Free Knowledge Resources


Linux Manual Pages


Free Software * Books

Source Code

Free Media

Linux

bdb.DB0(5)

NAME

   bdb.DB0, bdb.DBSYS1 - Contain the Backup Database and associated log

DESCRIPTION

   The bdb.DB0 file contains the Backup Database, which records
   configuration information used by the AFS Backup System along with
   cross-indexed records of the tapes created and volumes dumped using the
   Backup System commands.

   The bdb.DBSYS1 file is a log file in which the Backup Server (buserver
   process) logs each database operation before performing it. When an
   operation is interrupted, the Backup Server replays the log to complete
   the operation.

   Both files are in binary format and reside in the /var/lib/openafs/db
   directory on each database server machine that runs the Backup Server.
   When the Backup Server starts or restarts on a given machine, it
   establishes a connection with its peers and verifies that its copy of
   the bdb.DB0 file matches the copy on the other database server
   machines. If not, the Backup Servers use AFS's distributed database
   technology, Ubik, to distribute to all of the machines the copy of the
   database with the highest version number.

   Use the commands in the backup suite to administer the Backup Database.
   It is advisable to create a backup copy of the bdb.DB0 file on tape on
   a regular basis, using the UNIX tar command or another local disk
   backup utility.

SEE ALSO

   backup(8), backup_savedb(8), buserver(8)

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.



Opportunity


Personal Opportunity - Free software gives you access to billions of dollars of software at no cost. Use this software for your business, personal use or to develop a profitable skill. Access to source code provides access to a level of capabilities/information that companies protect though copyrights. Open source is a core component of the Internet and it is available to you. Leverage the billions of dollars in resources and capabilities to build a career, establish a business or change the world. The potential is endless for those who understand the opportunity.

Business Opportunity - Goldman Sachs, IBM and countless large corporations are leveraging open source to reduce costs, develop products and increase their bottom lines. Learn what these companies know about open source and how open source can give you the advantage.


Free Software


Free Software provides computer programs and capabilities at no cost but more importantly, it provides the freedom to run, edit, contribute to, and share the software. The importance of free software is a matter of access, not price. Software at no cost is a benefit but ownership rights to the software and source code is far more significant.

Free Office Software - The Libre Office suite provides top desktop productivity tools for free. This includes, a word processor, spreadsheet, presentation engine, drawing and flowcharting, database and math applications. Libre Office is available for Linux or Windows.


Free Books


The Free Books Library is a collection of thousands of the most popular public domain books in an online readable format. The collection includes great classical literature and more recent works where the U.S. copyright has expired. These books are yours to read and use without restrictions.

Source Code - Want to change a program or know how it works? Open Source provides the source code for its programs so that anyone can use, modify or learn how to write those programs themselves. Visit the GNU source code repositories to download the source.


Education


Study at Harvard, Stanford or MIT - Open edX provides free online courses from Harvard, MIT, Columbia, UC Berkeley and other top Universities. Hundreds of courses for almost all major subjects and course levels. Open edx also offers some paid courses and selected certifications.

Linux Manual Pages - A man or manual page is a form of software documentation found on Linux/Unix operating systems. Topics covered include computer programs (including library and system calls), formal standards and conventions, and even abstract concepts.


birds banner