%%
+
%%
\chapter{New Features}
\index[general]{New Features}
This chapter presents the new features added to the development 2.5.x
-versions to be released as Bacula version 3.0.0 near the end of 2008.
+versions to be released as Bacula version 3.0.0 sometime in April 2009.
+
+\section{Accurate Backup}
+\index[general]{Accurate Backup}
+
+As with most other backup programs, by default Bacula decides what files to
+backup for Incremental and Differental backup by comparing the change
+(st\_ctime) and modification (st\_mtime) times of the file to the time the last
+backup completed. If one of those two times is later than the last backup
+time, then the file will be backed up. This does not, however, permit tracking
+what files have been deleted and will miss any file with an old time that may
+have been restored to or moved onto the client filesystem.
+
+\subsection{Accurate = \lt{}yes|no\gt{}}
+If the {\bf Accurate = \lt{}yes|no\gt{}} directive is enabled (default no) in
+the Job resource, the job will be run as an Accurate Job. For a {\bf Full}
+backup, there is no difference, but for {\bf Differential} and {\bf
+ Incremental} backups, the Director will send a list of all previous files
+backed up, and the File daemon will use that list to determine if any new files
+have been added or or moved and if any files have been deleted. This allows
+Bacula to make an accurate backup of your system to that point in time so that
+if you do a restore, it will restore your system exactly.
+
+One note of caution
+about using Accurate backup is that it requires more resources (CPU and memory)
+on both the Director and the Client machines to create the list of previous
+files backed up, to send that list to the File daemon, for the File daemon to
+keep the list (possibly very big) in memory, and for the File daemon to do
+comparisons between every file in the FileSet and the list. In particular,
+if your client has lots of files (more than a few million), you will need
+lots of memory on the client machine.
+
+Accurate must not be enabled when backing up with a plugin that is not
+specially designed to work with Accurate. If you enable it, your restores
+will probably not work correctly.
+
+This project was funded by Bacula Systems.
+
+
+
+\section{Copy Jobs}
+\index[general]{Copy Jobs}
+
+A new {\bf Copy} job type 'C' has been implemented. It is similar to the
+existing Migration feature with the exception that the Job that is copied is
+left unchanged. This essentially creates two identical copies of the same
+backup. However, the copy is treated as a copy rather than a backup job, and
+hence is not directly available for restore. The {\bf restore} command lists
+copy jobs and allows selection of copies by using \texttt{jobid=}
+option. If the keyword {\bf copies} is present on the command line, Bacula will
+display the list of all copies for selected jobs.
+
+\begin{verbatim}
+* restore copies
+[...]
+These JobIds have copies as follows:
++-------+------------------------------------+-----------+------------------+
+| JobId | Job | CopyJobId | MediaType |
++-------+------------------------------------+-----------+------------------+
+| 2 | CopyJobSave.2009-02-17_16.31.00.11 | 7 | DiskChangerMedia |
++-------+------------------------------------+-----------+------------------+
++-------+-------+----------+----------+---------------------+------------------+
+| JobId | Level | JobFiles | JobBytes | StartTime | VolumeName |
++-------+-------+----------+----------+---------------------+------------------+
+| 19 | F | 6274 | 76565018 | 2009-02-17 16:30:45 | ChangerVolume002 |
+| 2 | I | 1 | 5 | 2009-02-17 16:30:51 | FileVolume001 |
++-------+-------+----------+----------+---------------------+------------------+
+You have selected the following JobIds: 19,2
+
+Building directory tree for JobId(s) 19,2 ... ++++++++++++++++++++++++++++++++++++++++++++
+5,611 files inserted into the tree.
+...
+\end{verbatim}
+
+
+The Copy Job runs without using the File daemon by copying the data from the
+old backup Volume to a different Volume in a different Pool. See the Migration
+documentation for additional details. For copy Jobs there is a new selection
+criterium named PoolUncopiedJobs which copies all jobs from a pool to an other
+pool which were not copied before. Next to that the client, volume, job or sql
+query are possible ways of selecting jobs which should be copied. Selection
+types like smallestvolume, oldestvolume, pooloccupancy and pooltime are
+probably more suited for migration jobs only. But we could imagine some people
+have a valid use for those kind of copy jobs too.
+
+If bacula founds a copy when a job record is purged (deleted) from the catalog,
+it will promote the copy as \textsl{real} backup and will make it available for
+automatic restore. If more than one copy is available, it will promote the copy
+with the smallest jobid.
+
+A nice solution which can be build with the new copy jobs is what is
+called the disk-to-disk-to-tape backup (DTDTT). A sample config could
+look somethings like the one below:
+
+\begin{verbatim}
+Pool {
+ Name = FullBackupsVirtualPool
+ Pool Type = Backup
+ Purge Oldest Volume = Yes
+ Storage = vtl
+ NextPool = FullBackupsTapePool
+}
+
+Pool {
+ Name = FullBackupsTapePool
+ Pool Type = Backup
+ Recycle = Yes
+ AutoPrune = Yes
+ Volume Retention = 365 days
+ Storage = superloader
+}
+
+#
+# Fake fileset for copy jobs
+#
+Fileset {
+ Name = None
+ Include {
+ Options {
+ signature = MD5
+ }
+ }
+}
+
+#
+# Fake client for copy jobs
+#
+Client {
+ Name = None
+ Address = localhost
+ Password = "NoNe"
+ Catalog = MyCatalog
+}
+
+#
+# Default template for a CopyDiskToTape Job
+#
+JobDefs {
+ Name = CopyDiskToTape
+ Type = Copy
+ Messages = StandardCopy
+ Client = None
+ FileSet = None
+ Selection Type = PoolUncopiedJobs
+ Maximum Concurrent Jobs = 10
+ SpoolData = No
+ Allow Duplicate Jobs = Yes
+ Allow Higher Duplicates = No
+ Cancel Queued Duplicates = No
+ Cancel Running Duplicates = No
+ Priority = 13
+}
+
+Schedule {
+ Name = DaySchedule7:00
+ Run = Level=Full daily at 7:00
+}
+
+Job {
+ Name = CopyDiskToTapeFullBackups
+ Enabled = Yes
+ Schedule = DaySchedule7:00
+ Pool = FullBackupsVirtualPool
+ JobDefs = CopyDiskToTape
+}
+\end{verbatim}
+
+The example above had 2 pool which are copied using the PoolUncopiedJobs
+selection criteria. Normal Full backups go to the Virtual pool and are copied
+to the Tape pool the next morning.
+
+The command \texttt{list copies [jobid=x,y,z]} lists copies for a given
+\textbf{jobid}.
+
+\begin{verbatim}
+*list copies
++-------+------------------------------------+-----------+------------------+
+| JobId | Job | CopyJobId | MediaType |
++-------+------------------------------------+-----------+------------------+
+| 9 | CopyJobSave.2008-12-20_22.26.49.05 | 11 | DiskChangerMedia |
++-------+------------------------------------+-----------+------------------+
+\end{verbatim}
+
+\section{ACL Updates}
+\index[general]{ACL Updates}
+The whole ACL code had been overhauled and in this version each platforms has
+different streams for each type of acl available on such an platform. As ACLs
+between platforms tend to be not that portable (most implement POSIX acls but
+some use an other draft or a completely different format) we currently only
+allow certain platform specific ACL streams to be decoded and restored on the
+same platform that they were created on. The old code allowed to restore ACL
+cross platform but the comments already mention that not being to wise. For
+backward compatability the new code will accept the two old ACL streams and
+handle those with the platform specific handler. But for all new backups it
+will save the ACLs using the new streams.
