%%
%%
-\section*{DVD Volumes}
+\chapter{DVD Volumes}
\label{_DVDChapterStart}
\index[general]{DVD Volumes}
\index[general]{Writing DVDs}
\index[general]{DVD Writing}
\index[general]{Volumes!DVD}
-\addcontentsline{toc}{section}{DVD Volumes}
Bacula allows you to specify that you want to write to DVD. However,
this feature is implemented only in version 1.37 or later.
{\bf patches} directory of Bacula sources with the name
{\bf dvd+rw-tools-5.21.4.10.8.bacula.patch} for version 5.21 of the tools,
or patch {bf dvd+rw-tools-6.1.bacula.patch} if you have version 6.1
-on your system. Unfortunately, this requires you to build the dvd_rw-tools
+on your system. Unfortunately, this requires you to build the dvd\_rw-tools
from source.
The fact that Bacula cannot use the OS to write directly
to the DVD makes the whole process a bit more error prone than
writing to a disk or a tape, but nevertheless, it does work if you
use some care to set it up properly. However, at the current time
-(26 August 2006) we still consider this code to be experimental and of
+(version 1.39.30 -- 12 December 2006) we still consider this code to be
BETA quality. As a consequence, please do careful testing before relying
on DVD backups in production.
use to control the DVD writing.
\label{DVDdirectives}
-\subsection*{DVD Specific SD Directives}
+\section{DVD Specific SD Directives}
\index[general]{Directives!DVD}
\index[general]{DVD Specific SD Directives }
-\addcontentsline{toc}{subsection}{DVD Specific SD Directives}
The following directives are added to the Storage daemon's
Device resource.
{\bf /dev/dvd} depending on your system. It will not be a name such
as {\bf /mnt/cdrom}.
-\subsection*{Edit Codes for DVD Directives}
+Finally, for {\bf growisofs} to work, it must be able to lock
+a certain amount of memory in RAM. If you have restrictions on
+this function, you may have failures. Under {\bf bash}, you can
+set this with the following command:
+
+\footnotesize
+\begin{verbatim}
+ulimit -l unlimited
+\end{verbatim}
+\normalsize
+
+\section{Edit Codes for DVD Directives}
\index[general]{Directives!DVD Edit Codes}
\index[general]{Edit Codes for DVD Directives }
-\addcontentsline{toc}{subsection}{Edit Codes for DVD Directives}
Before submitting the {\bf Mount Command}, {\bf Unmount Command},
{\bf Write Part Command}, or {\bf Free Space Command} directives
-\subsection*{DVD Specific Director Directives}
+\section{DVD Specific Director Directives}
\index[general]{Directives!DVD}
\index[general]{DVD Specific Director Directives }
-\addcontentsline{toc}{subsection}{DVD Specific Director Directives}
The following directives are added to the Director's Job resource.
\label{DVDpoints}
-\subsection*{Other Points}
+\section{Other Points}
\index[general]{Points!Other }
\index[general]{Other Points }
-\addcontentsline{toc}{subsection}{Other Points}
\begin{itemize}
+\item Please be sure that you have any automatic DVD mounting
+ disabled before running Bacula -- this includes auto mounting
+ in /etc/fstab, hotplug, ... If the DVD is automatically
+ mounted by the OS, it will cause problems when Bacula tries
+ to mount/unmount the DVD.
+\item Please be sure that you the directive {\bf Write Part After Job}
+ set to {\bf yes}, otherwise the last part of the data to be
+ written will be left in the DVD spool file and not written to
+ the DVD. The DVD will then be unreadable until this last part
+ is written. If you have a series of jobs that are run one at
+ a time, you can turn this off until the last job is run.
+\item The current code is not designed to have multiple simultaneous
+ jobs writing to the DVD. As a consequence, please ensure that
+ only one DVD backup job runs at any time.
\item Writing and reading of DVD+RW seems to work quite reliably
provided you are using the patched dvd+rw-mediainfo programs.
On the other hand, we do not have enough information to ensure
The option {\bf -use-the-force-luke=4gms} was added in growisofs 5.20 to
override growisofs' behavior of always checking for the 4GB limit.
-Normally, this option is recommended for all Linux kernels 2.6.8 or
+Normally, this option is recommended for all Linux 2.6.8 kernels or
greater, since these newer kernels can handle writing more than 4GB.
See below for more details on this subject.
projects / bacula / docs / blobdiff