func reduceCommonDataDir(dataDirs []string, writeQuorum int) (dataDir string) {
	dataDirsCount := make(map[string]int)
	for _, ddir := range dataDirs {
		dataDirsCount[ddir]++
	}

	maxCnt := 0
	for ddir, count := range dataDirsCount {
		if maxCnt < count {
			maxCnt = count
			dataDir = ddir
		}
	}

	if maxCnt >= writeQuorum {
		return dataDir
	}

	return ""
}

					versions = dversions
				}
				break
			}
		}
		dataDir = reduceCommonDataDir(dataDirs, writeQuorum)
	}

	// We can safely allow RenameData errors up to len(er.getDisks()) - writeQuorum
	// otherwise return failure.
	return evalDisks(disks, errs), versions, dataDir, err
}

	notFoundMetaErrs, nonActionableMetaErrs := danglingMetaErrsCount(errs)

	notFoundPartsErrs, nonActionablePartsErrs := 0, 0
	for _, dataErrs := range dataErrsByPart {
		if nf, na := danglingPartErrsCount(dataErrs); nf > notFoundPartsErrs {
			notFoundPartsErrs, nonActionablePartsErrs = nf, na
		}
	}

	for _, m := range metaArr {
		if m.IsValid() {
			validMeta = m

			return nil
		})
		if err != nil {
			return err
		}

		if foundObjects && globalIsErasure {
			// If we found an object in erasure mode, we skip subdirs (only datadirs)...
			break
		}

		// If we have many subfolders, compact ourself.
		shouldCompact := f.newCache.Info.Name != folder.name &&
			len(existingFolders)+len(newFolders) >= dataScannerCompactAtFolders ||

		metaArr          []FileInfo
		errs             []error
		dataErrs         map[int][]int
		expectedMeta     FileInfo
		expectedDangling bool
	}{
		{
			name: "FileInfoExists-case1",
			metaArr: []FileInfo{
				{},
				{},
				fi,
				fi,
			},
			errs: []error{
				errFileNotFound,
				errDiskNotFound,
				nil,
				nil,
			},
			dataErrs:         nil,
			expectedMeta:     fi,

}

// GetDataDir returns an expected dataDir given FileInfo
//   - deleteMarker returns "delete-marker"
//   - returns "legacy" if FileInfo is XLV1 and DataDir is
//     empty, returns DataDir otherwise
//   - returns "dataDir"
func (fi FileInfo) GetDataDir() string {
	if fi.Deleted {
		return "delete-marker"
	}
	if fi.XLV1 && fi.DataDir == "" {
		return "legacy"
	}
	return fi.DataDir
}

	}{
		{ // transitioned object version
			xlmeta: xlMetaV2Object{
				VersionID: vID,
				DataDir:   dataDir,
				MetaSys:   transitioned,
			},
			uses: false,
		},
		{ // to be restored (requires object version to be transitioned)
			xlmeta: xlMetaV2Object{
				VersionID: vID,
				DataDir:   dataDir,
				MetaSys:   transitioned,
				MetaUser:  toBeRestored,
			},
			uses: false,
		},

		if fi.Deleted {
			err = x.addVersion(ventry)
		}
		if x.SharedDataDirCount(ver.ObjectV2.VersionID, ver.ObjectV2.DataDir) > 0 {
			// Found that another version references the same dataDir
			// we shouldn't remove it, and only remove the version instead
			return "", nil
		}
		return uuid.UUID(ver.ObjectV2.DataDir).String(), err
	}

	if fi.Deleted {
		err = x.addVersion(ventry)
		return "", err
	}

		case "VersionID":
			z.VersionID, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "VersionID")
				return
			}
		case "DataDir":
			z.DataDir, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "DataDir")
				return
			}
		default:
			err = dc.Skip()
			if err != nil {
				err = msgp.WrapError(err)
				return
			}
		}
	}

	// Captures all the individual object `xl.meta`.
	Parts []ObjectPartInfo `json:"parts,omitempty"`

	// Dummy values used for legacy use cases.
	VersionID string `json:"versionId,omitempty"`
	DataDir   string `json:"dataDir,omitempty"` // always points to "legacy"
}

// StatInfo - carries stat information of the object.
type StatInfo struct {
	Size    int64     `json:"size"`    // Size of the object `xl.meta`.