+
+Currently the following platforms support ACLs:
+
+\begin{itemize}
+ \item {\bf AIX}
+ \item {\bf Darwin/OSX}
+ \item {\bf FreeBSD}
+ \item {\bf HPUX}
+ \item {\bf IRIX}
+ \item {\bf Linux}
+ \item {\bf Tru64}
+ \item {\bf Solaris}
+\end{itemize}
+
+Currently we support the following ACL types (these ACL streams use a reserved
+part of the stream numbers):
+
+\begin{itemize}
+\item {\bf STREAM\_ACL\_AIX\_TEXT} 1000 AIX specific string representation from
+ acl\_get
+ \item {\bf STREAM\_ACL\_DARWIN\_ACCESS\_ACL} 1001 Darwin (OSX) specific acl\_t
+ string representation from acl\_to\_text (POSIX acl)
+ \item {\bf STREAM\_ACL\_FREEBSD\_DEFAULT\_ACL} 1002 FreeBSD specific acl\_t
+ string representation from acl\_to\_text (POSIX acl) for default acls.
+ \item {\bf STREAM\_ACL\_FREEBSD\_ACCESS\_ACL} 1003 FreeBSD specific acl\_t
+ string representation from acl\_to\_text (POSIX acl) for access acls.
+ \item {\bf STREAM\_ACL\_HPUX\_ACL\_ENTRY} 1004 HPUX specific acl\_entry
+ string representation from acltostr (POSIX acl)
+ \item {\bf STREAM\_ACL\_IRIX\_DEFAULT\_ACL} 1005 IRIX specific acl\_t string
+ representation from acl\_to\_text (POSIX acl) for default acls.
+ \item {\bf STREAM\_ACL\_IRIX\_ACCESS\_ACL} 1006 IRIX specific acl\_t string
+ representation from acl\_to\_text (POSIX acl) for access acls.
+ \item {\bf STREAM\_ACL\_LINUX\_DEFAULT\_ACL} 1007 Linux specific acl\_t
+ string representation from acl\_to\_text (POSIX acl) for default acls.
+ \item {\bf STREAM\_ACL\_LINUX\_ACCESS\_ACL} 1008 Linux specific acl\_t string
+ representation from acl\_to\_text (POSIX acl) for access acls.
+ \item {\bf STREAM\_ACL\_TRU64\_DEFAULT\_ACL} 1009 Tru64 specific acl\_t
+ string representation from acl\_to\_text (POSIX acl) for default acls.
+ \item {\bf STREAM\_ACL\_TRU64\_DEFAULT\_DIR\_ACL} 1010 Tru64 specific acl\_t
+ string representation from acl\_to\_text (POSIX acl) for default acls.
+ \item {\bf STREAM\_ACL\_TRU64\_ACCESS\_ACL} 1011 Tru64 specific acl\_t string
+ representation from acl\_to\_text (POSIX acl) for access acls.
+ \item {\bf STREAM\_ACL\_SOLARIS\_ACLENT} 1012 Solaris specific aclent\_t
+ string representation from acltotext or acl\_totext (POSIX acl)
+ \item {\bf STREAM\_ACL\_SOLARIS\_ACE} 1013 Solaris specific ace\_t string
+ representation from from acl\_totext (NFSv4 or ZFS acl)
+\end{itemize}
+
+In future versions we might support conversion functions from one type of acl
+into an other for types that are either the same or easily convertable. For now
+the streams are seperate and restoring them on a platform that doesn't
+recognize them will give you a warning.
+
+\section{Extended Attributes}
+\index[general]{Extended Attributes}
+Something that was on the project list for some time is now implemented for
+platforms that support a similar kind of interface. Its the support for backup
+and restore of so called extended attributes. As extended attributes are so
+platform specific these attributes are saved in seperate streams for each
+platform. Restores of the extended attributes can only be performed on the
+same platform the backup was done. There is support for all types of extended
+attributes, but restoring from one type of filesystem onto an other type of
+filesystem on the same platform may lead to supprises. As extended attributes
+can contain any type of data they are stored as a series of so called
+value-pairs. This data must be seen as mostly binary and is stored as such.
+As security labels from selinux are also extended attributes this option also
+stores those labels and no specific code is enabled for handling selinux
+security labels.
+
+Currently the following platforms support extended attributes:
+\begin{itemize}
+ \item {\bf Darwin/OSX}
+ \item {\bf FreeBSD}
+ \item {\bf Linux}
+ \item {\bf NetBSD}
+\end{itemize}
+
+On linux acls are also extended attributes, as such when you enable ACLs on a
+Linux platform it will NOT save the same data twice e.g. it will save the ACLs
+and not the same exteneded attribute.
+
+To enable the backup of extended attributes please add the following to your
+fileset definition.
+\begin{verbatim}
+ FileSet {
+ Name = "MyFileSet"
+ Include {
+ Options {
+ signature = MD5
+ xattrsupport = yes
+ }
+ File = ...
+ }
+ }
+\end{verbatim}
+
+\section{Shared objects}
+\index[general]{Shared objects}
+A default build of Bacula will now create the libraries as shared objects
+(.so) rather than static libraries as was previously the case.
+The shared libraries are built using {\bf libtool} so it should be quite
+portable.
+
+An important advantage of using shared objects is that on a machine with the
+Directory, File daemon, the Storage daemon, and a console, you will have only
+one copy of the code in memory rather than four copies. Also the total size of
+the binary release is smaller since the library code appears only once rather
+than once for every program that uses it; this results in significant reduction
+in the size of the binaries particularly for the utility tools.
+
+In order for the system loader to find the shared objects when loading the
+Bacula binaries, the Bacula shared objects must either be in a shared object
+directory known to the loader (typically /usr/lib) or they must be in the
+directory that may be specified on the {\bf ./configure} line using the {\bf
+ {-}{-}libdir} option as:
+
+\begin{verbatim}
+ ./configure --libdir=/full-path/dir
+\end{verbatim}
+
+the default is /usr/lib. If {-}{-}libdir is specified, there should be
+no need to modify your loader configuration provided that
+the shared objects are installed in that directory (Bacula
+does this with the make install command). The shared objects
+that Bacula references are:
+
+\begin{verbatim}
+libbaccfg.so
+libbacfind.so
+libbacpy.so
+libbac.so
+\end{verbatim}
+
+These files are symbolically linked to the real shared object file,
+which has a version number to permit running multiple versions of
+the libraries if desired (not normally the case).
+
+If you have problems with libtool or you wish to use the old
+way of building static libraries, or you want to build a static
+version of Bacula you may disable
+libtool on the configure command line with:
+
+\begin{verbatim}
+ ./configure --disable-libtool
+\end{verbatim}
+
+
+\section{Building Static versions of Bacula}
+\index[general]{Static linking}
+In order to build static versions of Bacula, in addition
+to configuration options that were needed you now must
+also add --disable-libtool. Example
+
+\begin{verbatim}
+ ./configure --enable-static-client-only --disable-libtool
+\end{verbatim}
+
\section{Virtual Backup (Vbackup)}
\index[general]{Virtual Backup}
In some respects the Vbackup feature works similar to a Migration job, in
that Bacula normally reads the data from the pool specified in the
-Job resource, and writes it to the \bf{Next Pool} specified in the
-Job resource. The input Storage resource and the Output Storage resource
-must be different.
+Job resource, and writes it to the {\bf Next Pool} specified in the
+Job resource. Note, this means that usually the output from the Virtual
+Backup is written into a different pool from where your prior backups
+are saved. Doing it this way guarantees that you will not get a deadlock
+situation attempting to read and write to the same volume in the Storage
+daemon. If you then want to do subsequent backups, you may need to
+move the Virtual Full Volume back to your normal backup pool.
+Alternatively, you can set your {\bf Next Pool} to point to the current
+pool. This will cause Bacula to read and write to Volumes in the
+current pool. In general, this will work, but doing the Virtual Full
+requires reading more than one Volume, this procedure may cause a
+deadlock where Bacula is writing on a Volume that is later needed
+for reading.
