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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.
43 lines
1.7 KiB
Plaintext
43 lines
1.7 KiB
Plaintext
=head1 NAME
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prdb.DB0, prdb.DBSYS1 - Contain the Protection Database and associated log
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=head1 DESCRIPTION
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The F<prdb.DB0> file contains the Protection Database, which maps AFS
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user, machine, and group names to their respective IDs (AFS UIDs and GIDs)
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and tracks group memberships. The Protection Server (B<ptserver> process)
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uses the information in the database to help the File Server grant data
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access to authorized users.
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The F<prdb.DBSYS1> file is a log file in which the Protection Server logs
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each database operation before performing it. When an operation is
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interrupted, the Protection Server replays the log to complete the
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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 of the cell's database server machines. When the Protection Server
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starts or restarts on a given machine, it establishes a connection with
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its peers and verifies that its copy of the database matches the copy on
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the other database server machines. If not, the Protection Servers call on
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AFS's distributed database technology, Ubik, to distribute to all of the
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machines the copy of the database with the highest version number.
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Always use the commands in the B<pts> suite to administer the Protection
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Database. It is advisable to create an archive copy of the database on a
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regular basis, using a tool such as the UNIX B<tar> command.
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=head1 SEE ALSO
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L<prdb_check(8)>,
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L<pts(8)>,
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L<ptserver(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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