public FileSystemDTO updateFileSystemStatus(String dirPath, String status) throws Exception {
   FileSystemDTO fsDTO =
       fileSystemMgt()
           .updateFileSystemStatus(
               getFileSystemGroupID(), dirPath, FileSystemStatus.toInt(status));
   selectStorageFileSystem();
   return fsDTO;
 }
 public StringBuffer toString(StringBuffer sb) {
   sb.append("FileSystem[pk=").append(pk);
   sb.append(", ").append(directoryPath);
   sb.append(", groupID=").append(groupID);
   sb.append(", aet=").append(retrieveAET);
   sb.append(", ").append(Availability.toString(availability));
   sb.append(", ").append(FileSystemStatus.toString(status));
   sb.append(", userinfo=").append(userInfo);
   if (next != null) sb.append(", next=").append(next);
   sb.append("]");
   return sb;
 }