The Vbackup is enabled on a Job by Job in the Job resource by specifying
-a level of \bf{VirtualFull}.
+a level of {\bf VirtualFull}.
A typical Job resource definition might look like the following:
Pool {
Name = Default
Pool Type = Backup
- Recycle = yes # Bacula can automatically recycle Volumes
- AutoPrune = yes # Prune expired volumes
- Volume Retention = 365d # one year
+ Recycle = yes # Automatically recycle Volumes
+ AutoPrune = yes # Prune expired volumes
+ Volume Retention = 365d # one year
NextPool = Full
Storage = File
}
Pool {
Name = Full
Pool Type = Backup
- Recycle = yes # Bacula can automatically recycle Volumes
- AutoPrune = yes # Prune expired volumes
- Volume Retention = 365d # one year
+ Recycle = yes # Automatically recycle Volumes
+ AutoPrune = yes # Prune expired volumes
+ Volume Retention = 365d # one year
Storage = DiskChanger
}
# Definition of DDS Virtual tape disk storage device
Storage {
Name = DiskChanger
- Address = localhost # N.B. Use a fully qualified name here
+ Address = localhost # N.B. Use a fully qualified name here
Password = "yyy"
Device = DiskChanger
Media Type = DiskChangerMedia
run job=MyBackup level=Incremental
\end{verbatim}
-So providing there were changes between each of those jobs, you would end up with
-a Full backup, a Differential, which includes the first Incremental backup, then two
-Incremental backups. All the above jobs would be written to the \bf{Default} pool.
+So providing there were changes between each of those jobs, you would end up
+with a Full backup, a Differential, which includes the first Incremental
+backup, then two Incremental backups. All the above jobs would be written to
+the {\bf Default} pool.
-To consolidate those backups into a new Full backup, you would run the following:
+To consolidate those backups into a new Full backup, you would run the
+following:
\begin{verbatim}
run job=MyBackup level=VirtualFull
\end{verbatim}
-And it would produce a new Full backup without using the client, and the output would
-be written to the \bf{Full} Pool which uses the Diskchanger Storage.
+And it would produce a new Full backup without using the client, and the output
+would be written to the {\bf Full} Pool which uses the Diskchanger Storage.
+
+If the Virtual Full is run, and there are no prior Jobs, the Virtual Full will
+fail with an error.
+
+Note, the Start and End time of the Virtual Full backup is set to the
+values for the last job included in the Virtual Full (in the above example,
+it is an Increment). This is so that if another incremental is done, which
+will be based on the Virtual Full, it will backup all files from the
+last Job included in the Virtual Full rather than from the time the Virtual
+Full was actually run.
+
+
+
+\section{Catalog Format}
+\index[general]{Catalog Format}
+Bacula 3.0 comes with some changes to the catalog format. The upgrade
+operation will convert the FileId field of the File table from 32 bits (max 4
+billion table entries) to 64 bits (very large number of items). The
+conversion process can take a bit of time and will likely DOUBLE THE SIZE of
+your catalog during the conversion. Also you won't be able to run jobs during
+this conversion period. For example, a 3 million file catalog will take 2
+minutes to upgrade on a normal machine. Please don't forget to make a valid
+backup of your database before executing the upgrade script. See the
+ReleaseNotes for additional details.
+
+\section{64 bit Windows Client}
+\index[general]{Win64 Client}
+Unfortunately, Microsoft's implementation of Volume Shadown Copy (VSS) on
+their 64 bit OS versions is not compatible with a 32 bit Bacula Client.
+As a consequence, we are also releasing a 64 bit version of the Bacula
+Windows Client (win64bacula-3.0.0.exe) that does work with VSS.
+These binaries should only be installed on 64 bit Windows operating systems.
+What is important is not your hardware but whether or not you have
+a 64 bit version of the Windows OS.
+
+Compared to the Win32 Bacula Client, the 64 bit release contains a few differences:
+\begin{enumerate}
+\item Before installing the Win64 Bacula Client, you must totally
+ deinstall any prior 2.4.x Client installation using the
+ Bacula deinstallation (see the menu item). You may want
+ to save your .conf files first.
+\item Only the Client (File daemon) is ported to Win64, the Director
+ and the Storage daemon are not in the 64 bit Windows installer.
+\item bwx-console is not yet ported.
+\item bconsole is ported but it has not been tested.
+\item The documentation is not included in the installer.
+\item Due to Vista security restrictions imposed on a default installation
+ of Vista, before upgrading the Client, you must manually stop
+ any prior version of Bacula from running, otherwise the install
+ will fail.
+\item Due to Vista security restrictions imposed on a default installation
+ of Vista, attempting to edit the conf files via the menu items
+ will fail. You must directly edit the files with appropriate
+ permissions. Generally double clicking on the appropriate .conf
+ file will work providing you have sufficient permissions.
+\item All Bacula files are now installed in
+ {\bf C:/Program Files/Bacula} except the main menu items,
+ which are installed as before. This vastly simplifies the installation.
+\item If you are running on a foreign language version of Windows, most
+ likely {\bf C:/Program Files} does not exist, so you should use the
+ Custom installation and enter an appropriate location to install
+ the files.
+\item The 3.0.0 Win32 Client continues to install files in the locations used
+ by prior versions. For the next version we will convert it to use
+ the same installation conventions as the Win64 version.
+\end{enumerate}
+
+This project was funded by Bacula Systems.
+
+
+\section{Duplicate Job Control}
+\index[general]{Duplicate Jobs}
+The new version of Bacula provides four new directives that
+give additional control over what Bacula does if duplicate jobs
+are started. A duplicate job in the sense we use it here means
+a second or subsequent job with the same name starts. This
+happens most frequently when the first job runs longer than expected because no
+tapes are available.
+
+The four directives each take as an argument a {\bf yes} or {\bf no} value and
+are specified in the Job resource.
+
+They are:
+
+\subsection{Allow Duplicate Jobs = \lt{}yes|no\gt{}}
+\index[general]{Allow Duplicate Jobs}
+ If this directive is enabled duplicate jobs will be run. If
+ the directive is set to {\bf no} (default) then only one job of a given name
+ may run at one time, and the action that Bacula takes to ensure only
+ one job runs is determined by the other directives (see below).
+
+\subsection{Allow Higher Duplicates = \lt{}yes|no\gt{}}
+\index[general]{Allow Higher Duplicates}
+ If this directive is set to {\bf yes} (default) the job with a higher
+ priority (lower priority number) will be permitted to run. If the
+ priorities of the two jobs are the same, the outcome is determined by
+ other directives (see below).
+
+\subsection{Cancel Queued Duplicates = \lt{}yes|no\gt{}}
+\index[general]{Cancel Queued Duplicates}
+ If this directive is set to {\bf yes} (default) any job that is
+ already queued to run but not yet running will be canceled.
+
+\subsection{Cancel Running Duplicates = \lt{}yes|no\gt{}}
+\index[general]{Cancel Running Duplicates}
+ If this directive is set to {\bf yes} any job that is already running
+ will be canceled. The default is {\bf no}.
+
+
+\section{TLS Authentication}
+\index[general]{TLS Authentication}
+In Bacula version 2.5.x and later, in addition to the normal Bacula
+CRAM-MD5 authentication that is used to authenticate each Bacula
+connection, you can specify that you want TLS Authentication as well,
+which will provide more secure authentication.
+
+This new feature uses Bacula's existing TLS code (normally used for
+communications encryption) to do authentication. To use it, you must
+specify all the TLS directives normally used to enable communications
+encryption (TLS Enable, TLS Verify Peer, TLS Certificate, ...) and
+a new directive:
+
+\subsection{TLS Authenticate = yes}
+\begin{verbatim}
+TLS Authenticate = yes
+\end{verbatim}
+
+in the main daemon configuration resource (Director for the Director,
+Client for the File daemon, and Storage for the Storage daemon).
