checksumInfo := meta.Erasure.GetChecksumInfo(meta.Parts[0].Number)
			dataErrs[i] = bitrotVerify(bytes.NewReader(meta.Data),
				int64(len(meta.Data)),
				meta.Erasure.ShardFileSize(meta.Size),
				checksumInfo.Algorithm,
				checksumInfo.Hash, meta.Erasure.ShardSize())
			if dataErrs[i] == nil {
				// All parts verified, mark it as all data available.
				availableDisks[i] = onlineDisk
			} else {