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      STACKER NOTE                                         STACKER NOTE
            FILE ALLOCATION TABLES NOT IDENTICAL USING CHECK.EXE
                          (Applies to Stacker 4.0)
      STAC FAX  4404 (09-27-1994)
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      BACKGROUND
      
      You may receive a warning message that your File Allocation
      Tables (FATs) are not identical when you run CHECK. You will be
      asked which copy of the FAT to use to repair the error. This
      document will assist you in making that decision.
      
      SOLUTION
      
         - Review the option message.
         - Select the correct copy of the FAT to repair the error.
           
      Review the Option message.
      
      After you are warned that the two copies of the FAT are not
      identical, CHECK will advise you that it will run its integrity
      checks a second time, using the alternate copy of the FAT. Errors
      may be reported, but usually only on one of the two FATs. After
      that, you will be presented with this option screen:
           WARNING:  The two FATs are not identical.
              Press '1' to exit so you can try using the first copy of
              the FAT.
              Press '2' to exit so you can try using the second copy
              of the FAT.
              Press '3' to copy the first FAT over the second FAT
                        and let CHECK repair any errors
              Selection ('?' for help):
      
                                  IMPORTANT
                 The copy of the FAT that CHECK is currently
                  testing is always the "first copy" of the
                                    FAT.
      
       Select the correct copy of the FAT to repair the error.
      
      Your goal is to make your current (first) copy of the FAT the
      error-free version. Then you can use that copy to repair the
      error. After you receive the warning that the FATs are not
      identical, do the following:
      
       1.  Select option '1'. If you ran CHECK from DOS, you will be
           returned to the DOS prompt. If you started the integrity
           check from the Stacker Toolbox in Windows, you will be
           returned to Windows. If so, exit Windows and go to the DOS
           prompt
       2.  Type CHECK and press <enter>.
       3.  Notice whether most of the errors on the drive are reported
           when CHECK is running the first copy of the FAT or the
           second. If the errors are on the first copy, go to step 4.
           If they are on the second copy, skip to step 5. If the
           errors look the same on both copies of the FAT, go to step
           5.
       4.  Select option '2'. Wait until you are returned to the
           DOS prompt. Type:
           CHECK /F <enter>
           When presented with the options again, select option '3'.
           Let CHECK repair the drive.
       5.  Select option '1'. You will be returned to the DOS prompt.
           At the DOS prompt, type:
           CHECK /F <enter>
           When presented with the options again, select option '3'.
           Let CHECK repair the drive.
      
      
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      Copyright 1994 Stac Electronics