+
+When {\bf TLS Authenticate} is enabled, after doing the CRAM-MD5
+authentication, Bacula will also do TLS authentication, then TLS
+encryption will be turned off, and the rest of the communication between
+the two Bacula daemons will be done without encryption.
+
+If you want to encrypt communications data, use the normal TLS directives
+but do not turn on {\bf TLS Authenticate}.
+
+\section{bextract non-portable Win32 data}
+\index[general]{bextract handles Win32 non-portable data}
+{\bf bextract} has been enhanced to be able to restore
+non-portable Win32 data to any OS. Previous versions were
+unable to restore non-portable Win32 data to machines that
+did not have the Win32 BackupRead and BackupWrite API calls.
+
+\section{State File updated at Job Termination}
+\index[general]{State File}
+In previous versions of Bacula, the state file, which provides a
+summary of previous jobs run in the {\bf status} command output was
+updated only when Bacula terminated, thus if the daemon crashed, the
+state file might not contain all the run data. This version of
+the Bacula daemons updates the state file on each job termination.
+
+\section{MaxFullInterval = \lt{}time-interval\gt{}}
+\index[general]{MaxFullInterval}
+The new Job resource directive {\bf Max Full Interval = \lt{}time-interval\gt{}}
+can be used to specify the maximum time interval between {\bf Full} backup
+jobs. When a job starts, if the time since the last Full backup is
+greater than the specified interval, and the job would normally be an
+{\bf Incremental} or {\bf Differential}, it will be automatically
+upgraded to a {\bf Full} backup.
+
+\section{MaxDiffInterval = \lt{}time-interval\gt{}}
+\index[general]{MaxDiffInterval}
+The new Job resource directive {\bf Max Diff Interval = \lt{}time-interval\gt{}}
+can be used to specify the maximum time interval between {\bf Differential} backup
+jobs. When a job starts, if the time since the last Differential backup is
+greater than the specified interval, and the job would normally be an
+{\bf Incremental}, it will be automatically
+upgraded to a {\bf Differential} backup.
+
+\section{Honor No Dump Flag = \lt{}yes|no\gt{}}
+\index[general]{MaxDiffInterval}
+On FreeBSD systems, each file has a {\bf no dump flag} that can be set
+by the user, and when it is set it is an indication to backup programs
+to not backup that particular file. This version of Bacula contains a
+new Options directive within a FileSet resource, which instructs Bacula to
+obey this flag. The new directive is:
+
+\begin{verbatim}
+ Honor No Dump Flag = yes|no
+\end{verbatim}
+
+The default value is {\bf no}.
+
+
+\section{Exclude Dir Containing = \lt{}filename-string\gt{}}
+\index[general]{IgnoreDir}
+The {\bf ExcludeDirContaining = \lt{}filename\gt{}} is a new directive that
+can be added to the Include section of the FileSet resource. If the specified
+filename ({\bf filename-string}) is found on the Client in any directory to be
+backed up, the whole directory will be ignored (not backed up). For example:
+
+\begin{verbatim}
+ # List of files to be backed up
+ FileSet {
+ Name = "MyFileSet"
+ Include {
+ Options {
+ signature = MD5
+ }
+ File = /home
+ Exclude Dir Containing = .excludeme
+ }
+ }
+\end{verbatim}
+
+But in /home, there may be hundreds of directories of users and some
+people want to indicate that they don't want to have certain
+directories backed up. For example, with the above FileSet, if
+the user or sysadmin creates a file named {\bf .excludeme} in
+specific directories, such as
+
+\begin{verbatim}
+ /home/user/www/cache/.excludeme
+ /home/user/temp/.excludeme
+\end{verbatim}
+
+then Bacula will not backup the two directories named:
+
+\begin{verbatim}
+ /home/user/www/cache
+ /home/user/temp
+\end{verbatim}
+
+NOTE: subdirectories will not be backed up. That is, the directive
+applies to the two directories in question and any children (be they
+files, directories, etc).
+
+
+\section{Bacula Plugins}
+\index[general]{Plugin}
+Support for shared object plugins has been implemented in the Linux, Unix
+and Win32 File daemons. The API will be documented separately in
+the Developer's Guide or in a new document. For the moment, there is
+a single plugin named {\bf bpipe} that allows an external program to
+get control to backup and restore a file.
+
+Plugins are also planned (partially implemented) in the Director and the
+Storage daemon.
+
+\subsection{Plugin Directory}
+\index[general]{Plugin Directory}
+Each daemon (DIR, FD, SD) has a new {\bf Plugin Directory} directive that may
+be added to the daemon definition resource. The directory takes a quoted
+string argument, which is the name of the directory in which the daemon can
+find the Bacula plugins. If this directive is not specified, Bacula will not
+load any plugins. Since each plugin has a distinctive name, all the daemons
+can share the same plugin directory.
+
+\subsection{Plugin Options}
+\index[general]{Plugin Options}
+The {\bf Plugin Options} directive takes a quoted string
+arguement (after the equal sign) and may be specified in the
+Job resource. The options specified will be passed to all plugins
+when they are run. This each plugin must know what it is looking
+for. The value defined in the Job resource can be modified
+by the user when he runs a Job via the {\bf bconsole} command line
+prompts.
+
+Note: this directive may be specified, and there is code to modify
+the string in the run command, but the plugin options are not yet passed to
+the plugin (i.e. not fully implemented).
+
+\subsection{Plugin Options ACL}
+\index[general]{Plugin Options ACL}
+The {\bf Plugin Options ACL} directive may be specified in the
+Director's Console resource. It functions as all the other ACL commands
+do by permitting users running restricted consoles to specify a
+{\bf Plugin Options} that overrides the one specified in the Job
+definition. Without this directive restricted consoles may not modify
+the Plugin Options.
+
+\subsection{Plugin = \lt{}plugin-command-string\gt{}}
+\index[general]{Plugin}
+The {\bf Plugin} directive is specified in the Include section of
+a FileSet resource where you put your {\bf File = xxx} directives.
+For example:
+
+\begin{verbatim}
+ FileSet {
+ Name = "MyFileSet"
+ Include {
+ Options {
+ signature = MD5
+ }
+ File = /home
+ Plugin = "bpipe:..."
+ }
+ }
+\end{verbatim}
+
+In the above example, when the File daemon is processing the directives
+in the Include section, it will first backup all the files in {\bf /home}
+then it will load the plugin named {\bf bpipe} (actually bpipe-dir.so) from
+the Plugin Directory. The syntax and semantics of the Plugin directive
+require the first part of the string up to the colon (:) to be the name
+of the plugin. Everything after the first colon is ignored by the File daemon but
+is passed to the plugin. Thus the plugin writer may define the meaning of the
+rest of the string as he wishes.
+
+Please see the next section for information about the {\bf bpipe} Bacula
+plugin.
+
+\section{The bpipe Plugin}
+\index[general]{The bpipe Plugin}
+The {\bf bpipe} plugin is provided in the directory src/plugins/fd/bpipe-fd.c of
+the Bacula source distribution. When the plugin is compiled and linking into
+the resulting dynamic shared object (DSO), it will have the name {\bf bpipe-fd.so}.
+
+The purpose of the plugin is to provide an interface to any system program for
+backup and restore. As specified above the {\bf bpipe} plugin is specified in
+the Include section of your Job's FileSet resource. The full syntax of the
+plugin directive as interpreted by the {\bf bpipe} plugin (each plugin is free
+to specify the sytax as it wishes) is:
+
+\begin{verbatim}
+ Plugin = "<field1>:<field2>:<field3>:<field4>"
+\end{verbatim}
+
+where
+\begin{description}
+\item {\bf field1} is the name of the plugin with the trailing {\bf -fd.so}
+stripped off, so in this case, we would put {\bf bpipe} in this field.
