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       backup_dbverify - Checks the integrity of the Backup Database


       backup dbverify [-detail] [-localauth] [-cell <cell name>]

       backup db [-d] [-l] [-c <cell name>] [-h]


       The backup dbverify command checks the integrity of the Backup
       Database. The command’s output indicates whether the Backup Database is
       damaged (data is corrupted) or not. If the Backup Database is
       undamaged, it is safe to continue using it. If it is corrupted,
       discontinue any backup operations until it is repaired.


       While this command runs, no other backup operation can access the
       Backup Database; the other commands do not run until this command
       completes. Avoid issuing this command when other backup operations are
       likely to run. The backup savedb command repairs some types of


           Reports the number of orphaned blocks found, any inconsistencies,
           and the name of the server machine running the Backup Server that
           is checking its copy of the database.

           Constructs a server ticket using a key from the local
           /etc/openafs/server/KeyFile file. The backup command interpreter
           presents it to the Backup Server, Volume Server and VL Server
           during mutual authentication. Do not combine this flag with the
           -cell argument. For more details, see backup(8).

       -cell <cell name>
           Names the cell in which to run the command. Do not combine this
           argument with the -localauth flag. For more details, see backup(8).

           Prints the online help for this command. All other valid options
           are ignored.


       The command displays one of the following two messages:

       Database OK
           The database is undamaged and can be used.

       Database not OK
           The database is damaged. You can use the backup savedb command to
           repair many kinds of corruption as it creates a backup copy.  For
           more detailed instructions, see the IBM AFS Administration Guide
           chapter about performing backup operations.

       The -detail flag provides additional information:

       ·   The number of orphan blocks found. These are ranges of memory that
           the Backup Server preallocated in the database but cannot use.
           Orphan blocks do not interfere with database access, but do waste
           disk space. To free the unusable space, dump the database to tape
           by using the backup savedb command, and then restore it by using
           the backup restoredb command.

       ·   Any inconsistencies in the database, such as invalid hostnames for
           Tape Coordinator machines.

       ·   The name of the database server machine on which the Backup
           Database was checked, designated as the "Database checker". For a
           detailed trace of the verification operation, see the
           /var/log/openafs/BackupLog file on the indicated machine. You can
           use the bos getlog command to display it.


       The following command confirms that the Backup Database is undamaged:

          % backup dbverify
          Database OK

       The following command confirms that the Backup Database is undamaged
       and that it has no orphan blocks or invalid Tape Coordinator entries.
       The Backup Server running on the machine "" checked its copy
       of the Database.

          % backup dbverify -detail
          Database OK
          Orphan blocks 0
          Database checker was


       The issuer must be listed in the /etc/openafs/server/UserList file on
       every machine where the Backup Server is running, or must be logged
       onto a server machine as the local superuser "root" if the -localauth
       flag is included.


       BackupLog(5), backup(8), backup_restoredb(8), backup_savedb(8),


       IBM Corporation 2000. <> All Rights Reserved.

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