if !s.checkID(p.DiskID) {
		return grid.NewNPErr(errDiskNotFound)
	}

	volume := p.Volume
	filePath := p.FilePath
	origvolume := p.OrigVolume

	err := s.getStorage().WriteMetadata(context.Background(), origvolume, volume, filePath, p.FI)
	return np, grid.NewRemoteErr(err)
}

// UpdateMetadataHandler update new updated metadata.

func (s *xlStorage) ListDir(ctx context.Context, origvolume, volume, dirPath string, count int) (entries []string, err error) {
	if contextCanceled(ctx) {
		return nil, ctx.Err()
	}

	if origvolume != "" {
		if !skipAccessChecks(origvolume) {
			origvolumeDir, err := s.getVolDir(origvolume)
			if err != nil {
				return nil, err
			}

}

func (a badDisk) ReadFileStream(ctx context.Context, volume, path string, offset, length int64) (io.ReadCloser, error) {
	return nil, errFaultyDisk
}

func (a badDisk) CreateFile(ctx context.Context, origvolume, volume, path string, size int64, reader io.Reader) error {
	return errFaultyDisk
}

func (badDisk) Hostname() string {
	return ""
}

const oneMiByte = 1 * humanize.MiByte

}

// MetadataHandlerParams is request info for UpdateMetadataHandle and WriteMetadataHandler.
type MetadataHandlerParams struct {
	DiskID     string             `msg:"id"`
	Volume     string             `msg:"v"`
	OrigVolume string             `msg:"ov"`
	FilePath   string             `msg:"fp"`
	UpdateOpts UpdateMetadataOpts `msg:"uo"`
	FI         FileInfo           `msg:"fi"`
}

			}
		case "v":
			z.Volume, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "Volume")
				return
			}
		case "ov":
			z.OrigVolume, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "OrigVolume")
				return
			}
		case "fp":
			z.FilePath, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "FilePath")
				return
			}