+
+\item {\bf field2} specifies the namespace, which for {\bf bpipe} is the
+pseudo path and filename under which the backup will be saved. This pseudo
+path and filename will be seen by the user in the restore file tree.
+For example, if the value is {\bf /MYSQL/regress.sql}, the data
+backed up by the plugin will be put under that "pseudo" path and filename.
+You must be careful to choose a naming convention that is unique to avoid
+a conflict with a path and filename that actually exists on your system.
+
+\item {\bf field3} for the {\bf bpipe} plugin
+specifies the "reader" program that is called by the plugin during
+backup to read the data. {\bf bpipe} will call this program by doing a
+{\bf popen} on it.
+
+\item {\bf field4} for the {\bf bpipe} plugin
+specifies the "writer" program that is called by the plugin during
+restore to write the data back to the filesystem.
+\end{description}
+
+Putting it all together, the full plugin directive line might look
+like the following:
+
+\begin{verbatim}
+Plugin = "bpipe:/MYSQL/regress.sql:mysqldump -f
+ --opt --databases bacula:mysql"
+\end{verbatim}
+
+The directive has been split into two lines, but within the {\bf bacula-dir.conf} file
+would be written on a single line.
+
+This causes the File daemon to call the {\bf bpipe} plugin, which will write
+its data into the "pseudo" file {\bf /MYSQL/regress.sql} by calling the
+program {\bf mysqldump -f --opt --database bacula} to read the data during
+backup. The mysqldump command outputs all the data for the database named
+{\bf bacula}, which will be read by the plugin and stored in the backup.
+During restore, the data that was backed up will be sent to the program
+specified in the last field, which in this case is {\bf mysql}. When
+{\bf mysql} is called, it will read the data sent to it by the plugn
+then write it back to the same database from which it came ({\bf bacula}
+in this case).
+
+The {\bf bpipe} plugin is a generic pipe program, that simply transmits
+the data from a specified program to Bacula for backup, and then from Bacula to
+a specified program for restore.
+
+By using different command lines to {\bf bpipe},
+you can backup any kind of data (ASCII or binary) depending
+on the program called.
+
+\section{Microsoft Exchange Server 2003/2007 Plugin}
+\index[general]{Microsoft Exchange Server 2003/2007 Plugin}
+\subsection{Background}
+The Exchange plugin was made possible by a funded development project
+between Equiinet Ltd -- www.equiinet.com (many thanks) and Bacula Systems.
+The code for the plugin was written by James Harper, and the Bacula core
+code by Kern Sibbald. All the code for this funded development has become
+part of the Bacula project. Thanks to everyone who made it happen.
+
+\subsection{Concepts}
+Although it is possible to backup Exchange using Bacula VSS the Exchange
+plugin adds a good deal of functionality, because while Bacula VSS
+completes a full backup (snapshot) of Exchange, it does
+not support Incremental or Differential backups, restoring is more
+complicated, and a single database restore is not possible.
+
+Microsoft Exchange organises its storage into Storage Groups with
+Databases inside them. A default installation of Exchange will have a
+single Storage Group called 'First Storage Group', with two Databases
+inside it, "Mailbox Store (SERVER NAME)" and
+"Public Folder Store (SERVER NAME)",
+which hold user email and public folders respectively.
+
+In the default configuration, Exchange logs everything that happens to
+log files, such that if you have a backup, and all the log files since,
+you can restore to the present time. Each Storage Group has its own set
+of log files and operates independently of any other Storage Groups. At
+the Storage Group level, the logging can be turned off by enabling a
+function called "Enable circular logging". At this time the Exchange
+plugin will not function if this option is enabled.
+
+The plugin allows backing up of entire storage groups, and the restoring
+of entire storage groups or individual databases. Backing up and
+restoring at the individual mailbox or email item is not supported but
+can be simulated by use of the "Recovery" Storage Group (see below).
+
+\subsection{Installing}
+The Exchange plugin requires a DLL that is shipped with Microsoft
+Exchanger Server called {\bf esebcli2.dll}. Assuming Exchange is installed
+correctly the Exchange plugin should find this automatically and run
+without any additional installation.
+
+If the DLL can not be found automatically it will need to be copied into
+the Bacula installation
+directory (eg C:\verb+\+Program Files\verb+\+Bacula\verb+\+bin). The Exchange API DLL is
+named esebcli2.dll and is found in C:\verb+\+Program Files\verb+\+Exchsrvr\verb+\+bin on a
+default Exchange installation.
+
+\subsection{Backup up}
+To back up an Exchange server the Fileset definition must contain at
+least {\bf Plugin = "exchange:/@EXCHANGE/Microsoft Information Store"} for
+the backup to work correctly. The 'exchange:' bit tells Bacula to look
+for the exchange plugin, the '@EXCHANGE' bit makes sure all the backed
+up files are prefixed with something that isn't going to share a name
+with something outside the plugin, and the 'Microsoft Information Store'
+bit is required also. It is also possible to add the name of a storage
+group to the "Plugin =" line, eg \\
+{\bf Plugin = "exchange:/@EXCHANGE/Microsoft Information Store/First Storage Group"} \\
+if you want only a single storage group backed up.
+
+Additionally, you can suffix the 'Plugin =' directive with
+":notrunconfull" which will tell the plugin not to truncate the Exchange
+database at the end of a full backup.
+
+An Incremental or Differential backup will backup only the database logs
+for each Storage Group by inspecting the "modified date" on each
+physical log file. Because of the way the Exchange API works, the last
+logfile backed up on each backup will always be backed up by the next
+Incremental or Differential backup too. This adds 5MB to each
+Incremental or Differential backup size but otherwise does not cause any
+problems.
+
+By default, a normal VSS fileset containing all the drive letters will
+also back up the Exchange databases using VSS. This will interfere with
+the plugin and Exchange's shared ideas of when the last full backup was
+done, and may also truncate log files incorrectly. It is important,
+therefore, that the Exchange database files be excluded from the backup,
+although the folders the files are in should be included, or they will
+have to be recreated manually if a baremetal restore is done.
+
+\begin{verbatim}
+FileSet {
+ Include {
+ File = C:/Program Files/Exchsrvr/mdbdata
+ Plugin = "exchange:..."
+ }
+ Exclude {
+ File = C:/Program Files/Exchsrvr/mdbdata/E00.chk
+ File = C:/Program Files/Exchsrvr/mdbdata/E00.log
+ File = C:/Program Files/Exchsrvr/mdbdata/E000000F.log
+ File = C:/Program Files/Exchsrvr/mdbdata/E0000010.log
+ File = C:/Program Files/Exchsrvr/mdbdata/E0000011.log
+ File = C:/Program Files/Exchsrvr/mdbdata/E00tmp.log
+ File = C:/Program Files/Exchsrvr/mdbdata/priv1.edb
+ }
+}
+\end{verbatim}
+
+The advantage of excluding the above files is that you can significantly
+reduce the size of your backup since all the important Exchange files
+will be properly saved by the Plugin.
+
+
+\subsection{Restoring}
+The restore operation is much the same as a normal Bacula restore, with
+the following provisos:
+
+\begin{itemize}
+\item The {\bf Where} restore option must not be specified
+\item Each Database directory must be marked as a whole. You cannot just
+ select (say) the .edb file and not the others.
+\item If a Storage Group is restored, the directory of the Storage Group
+ must be marked too.
+\item It is possible to restore only a subset of the available log files,
+ but they {\bf must} be contiguous. Exchange will fail to restore correctly
+ if a log file is missing from the sequence of log files
+\item Each database to be restored must be dismounted and marked as "Can be
+ overwritten by restore"
+\item If an entire Storage Group is to be restored (eg all databases and
+ logs in the Storage Group), then it is best to manually delete the
+ database files from the server (eg C:\verb+\+Program Files\verb+\+Exchsrvr\verb+\+mdbdata\verb+\+*)
+ as Exchange can get confused by stray log files lying around.
