mirror of
https://git.openafs.org/openafs.git
synced 2025-01-19 15:30:14 +00:00
f64a78e701
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.
42 lines
1.6 KiB
Plaintext
42 lines
1.6 KiB
Plaintext
=head1 NAME
|
|
|
|
vldb.DB0, vldb.DBSYS1 - Contain the Volume Location Database and associated log
|
|
|
|
=head1 DESCRIPTION
|
|
|
|
The file F<vldb.DB0> contains the Volume Location Database (VLDB), which
|
|
tracks the location of all AFS volumes stored on file server machines in
|
|
the cell. The Volume Location (VL) Server (B<vlserver> process) provides
|
|
information from the database to Cache Managers when they need to access
|
|
AFS data.
|
|
|
|
The file F<vldb.DBSYS1> is a log file in which the VL Server logs each
|
|
database operation before performing it. When an operation is interrupted,
|
|
the VL Server replays the log to complete the operation.
|
|
|
|
Both files are in binary format and reside in the F</usr/afs/db> directory
|
|
on each of the cell's database server machines. When the VL Server starts
|
|
or restarts on a given machine, it establishes a connection with its peers
|
|
and verifies that its copy of the database matches the copy on the other
|
|
database server machines. If not, the VL Servers call on AFS's distributed
|
|
database technology, Ubik, to distribute to all of the machines the copy
|
|
of the database with the highest version number.
|
|
|
|
Always use the commands in the B<vos> suite to administer the VLDB. It is
|
|
advisable to create an archive copy of the database on a regular basis,
|
|
using a tool such as the UNIX B<tar> command.
|
|
|
|
=head1 SEE ALSO
|
|
|
|
L<vldb_check(8)>,
|
|
L<vlserver(8)>,
|
|
L<vos(1)>
|
|
|
|
=head1 COPYRIGHT
|
|
|
|
IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved.
|
|
|
|
This documentation is covered by the IBM Public License Version 1.0. It was
|
|
converted from HTML to POD by software written by Chas Williams and Russ
|
|
Allbery, based on work by Alf Wachsmann and Elizabeth Cassell.
|