checksumInfo := meta.Erasure.GetChecksumInfo(meta.Parts[0].Number)
			verifyErr := bitrotVerify(bytes.NewReader(meta.Data),
				int64(len(meta.Data)),
				meta.Erasure.ShardFileSize(meta.Size),
				checksumInfo.Algorithm,
				checksumInfo.Hash, meta.Erasure.ShardSize())
			dataErrsByPart[0][i] = convPartErrToInt(verifyErr)
			continue
		}

		var (
			verifyErr  error

		if sum.PartNumber == partNumber {
			// Return the checksum
			return sum
		}
	}
	return ChecksumInfo{Algorithm: DefaultBitrotAlgorithm}
}

// ShardFileSize - returns final erasure size from original size.
func (e ErasureInfo) ShardFileSize(totalLength int64) int64 {
	if totalLength == 0 {
		return 0
	}
	if totalLength == -1 {
		return -1
	}
	numShards := totalLength / e.BlockSize

	var inlineBuffers []*bytes.Buffer
	if globalStorageClass.ShouldInline(erasure.ShardFileSize(data.ActualSize()), opts.Versioned) {
		inlineBuffers = make([]*bytes.Buffer, len(onlineDisks))
	}

	shardFileSize := erasure.ShardFileSize(data.Size())
	writers := make([]io.Writer, len(onlineDisks))
	for i, disk := range onlineDisks {
		if disk == nil {
			continue

		// - object has maximum of 1 parts
		if attemptInline {
			inlineBlock := globalStorageClass.InlineBlock()
			if inlineBlock <= 0 {
				inlineBlock = 128 * humanize.KiByte
			}

			canInline := fi.ShardFileSize(fi.Parts[0].ActualSize) <= inlineBlock
			if canInline {
				dataPath := pathJoin(volumeDir, path, fi.DataDir, fmt.Sprintf("part.%d", fi.Parts[0].Number))
				fi.Data, err = s.readAllData(ctx, volume, volumeDir, dataPath)