+\end{itemize}
+
+\subsection{Restoring to the Recovery Storage Group}
+The concept of the Recovery Storage Group is well documented by
+Microsoft
+\elink{http://support.microsoft.com/kb/824126}{http://support.microsoft.com/kb/824126},
+but to briefly summarize...
+
+Microsoft Exchange allows the creation of an additional Storage Group
+called the Recovery Storage Group, which is used to restore an older
+copy of a database (e.g. before a mailbox was deleted) into without
+messing with the current live data. This is required as the Standard and
+Small Business Server versions of Exchange can not ordinarily have more
+than one Storage Group.
+
+To create the Recovery Storage Group, drill down to the Server in Exchange
+System Manager, right click, and select
+{\bf "New -> Recovery Storage Group..."}. Accept or change the file
+locations and click OK. On the Recovery Storage Group, right click and
+select {\bf "Add Database to Recover..."} and select the database you will
+be restoring.
+
+Restore only the single database nominated as the database in the
+Recovery Storage Group. Exchange will redirect the restore to the
+Recovery Storage Group automatically.
+Then run the restore.
+
+\subsection{Restoring on Microsoft Server 2007}
+Apparently the {\bf Exmerge} program no longer exists in Microsoft Server
+2007, and henc you use a new proceedure for recovering a single mail box.
+This procedure is ducomented by Microsoft at:
+\elink{http://technet.microsoft.com/en-us/library/aa997694.aspx}{http://technet.microsoft.com/en-us/library/aa997694.aspx},
+and involves using the {\bf Restore-Mailbox} and {\bf
+Get-MailboxStatistics} shell commands.
+
+\subsection{Caveats}
+This plugin is still being developed, so you should consider it
+currently in BETA test, and thus use in a production environment
+should be done only after very careful testing.
+
+When doing a full backup, the Exchange database logs are truncated by
+Exchange as soon as the plugin has completed the backup. If the data
+never makes it to the backup medium (eg because of spooling) then the
+logs will still be truncated, but they will also not have been backed
+up. A solution to this is being worked on. You will have to schedule a
+new Full backup to ensure that your next backups will be usable.
+
+The "Enable Circular Logging" option cannot be enabled or the plugin
+will fail.
+
+Exchange insists that a successful Full backup must have taken place if
+an Incremental or Differential backup is desired, and the plugin will
+fail if this is not the case. If a restore is done, Exchange will
+require that a Full backup be done before an Incremental or Differential
+backup is done.
+
+The plugin will most likely not work well if another backup application
+(eg NTBACKUP) is backing up the Exchange database, especially if the
+other backup application is truncating the log files.
+
+The Exchange plugin has not been tested with the {\bf Accurate} option, so
+we recommend either carefully testing or that you avoid this option for
+the current time.
+
+The Exchange plugin is not called during processing the bconsole {\bf
+estimate} command, and so anything that would be backed up by the plugin
+will not be added to the estimate total that is displayed.
+
+
+\section{libdbi Framework}
+\index[general]{libdbi Framework}
+As a general guideline, Bacula has support for a few catalog database drivers
+(MySQL, PostgreSQL, SQLite)
+coded natively by the Bacula team. With the libdbi implementation, which is a
+Bacula driver that uses libdbi to access the catalog, we have an open field to
+use many different kinds database engines following the needs of users.
+
+The according to libdbi (http://libdbi.sourceforge.net/) project: libdbi
+implements a database-independent abstraction layer in C, similar to the
+DBI/DBD layer in Perl. Writing one generic set of code, programmers can
+leverage the power of multiple databases and multiple simultaneous database
+connections by using this framework.
+
+Currently the libdbi driver in Bacula project only supports the same drivers
+natively coded in Bacula. However the libdbi project has support for many
+others database engines. You can view the list at
+http://libdbi-drivers.sourceforge.net/. In the future all those drivers can be
+supported by Bacula, however, they must be tested properly by the Bacula team.
+
+Some of benefits of using libdbi are:
+\begin{itemize}
+\item The possibility to use proprietary databases engines in which your
+ proprietary licenses prevent the Bacula team from developing the driver.
+ \item The possibility to use the drivers written for the libdbi project.
+ \item The possibility to use other database engines without recompiling Bacula
+ to use them. Just change one line in bacula-dir.conf
+ \item Abstract Database access, this is, unique point to code and profiling
+ catalog database access.
+ \end{itemize}
+
+ The following drivers have been tested:
+ \begin{itemize}
+ \item PostgreSQL, with and without batch insert
+ \item Mysql, with and without batch insert
+ \item SQLite
+ \item SQLite3
+ \end{itemize}
+
+ In the future, we will test and approve to use others databases engines
+ (proprietary or not) like DB2, Oracle, Microsoft SQL.
+
+ To compile Bacula to support libdbi we need to configure the code with the
+ --with-dbi and --with-dbi-driver=[database] ./configure options, where
+ [database] is the database engine to be used with Bacula (of course we can
+ change the driver in file bacula-dir.conf, see below). We must configure the
+ access port of the database engine with the option --with-db-port, because the
+ libdbi framework doesn't know the default access port of each database.
+
+The next phase is checking (or configuring) the bacula-dir.conf, example:
+\begin{verbatim}
+Catalog {
+ Name = MyCatalog
+ dbdriver = dbi:mysql; dbaddress = 127.0.0.1; dbport = 3306
+ dbname = regress; user = regress; password = ""
+}
+\end{verbatim}
+
+The parameter {\bf dbdriver} indicates that we will use the driver dbi with a
+mysql database. Currently the drivers supported by Bacula are: postgresql,
+mysql, sqlite, sqlite3; these are the names that may be added to string "dbi:".
+
+The following limitations apply when Bacula is set to use the libdbi framework:
+ - Not tested on the Win32 platform
+ - A little performance is lost if comparing with native database driver.
+ The reason is bound with the database driver provided by libdbi and the
+ simple fact that one more layer of code was added.
+
+It is important to remember, when compiling Bacula with libdbi, the
+following packages are needed:
+ \begin{itemize}
+ \item libdbi version 1.0.0, http://libdbi.sourceforge.net/
+ \item libdbi-drivers 1.0.0, http://libdbi-drivers.sourceforge.net/
+ \end{itemize}
+
+ You can download them and compile them on your system or install the packages
+ from your OS distribution.
+
+\section{Console Command Additions and Enhancements}
+\index[general]{Console Additions}
+
+\subsection{Display Autochanger Content}
+\index[general]{StatusSlots}
+
+The {\bf status slots storage=\lt{}storage-name\gt{}} command displays
+autochanger content.
+
+\footnotesize
+\begin{verbatim}
+ Slot | Volume Name | Status | Media Type | Pool |
+------+---------------+----------+-------------------+------------|
+ 1 | 00001 | Append | DiskChangerMedia | Default |
+ 2 | 00002 | Append | DiskChangerMedia | Default |
+ 3*| 00003 | Append | DiskChangerMedia | Scratch |
+ 4 | | | | |
+\end{verbatim}
+\normalsize
+
+If you an asterisk ({\bf *}) appears after the slot number, you must run an
+{\bf update slots} command to synchronize autochanger content with your
+catalog.
+\subsection{list joblog job=xxx or jobid=nnn}
+\index[general]{list joblog}
+A new list command has been added that allows you to list the contents
+of the Job Log stored in the catalog for either a Job Name (fully qualified)
+or for a particular JobId. The {\bf llist} command will include a line with
+the time and date of the entry.
