WARNING: FATAL DIR ERROR ON VOL VOLUMENAME DIR SECTOR sss.

Occurs on:  68, 86, and 286.

Meaning:  This error is displayed if a disk read error occurs while
          reading the directory of a volume in the file server.  "sss"
          is the directory sector number in which the error occurred.
          Two copies of all directories are kept on each system volume.
          If a read failure occurs on one copy, the server will
          automatically retry the read using the secondary (mirrored)
          directory.  This error message will display only if a
          directory sector read failed on both directory copies.  This
          error will not halt the file server.

Cause:  This message might occur if the server was halted suddenly by a
        hardware or power failure or by bringing down the network
        without the DOWN command.

Solution:  The file server will continue to operate as if the directory
           sector had contained no active file entries.  This is not a
           fatal error, but it does signal significant problems in the
           directory area, and will probably be accompanied with many
           other error messages.  The system manager should run VREPAIR
           on the volume to repair the bad sectors before allowing the
           file server to be accessed.