 /**
   * Hardlink all finalized and RBW blocks in fromDir to toDir
   * 
   * @param fromDir directory where the snapshot is stored
   * @param toDir the current data directory
   * @throws IOException if error occurs during hardlink
   */
 /**
   * Hardlink all finalized and RBW blocks in fromDir to toDir
   * 
   * @param fromDir directory where the snapshot is stored
   * @param toDir the current data directory
   * @throws IOException if error occurs during hardlink
   */ | BlockPoolSliceStorage.java