+
+Note for the catalog to have Job Log entries, you must have a directive
+such as:
+
+\begin{verbatim}
+ catalog = all
+\end{verbatim}
+
+In your Director's {\bf Messages} resource.
+
+\subsection{Use separator for multiple commands}
+\index[general]{Command Separator}
+ When using bconsole with readline, you can set the command separator with
+ \textbf{@separator} command to one
+ of those characters to write commands who require multiple input in one line.
+\begin{verbatim}
+ !$%&'()*+,-/:;<>?[]^`{|}~
+\end{verbatim}
+
+\section{Bare Metal Recovery}
+The old bare metal recovery project is essentially dead. One
+of the main features of it was that it would build a recovery
+CD based on the kernel on your system. The problem was that
+every distribution has a different boot procedure and different
+scripts, and worse yet, the boot procedures and scripts change
+from one distribution to another. This meant that maintaining
+(keeping up with the changes) the rescue CD was too much work.
+
+To replace it, a new bare metal recovery USB boot stick has been developed
+by Bacula Systems. This technology involves remastering a Ubuntu LiveCD to
+boot from a USB key.
+
+Advantages:
+\begin{enumerate}
+\item Recovery can be done from within graphical environment.
+\item Recovery can be done in a shell.
+\item Ubuntu boots on a large number of Linux systems.
+\item The process of updating the system and adding new
+ packages is not too difficult.
+\item The USB key can easily be upgraded to newer Ubuntu versions.
+\item The USB key has writable partitions for modifications to
+ the OS and for modification to your home directory.
+\item You can add new files/directories to the USB key very easily.
+\item You can save the environment from multiple machines on
+ one USB key.
+\item Bacula Systems is funding its ongoing development.
+\end{enumerate}
+
+The disadvantages are:
+\begin{enumerate}
+\item The USB key is usable but currently under development.
+\item Not everyone may be familiar with Ubuntu (no worse
+ than using Knoppix)
+\item Some older OSes cannot be booted from USB. This can
+ be resolved by first booting a Ubuntu LiveCD then plugging
+ in the USB key.
+\item Currently the documentation is sketchy and not yet added
+ to the main manual. See below ...
+\end{enumerate}
+
+The documentation and the code can be found in the {\bf rescue} package
+in the directory {\bf linux/usb}.
+
+\section{Miscellaneous}
+\index[general]{Misc New Features}
+
+\subsection{Allow Mixed Priority = \lt{}yes|no\gt{}}
+\index[general]{Allow Mixed Priority}
+ This directive is only implemented in version 2.5 and later. When
+ set to {\bf yes} (default {\bf no}), this job may run even if lower
+ priority jobs are already running. This means a high priority job
+ will not have to wait for other jobs to finish before starting.
+ The scheduler will only mix priorities when all running jobs have
+ this set to true.
+
+ Note that only higher priority jobs will start early. Suppose the
+ director will allow two concurrent jobs, and that two jobs with
+ priority 10 are running, with two more in the queue. If a job with
+ priority 5 is added to the queue, it will be run as soon as one of
+ the running jobs finishes. However, new priority 10 jobs will not
+ be run until the priority 5 job has finished.
+
+\subsection{Bootstrap File Directive -- FileRegex}
+\index[general]{Bootstrap File Directive}
+ {\bf FileRegex} is a new command that can be added to the bootstrap
+ (.bsr) file. The value is a regular expression. When specified, only
+ matching filenames will be restored.
+
+ During a restore, if all File records are pruned from the catalog
+ for a Job, normally Bacula can restore only all files saved. That
+ is there is no way using the catalog to select individual files.
+ With this new feature, Bacula will ask if you want to specify a Regex
+ expression for extracting only a part of the full backup.
+
+\begin{verbatim}
+ Building directory tree for JobId(s) 1,3 ...
+ There were no files inserted into the tree, so file selection
+ is not possible.Most likely your retention policy pruned the files
+
+ Do you want to restore all the files? (yes|no): no
+
+ Regexp matching files to restore? (empty to abort): /tmp/regress/(bin|tests)/
+ Bootstrap records written to /tmp/regress/working/zog4-dir.restore.1.bsr
+\end{verbatim}
+
+\subsection{Bootstrap File Optimization Changes}
+In order to permit proper seeking on disk files, we have extended the bootstrap
+file format to include a {\bf VolStartAddr} and {\bf VolEndAddr} records. Each
+takes a 64 bit unsigned integer range (i.e. nnn-mmm) which defines the start
+address range and end address range respectively. These two directives replace
+the {\bf VolStartFile}, {\bf VolEndFile}, {\bf VolStartBlock} and {\bf
+ VolEndBlock} directives. Bootstrap files containing the old directives will
+still work, but will not properly take advantage of proper disk seeking, and
+may read completely to the end of a disk volume during a restore. With the new
+format (automatically generated by the new Director), restores will seek
+properly and stop reading the volume when all the files have been restored.
+
+\subsection{Solaris ZFS/NFSv4 ACLs}
+This is an upgrade of the previous Solaris ACL backup code
+to the new library format, which will backup both the old
+POSIX(UFS) ACLs as well as the ZFS ACLs.
+
+The new code can also restore POSIX(UFS) ACLs to a ZFS filesystem
+(it will translate the POSIX(UFS)) ACL into a ZFS/NFSv4 one) it can also
+be used to transfer from UFS to ZFS filesystems.
+
+
+\subsection{Virtual Tape Emulation}
+\index[general]{Virtual Tape Emulation}
+We now have a Virtual Tape emulator that allows us to run though 99.9\% of
+the tape code but actually reading and writing to a disk file. Used with the
+\textbf{disk-changer} script, you can now emulate an autochanger with 10 drives
+and 700 slots. This feature is most useful in testing. It is enabled
+by using {\bf Device Type = vtape} in the Storage daemon's Device
+directive. This feature is only implemented on Linux machines and should not be
+used for production.
+
+\subsection{Bat Enhancements}
+\index[general]{Bat Enhancements}
+Bat (the Bacula Administration Tool) GUI program has been significantly
+enhanced and stabilized. In particular, there are new table based status
+commands; it can now be easily localized using Qt4 Linguist.
+
+The Bat communications protocol has been significantly enhanced to improve
+GUI handling. Note, you {\bf must} use a the bat that is distributed with
+the Director you are using otherwise the communications protocol will not
+work.
+
+\subsection{RunScript Enhancements}
+\index[general]{RunScript Enhancements}
+The {\bf RunScript} resource has been enhanced to permit multiple
+commands per RunScript. Simply specify multiple {\bf Command} directives
+in your RunScript.
+
+\begin{verbatim}
+Job {
+ Name = aJob
+ RunScript {
+ Command = "/bin/echo test"
+ Command = "/bin/echo an other test"
+ Command = "/bin/echo 3 commands in the same runscript"
+ RunsWhen = Before
+ }
+ ...
+}
+\end{verbatim}
+
+A new Client RunScript {\bf RunsWhen} keyword of {\bf AfterVSS} has been
+implemented, which runs the command after the Volume Shadow Copy has been made.
+
+Console commands can be specified within a RunScript by using:
+{\bf Console = \lt{}command\gt{}}, however, this command has not been
+carefully tested and debugged and is known to easily crash the Director.
+We would appreciate feedback. Due to the recursive nature of this command, we
+may remove it before the final release.
+
+\subsection{Status Enhancements}
+\index[general]{Status Enhancements}
+The bconsole {\bf status dir} output has been enhanced to indicate
+Storage daemon job spooling and despooling activity.
+
+\subsection{Connect Timeout}
+\index[general]{Connect Timeout}
+The default connect timeout to the File
+daemon has been set to 3 minutes. Previously it was 30 minutes.
