\author{Kern Sibbald}
\date{\vspace{1.0in}\today \\
- This manual documents Bacula version \fullversion \\
+ This manual documents Bacula version \input{version} \\
\vspace{0.2in}
- Copyright {\copyright} 1999-2009, Free Software Foundation Europe
+ Copyright {\copyright} 1999-2010, Free Software Foundation Europe
e.V. \\
Bacula {\textregistered} is a registered trademark of Kern Sibbald.\\
\vspace{0.2in}
\index[general]{License!GNU Lesser General Public }
\elink{image of a Philosophical GNU}
-{\url{http://www.gnu.org/graphics/philosophicalgnu.html}} [
-\elink{English}{\url{http://www.gnu.org/copyleft/lesser.html}} |
-\elink{Japanese}{\url{http://www.gnu.org/copyleft/lesser.ja.html}} ]
+{http://www.gnu.org/graphics/philosophicalgnu.html} [
+\elink{English}{http://www.gnu.org/copyleft/lesser.html} |
+\elink{Japanese}{http://www.gnu.org/copyleft/lesser.ja.html} ]
\begin{itemize}
\item
\elink{Why you shouldn't use the Lesser GPL for your next
- library}{\url{http://www.gnu.org/philosophy/why-not-lgpl.html}}
+ library}{http://www.gnu.org/philosophy/why-not-lgpl.html}
\item
\elink{What to do if you see a possible LGPL
- violation}{\url{http://www.gnu.org/copyleft/gpl-violation.html}}
+ violation}{http://www.gnu.org/copyleft/gpl-violation.html}
\item
\elink{Translations of the LGPL}
-{\url{http://www.gnu.org/copyleft/copyleft.html\#translationsLGPL}}
+{http://www.gnu.org/copyleft/copyleft.html\#translationsLGPL}
\item The GNU Lesser General Public License as a
- \elink{text file}{\url{http://www.gnu.org/copyleft/lesser.txt}}
+ \elink{text file}{http://www.gnu.org/copyleft/lesser.txt}
\item The GNU Lesser General Public License as a
- \elink{Texinfo}{\url{http://www.gnu.org/copyleft/lesser.texi}} file
+ \elink{Texinfo}{http://www.gnu.org/copyleft/lesser.texi} file
\end{itemize}
Library General Public License. For an explanation of why this change was
necessary, read the
\elink{Why you shouldn't use the Lesser GPL for your next
-library}{\url{http://www.gnu.org/philosophy/why-not-lgpl.html}} article.
+library}{http://www.gnu.org/philosophy/why-not-lgpl.html} article.
\section{Table of Contents}
\index[general]{Table of Contents }
That's all there is to it!
Return to
-\elink{GNU's home page}{\url{http://www.gnu.org/home.html}}.
+\elink{GNU's home page}{http://www.gnu.org/home.html}.
FSF \& GNU inquiries \& questions to
\elink{gnu@gnu.org}{mailto:gnu@gnu.org}. Other
-\elink{ways to contact}{\url{http://www.gnu.org/home.html\#ContactInfo}} the FSF.
+\elink{ways to contact}{http://www.gnu.org/home.html\#ContactInfo} the FSF.
Comments on these web pages to
\elink{webmasters@www.gnu.org}{mailto:webmasters@www.gnu.org}, send other
If you have a printed copy of this manual, the details of each of
the licenses referred to in this chapter can be found in the
online version of the manual at
-\elink{http://www.bacula.org}{\url{http://www.bacula.org}}.
+\elink{http://www.bacula.org}{http://www.bacula.org}.
\section{FDL}
\index[general]{FDL }
if you would send any corrections or changes to the Bacula project.
The most recent version of the manual can always be found online
-at \elink{http://www.bacula.org}{\url{http://www.bacula.org}}.
+at \elink{http://www.bacula.org}{http://www.bacula.org}.
\section{GPL}
\index[general]{GPL }
project) has the rights to the code. This Fiduciary License Agreement
is found on the Bacula web site at:
-\elink{http://www.bacula.org/en/FLA-bacula.en.pdf}{\url{http://www.bacula.org/en/FLA-bacula.en.pdf}}
+\elink{http://www.bacula.org/en/FLA-bacula.en.pdf}{http://www.bacula.org/en/FLA-bacula.en.pdf}
and if you are submitting code, you should fill it out then sent to:
with newer information, so after reading it, if you don't find what you
want, you might try the Bacula wiki maintained by Frank Sweetser, which
contains more than just a FAQ:
-\elink{http://wiki.bacula.org}{\url{http://wiki.bacula.org}}
+\elink{http://wiki.bacula.org}{http://wiki.bacula.org}
or go directly to the FAQ at:
\elink{http://wiki.bacula.org/doku.php?id=faq}
-{\url{http://wiki.bacula.org/doku.php?id=faq}}.
