The RMU Dump Backup_File command reads an .rbf file and displays
    the contents. It uses an .rbf file, not a database file, as its
    parameter, and is a separate command from the RMU Dump command.
    The output captures unrecoverable media errors and indicates if
    there are unknown backup blocks on tape. This command can can
    be used to confirm that a backup file is formatted correctly and
    that the media is readable for the RMU Restore command.

                                   NOTE

       Successful completion of this command does not guarantee
       that data in a backup file is uncorrupt, nor that the backup
       file is complete, nor that a restore operation will succeed.

    Use the Root, Full, or Debug option to the Option qualifier to
    dump the database backup header information. The database backup
    header information includes the name of the backup file and
    the "Backup file database version". The "Backup file database
    version" is the version of Oracle Rdb that was executing at
    the time the backup file was created. The "Oracle Rdb structure
    level" listed in the section entitled "Database Parameters" is
    the currently executing version of Oracle Rdb.

    The backup header information is contained on the first volume of
    a database backup file on tape.