| VMS Help ANALYZE, /DISK_STRUCTURE, /READ_CHECK *Conan The Librarian | 
    Determines whether the Analyze/Disk_Structure utility performs
    a read check of all allocated blocks on the specified disk.
    When the Analyze/Disk_Structure utility performs a read check,
    it reads the disk twice; this ensures that it reads the disk
    correctly. The default is /NOREAD_CHECK.
    Format
      /READ_CHECK
      /NOREAD_CHECK
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