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This completes the first editing pass of the man pages. Very little content editing has been done, but the server and client versions of various man pages have been combined into a single man page for the file (affects CellServDB, ThisCell, NetInfo, and NetRestrict), the descriptions of the various AFS cache files have been combined into one afs_cache man page, and the descriptions of the two butc log files have been combined into one butc_logs man page. For man pages for databases with two files, symlinks are now created on installation for the secondary file name. All of the man pages should now be ready for public review, additional editing and cleanup, and content editing.
44 lines
1.6 KiB
Plaintext
44 lines
1.6 KiB
Plaintext
=head1 NAME
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bdb.DB0, bdb.DBSYS1 - Contain the Backup Database and associated log
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=head1 DESCRIPTION
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The F<bdb.DB0> file contains the Backup Database, which records
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configuration information used by the AFS Backup System along with
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cross-indexed records of the tapes created and volumes dumped using the
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Backup System commands.
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The F<bdb.DBSYS1> file is a log file in which the Backup Server
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(B<buserver> process) logs each database operation before performing
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it. When an operation is interrupted, the Backup Server replays the log to
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complete the operation.
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Both files are in binary format and reside in the F</usr/afs/db> directory
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on each database server machine that runs the Backup Server. When the
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Backup Server starts or restarts on a given machine, it establishes a
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connection with its peers and verifies that its copy of the F<bdb.DB0>
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file matches the copy on the other database server machines. If not, the
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Backup Servers use AFS's distributed database technology, Ubik, to
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distribute to all of the machines the copy of the database with the
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highest version number.
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Use the commands in the backup suite to administer the Backup Database. It
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is advisable to create a backup copy of the F<bdb.DB0> file on tape on a
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regular basis, using the UNIX B<tar> command or another local disk backup
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utility.
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=head1 SEE ALSO
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L<backup(8)>,
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L<backup_savedb(8)>,
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L<buserver(8)>
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=head1 COPYRIGHT
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IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved.
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This documentation is covered by the IBM Public License Version 1.0. It was
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converted from HTML to POD by software written by Chas Williams and Russ
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Allbery, based on work by Alf Wachsmann and Elizabeth Cassell.
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