 /**
   * Load one storage directory. Recover from previous transitions if required.
   *
   * @param nsInfo namespace information
   * @param dataDir the root path of the storage directory
   * @param startOpt startup option
   * @return the StorageDirectory successfully loaded.
   * @throws IOException
   */
 /**
   * Load one storage directory. Recover from previous transitions if required.
   *
   * @param nsInfo namespace information
   * @param dataDir the root path of the storage directory
   * @param startOpt startup option
   * @return the StorageDirectory successfully loaded.
   * @throws IOException
   */ | BlockPoolSliceStorage.java