ddir, err = uuid.Parse(dataDir)
	if err != nil {
		return 0
	}
	return x.SharedDataDirCount(uv, ddir)
}

// AddLegacy adds a legacy version, is only called when no prior
// versions exist, safe to use it by only one function in xl-storage(RenameData)
func (x *xlMetaV2) AddLegacy(m *xlMetaV1Object) error {
	if !m.valid() {
		return errFileCorrupt
	}
	m.VersionID = nullVersionID

				storageLogOnceIf(ctx, err, "read-data-unmarshal-"+dstFilePath)
				// Data appears corrupt. Drop data.
			} else {
				xlMetaLegacy.DataDir = legacyDataDir
				if err = xlMeta.AddLegacy(xlMetaLegacy); err != nil {
					storageLogOnceIf(ctx, err, "read-data-add-legacy-"+dstFilePath)
				}
				legacyPreserved = true
			}
		}
	} else {