dstFilePath := pathutil.Join(dstVolumeDir, pathJoin(dstPath, xlStorageFormatFile))

	var srcDataPath string
	var dstDataPath string
	var dataDir string
	if !fi.IsRemote() {
		dataDir = retainSlash(fi.DataDir)
	}
	if dataDir != "" {
		srcDataPath = retainSlash(pathJoin(srcVolumeDir, srcPath, dataDir))
		// make sure to always use path.Join here, do not use pathJoin as