public static void showDiskStoreMetadata(ArrayList<String> args) {
    String dsName = args.get(0);
    File[] dirs = argsToFile(args.subList(1, args.size()));

    try {
      DiskStoreImpl.dumpMetadata(dsName, dirs, showBuckets);
    } catch (Exception ex) {
      throw new GemFireIOException(" disk-store=" + dsName + ": " + ex, ex);
    }
  }
this is a test hook to allow us to drive SystemAdmin functions without invoking main(), which
can call System.exit().
geode-core/src/main/java/org/apache/geode/internal/SystemAdmin.java