+{http://wiki.bacula.org/doku.php?id=faq}.
Please also see
\ilink{the bugs section}{BugsChapter} of this document for a list
\date{\vspace{1.0in}\today \\
This manual documents Bacula version \input{version} \\
\vspace{0.2in}
- Copyright \copyright 1999-2009, Free Software Foundation Europe
+ Copyright \copyright 1999-2010, Free Software Foundation Europe
e.V. \\
\vspace{0.2in}
Permission is granted to copy, distribute and/or modify this document under the terms of the
For FreeBSD users, please see the notes below for doing further testing of
your tape drive.
+\subsection{Testing tape drive speed}
+\label{sec:btapespeed}
+
+To determine the best configuration of your tape drive, you can run the
+\texttt{speed} command available in the \texttt{btape} program.
+
+This command can have the following arguments:
+\begin{itemize}
+\item[\texttt{file\_size=n}] Specify the Maximum File Size for this test
+ (between 1 and 5GB). This counter is in GB.
+\item[\texttt{nb\_file=n}] Specify the number of file to be written. The amount
+ of data should be greater than your memory ($file\_size*nb\_file$).
+\item[\texttt{skip\_zero}] This flag permits to skip tests with constant
+ data.
+\item[\texttt{skip\_random}] This flag permits to skip tests with random
+ data.
+\item[\texttt{skip\_raw}] This flag permits to skip tests with raw access.
+\item[\texttt{skip\_block}] This flag permits to skip tests with Bacula block
+ access.
+\end{itemize}
+
+\begin{verbatim}
+*speed file_size=3 skip_raw
+btape.c:1078 Test with zero data and bacula block structure.
+btape.c:956 Begin writing 3 files of 3.221 GB with blocks of 129024 bytes.
+++++++++++++++++++++++++++++++++++++++++++
+btape.c:604 Wrote 1 EOF to "Drive-0" (/dev/nst0)
+btape.c:406 Volume bytes=3.221 GB. Write rate = 44.128 MB/s
+...
+btape.c:383 Total Volume bytes=9.664 GB. Total Write rate = 43.531 MB/s
+
+btape.c:1090 Test with random data, should give the minimum throughput.
+btape.c:956 Begin writing 3 files of 3.221 GB with blocks of 129024 bytes.
++++++++++++++++++++++++++++++++++++++++++++
+btape.c:604 Wrote 1 EOF to "Drive-0" (/dev/nst0)
+btape.c:406 Volume bytes=3.221 GB. Write rate = 7.271 MB/s
++++++++++++++++++++++++++++++++++++++++++++
+...
+btape.c:383 Total Volume bytes=9.664 GB. Total Write rate = 7.365 MB/s
+
+\end{verbatim}
+
+When using compression, the random test will give your the minimum throughput
+of your drive . The test using constant string will give you the maximum speed
+of your hardware chain. (cpu, memory, scsi card, cable, drive, tape).
+
+You can change the block size in the Storage Daemon configuration file.
+
\label{SCSITricks}
\subsection{Linux SCSI Tricks}
\index[general]{Tricks!Linux SCSI}
distribution.
For additional tips, please see the \elink{Bacula
-wiki}{\url{http://wiki.bacula.org}}.
+wiki}{http://wiki.bacula.org}.
\section{Upgrading Bacula Versions}
\label{upgrading}
This tip was provided by Alexander Kuehn.
-\elink{Bacula}{\url{http://www.bacula.org/}} is a really nice backup program except
+\elink{Bacula}{http://www.bacula.org/} is a really nice backup program except
that the manual tape changing requires user interaction with the bacula
console.
Bacula supports a variety of tape changers through the use of mtx-changer
scripts/programs. This highly flexible approach allowed me to create
-\elink{this shell script}{\url{http://www.bacula.org/en/rel-manual/mtx-changer.txt}} which does the following:
+\elink{this shell script}{http://www.bacula.org/en/rel-manual/mtx-changer.txt} which does the following:
% TODO: We need to include this in book appendix and point to it.
% TODO:
Whenever a new tape is required it sends a mail to the operator to insert the
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