}

	var dataDir string
	for _, folder := range dataDirs {
		if strings.HasSuffix(folder, SlashSeparator) {
			dataDir = folder
			break
		}
	}

	toDel := (len(erasureDisks) / 2) + 1
	for _, disk := range erasureDisks[:toDel] {

			if len(bmbuf) < n {
				bmbuf = make([]byte, n)
			}
			b.SetBytes(int64(n))
			f(b, n)
		})
	}
}

var indexSizes = []int{10, 32, 4 << 10, 4 << 20, 64 << 20}

var isRaceBuilder = strings.HasSuffix(testenv.Builder(), "-race")

func BenchmarkIndexByte(b *testing.B) {
	benchBytes(b, indexSizes, bmIndexByte(IndexByte))
}

// indexBytePortable use as the baseline for performance comparisons.