// WalkDir will walk a directory on disk and return a metacache stream on wr.
	WalkDir(ctx context.Context, opts WalkDirOptions, wr io.Writer) error

	// Metadata operations
	DeleteVersion(ctx context.Context, volume, path string, fi FileInfo, forceDelMarker bool, opts DeleteOptions) error
	DeleteVersions(ctx context.Context, volume string, versions []FileInfoVersions, opts DeleteOptions) []error

		return err
	}
	return d.disk.UpdateMetadata(ctx, volume, path, fi, opts)
}

func (d *naughtyDisk) DeleteVersion(ctx context.Context, volume, path string, fi FileInfo, forceDelMarker bool, opts DeleteOptions) (err error) {
	if err := d.calcError(); err != nil {
		return err
	}
	return d.disk.DeleteVersion(ctx, volume, path, fi, forceDelMarker, opts)
}

		DiskID:     *client.diskID.Load(),
		Volume:     volume,
		FilePath:   path,
		UpdateOpts: opts,
		FI:         fi,
	})
	return toStorageErr(err)
}

func (client *storageRESTClient) DeleteVersion(ctx context.Context, volume, path string, fi FileInfo, forceDelMarker bool, opts DeleteOptions) (err error) {
	ctx, cancel := context.WithTimeout(ctx, globalDriveConfig.GetMaxTimeout())
	defer cancel()

	w := xioutil.NewDeadlineWorker(globalDriveConfig.GetMaxTimeout())
	return w.Run(func() error { return p.storage.WriteAll(ctx, volume, path, b) })
}

func (p *xlStorageDiskIDCheck) DeleteVersion(ctx context.Context, volume, path string, fi FileInfo, forceDelMarker bool, opts DeleteOptions) (err error) {
	ctx, done, err := p.TrackDiskHealth(ctx, storageMetricDeleteVersion, volume, path)
	if err != nil {
		return err

		return x.versions[i].header.sortsBefore(x.versions[j].header)
	})
}

// DeleteVersion deletes the version specified by version id.
// returns to the caller which dataDir to delete, also
// indicates if this is the last version.
func (x *xlMetaV2) DeleteVersion(fi FileInfo) (string, error) {
	// This is a situation where versionId is explicitly

			transfi.TransitionStatus = lifecycle.TransitionComplete
			transfi.TransitionTier = "MINIO-TIER"
			transfi.TransitionedObjName = mustGetUUID()
			xl.DeleteVersion(transfi)

			fi.SetTierFreeVersionID(mustGetUUID())
			// delete this version leading to a free version
			xl.DeleteVersion(fi)
			freeVersionIDs = append(freeVersionIDs, fi.TierFreeVersionID())
			allVersionIDs = append(allVersionIDs, fi.TierFreeVersionID())
		} else {

		return np, grid.NewRemoteErr(errDiskNotFound)
	}
	volume := p.Volume
	filePath := p.FilePath
	forceDelMarker := p.ForceDelMarker

	opts := DeleteOptions{}
	err := s.getStorage().DeleteVersion(context.Background(), volume, filePath, p.FI, forceDelMarker, opts)
	return np, grid.NewRemoteErr(err)
}

// ReadVersionHandlerWS read metadata of versionID

	count := len(testCases)
	for i := 4; i < len(testCases); i++ {
		tc := testCases[i]
		dataDir, err := xl.DeleteVersion(fileInfos[i])
		failOnErr(count+1, err)
		if dataDir != tc.expectedDataDir {
			t.Fatalf("Expected %s but got %s", tc.expectedDataDir, dataDir)
		}
		count++
	}
}