+
+\subsection{ftruncate for NFS Volumes}
+\index[general]{ftruncate for NFS Volumes}
+If you write to a Volume mounted by NFS (say on a local file server),
+in previous Bacula versions, when the Volume was recycled, it was not
+properly truncated because NFS does not implement ftruncate (file
+truncate). This is now corrected in the new version because we have
+written code (actually a kind user) that deletes and recreates the Volume,
+thus accomplishing the same thing as a truncate.
+
+\subsection{Support for Ubuntu}
+The new version of Bacula now recognizes the Ubuntu (and Kubuntu)
+version of Linux, and thus now provides correct autostart routines.
+Since Ubuntu officially supports Bacula, you can also obtain any
+recent release of Bacula from the Ubuntu repositories.
+
+\subsection{Recycle Pool = \lt{}pool-name\gt{}}
+\index[general]{Recycle Pool}
+The new \textbf{RecyclePool} directive defines to which pool the Volume will
+be placed (moved) when it is recycled. Without this directive, a Volume will
+remain in the same pool when it is recycled. With this directive, it can be
+moved automatically to any existing pool during a recycle. This directive is
+probably most useful when defined in the Scratch pool, so that volumes will
+be recycled back into the Scratch pool.
+
+\subsection{FD Version}
+\index[general]{FD Version}
+The File daemon to Director protocol now includes a version
+number, which although there is no visible change for users,
+will help us in future versions automatically determine
+if a File daemon is not compatible.
+
+\subsection{Max Run Sched Time = \lt{}time-period-in-seconds\gt{}}
+\index[general]{Max Run Sched Time}
+The time specifies the maximum allowed time that a job may run, counted from
+when the job was scheduled. This can be useful to prevent jobs from running
+during working hours. We can see it like \texttt{Max Start Delay + Max Run
+ Time}.
+
+\subsection{Max Wait Time = \lt{}time-period-in-seconds\gt{}}
+\index[general]{Max Wait Time}
+Previous \textbf{MaxWaitTime} directives aren't working as expected, instead
+of checking the maximum allowed time that a job may block for a resource,
+those directives worked like \textbf{MaxRunTime}. Some users are reporting to
+use \textbf{Incr/Diff/Full Max Wait Time} to control the maximum run time of
+their job depending on the level. Now, they have to use
+\textbf{Incr/Diff/Full Max Run Time}. \textbf{Incr/Diff/Full Max Wait Time}
+directives are now deprecated.
+
+\subsection{Incremental|Differential Max Wait Time = \lt{}time-period-in-seconds\gt{}}
+\index[general]{Incremental Max Wait Time}
+\index[general]{Differential Max Wait Time}
+
+These directives have been deprecated in favor of
+\texttt{Incremental|Differential Max Run Time}.
+
+\subsection{Max Run Time directives}
+\index[general]{Max Run Time directives}
+Using \textbf{Full/Diff/Incr Max Run Time}, it's now possible to specify the
+maximum allowed time that a job can run depending on the level.
+
+\addcontentsline{lof}{figure}{Job time control directives}
+\includegraphics{\idir different_time.eps}
+
+\subsection{Statistics Enhancements}
+\index[general]{Statistics Enhancements}
+If you (or probably your boss) want to have statistics on your backups to
+provide some \textit{Service Level Agreement} indicators, you could use a few
+SQL queries on the Job table to report how many:
+
+\begin{itemize}
+\item jobs have run
+\item jobs have been successful
+\item files have been backed up
+\item ...
+\end{itemize}
+
+However, these statistics are accurate only if your job retention is greater
+than your statistics period. Ie, if jobs are purged from the catalog, you won't
+be able to use them.
+
+Now, you can use the \textbf{update stats [days=num]} console command to fill
+the JobHistory table with new Job records. If you want to be sure to take in
+account only \textbf{good jobs}, ie if one of your important job has failed but
+you have fixed the problem and restarted it on time, you probably want to
+delete the first \textit{bad} job record and keep only the successful one. For
+that simply let your staff do the job, and update JobHistory table after two or
+three days depending on your organization using the \textbf{[days=num]} option.
+
+These statistics records aren't used for restoring, but mainly for
+capacity planning, billings, etc.
+
+The Bweb interface provides a statistics module that can use this feature. You
+can also use tools like Talend or extract information by yourself.
+
+The \textbf{Statistics Retention = \lt{}time\gt{}} director directive defines
+the length of time that Bacula will keep statistics job records in the Catalog
+database after the Job End time. (In \texttt{JobHistory} table) When this time
+period expires, and if user runs \texttt{prune stats} command, Bacula will
+prune (remove) Job records that are older than the specified period.
+
+You can use the following Job resource in your nightly \textbf{BackupCatalog}
+job to maintain statistics.
+\begin{verbatim}
+Job {
+ Name = BackupCatalog
+ ...
+ RunScript {
+ Console = "update stats days=3"
+ Console = "prune stats yes"
+ RunsWhen = After
+ RunsOnClient = no
+ }
+}
+\end{verbatim}
+
+\subsection{ScratchPool = \lt{}pool-resource-name\gt{}}
+\index[general]{ScratchPool}
+This directive permits to specify a specific \textsl{Scratch} pool for the
+current pool. This is useful when using multiple storage sharing the same
+mediatype or when you want to dedicate volumes to a particular set of pool.
+
+\subsection{Enhanced Attribute Despooling}
+\index[general]{Attribute Despooling}
+If the storage daemon and the Director are on the same machine, the spool file
+that contains attributes is read directly by the Director instead of being
+transmitted across the network. That should reduce load and speedup insertion.
+
+\subsection{SpoolSize = \lt{}size-specification-in-bytes\gt{}}
+\index[general]{SpoolSize}
+A new Job directive permits to specify the spool size per job. This is used
+in advanced job tunning. {\bf SpoolSize={\it bytes}}
+
+\subsection{MaxConsoleConnections = \lt{}number\gt{}}
+\index[general]{MaxConsoleConnections}
+A new director directive permits to specify the maximum number of Console
+Connections that could run concurrently. The default is set to 20, but you may
+set it to a larger number.
+
+\subsection{VerId = \lt{}string\gt{}}
+\index[general]{VerId}
+A new director directive permits to specify a personnal identifier that will be
+displayed in the \texttt{version} command.
+
+\subsection{dbcheck enhancements}
+\index[general]{dbcheck enhancements}
+If you are using Mysql, dbcheck will now ask you if you want to create
+temporary indexes to speed up orphaned Path and Filename elimination.
+
+A new \texttt{-B} option allows you to print catalog information in a simple
+text based format. This is useful to backup it in a secure way.
+
+\begin{verbatim}
+ $ dbcheck -B
+ catalog=MyCatalog
+ db_type=SQLite
+ db_name=regress
+ db_driver=
+ db_user=regress
+ db_password=
+ db_address=
+ db_port=0
+ db_socket=
+\end{verbatim} %$
+You can now specify the database connection port in the command line.
+\subsection{{-}{-}docdir configure option}
+\index[general]{{-}{-}docdir configure option}
+You can use {-}{-}docdir= on the ./configure command to
+specify the directory where you want Bacula to install the
+LICENSE, ReleaseNotes, ChangeLog, ... files. The default is
+{\bf /usr/share/doc/bacula}.
+
+\subsection{{-}{-}htmldir configure option}
+\index[general]{{-}{-}htmldir configure option}
+You can use {-}{-}htmldir= on the ./configure command to
+specify the directory where you want Bacula to install the bat html help
+files. The default is {\bf /usr/share/doc/bacula/html}
+\subsection{{-}{-}with-plugindir configure option}
+\index[general]{{-}{-}plugindir configure option}
+You can use {-}{-}plugindir= on the ./configure command to
+specify the directory where you want Bacula to install
+the plugins (currently only bpipe-fd). The default is
+/usr/lib.
projects / bacula / docs / blobdiff