\footnotesize
\begin{verbatim}
Include {
+ Options { compression=GZIP }
File = /
File = /usr
- Options { compression=GZIP }
}
\end{verbatim}
\normalsize
You can overwrite this option per Storage resource with
\ilink{AllowCompression}{AllowCompression} option.
+\item [compression=LZO]
+\index[dir]{compression}
+\index[dir]{Directive!compression}
+ All files saved will be software compressed using the LZO
+ compression format. The compression is done on a file by file basis by
+ the File daemon. Everything else about GZIP is true for LZO.
+
+ LZO provides much faster compression and decompression speed but lower
+ compression ratio than GZIP. If your CPU is fast enough you should be able
+ to compress your data without making the backup duration longer.
+
+ Note that bacula only use one compression level LZO1X-1 specified by LZO.
+
+ You can overwrite this option per Storage resource with
+ \ilink{AllowCompression}{AllowCompression} option.
+
\item [signature=SHA1]
\index[dir]{signature}
\index[dir]{SHA1}
with BaseJobs. The options letters are the same than in the \textbf{verify=}
option below.
-\item[accurate=\lt{}options\gt{}]
-\index[dir]{accurate}
-\index[dir]{Directive!accurate}
- The options letters specified are used when running a {\bf Backup
- Level=Incremental/Differential} in Accurate mode. The options
- letters are the same than in the \textbf{verify=} option below.
+\item[accurate=\lt{}options\gt{}] \index[dir]{accurate}
+ \index[dir]{Directive!accurate} The options letters specified are used when
+ running a {\bf Backup Level=Incremental/Differential} in Accurate mode. The
+ options letters are the same than in the \textbf{verify=} option below.
\item [verify=\lt{}options\gt{}]
\index[dir]{verify}
\item {\bf 1}
compare the SHA1 signature
+
+ \item {\bf A}
+ Only for Accurate option, it allows to always backup the file
+
\end{description}
A useful set of general options on the {\bf Level=Catalog} or {\bf
ndbm. The default is {\bf no}, so no checks are made for sparse files.
You may specify {\bf sparse=yes} even on files that are not sparse file.
No harm will be done, but there will be a small additional overhead to
- check for buffers of all zero, and a small additional amount of space on
- the output archive will be used to save the seek address of each
- non-zero record read.
+ check for buffers of all zero, and if there is a 32K block of all zeros
+ (see below), that block will become a hole in the file, which
+ may not be desirable if the original file was not a sparse file.
{\bf Restrictions:} Bacula reads files in 32K buffers. If the whole
buffer is zero, it will be treated as a sparse block and not written to
benchmark the difference or set sparse for only those files that are
really sparse.
+ You probably should not use this option on files or raw disk devices
+ that are not really sparse files (i.e. have holes in them).
+
\label{readfifo}
\item [readfifo=yes\vb{}no]
\index[dir]{readfifo}
\index[dir]{aclsupport}
\index[dir]{Directive!aclsupport}
The default is {\bf no}. If this option is set to yes, and you have the
- POSIX {\bf libacl} installed on your system, Bacula will backup the file
- and directory UNIX Access Control Lists (ACL) as defined in IEEE Std
+ POSIX {\bf libacl} installed on your Linux system, Bacula will backup the
+ file and directory Unix Access Control Lists (ACL) as defined in IEEE Std
1003.1e draft 17 and "POSIX.1e" (abandoned). This feature is
- available on UNIX only and depends on the ACL library. Bacula is
+ available on Unix systems only and requires the Linux ACL library. Bacula is
automatically compiled with ACL support if the {\bf libacl} library is
- installed on your system (shown in config.out). While restoring the
+ installed on your Linux system (shown in config.out). While restoring the
files Bacula will try to restore the ACLs, if there is no ACL support
available on the system, Bacula restores the files and directories but
not the ACL information. Please note, if you backup an EXT3 or XFS
filesystem with ACLs, then you restore them to a different filesystem
(perhaps reiserfs) that does not have ACLs, the ACLs will be ignored.
+ For other operating systems there is support for either POSIX ACLs or
+ the more extensible NFSv4 ACLs.
+
+ The ACL stream format between Operation Systems is \textbf{not}
+ compatible so for example an ACL saved on Linux cannot be restored on
+ Solaris.
+
+ The following Operating Systems are currently supported:
+
+ \begin{enumerate}
+ \item AIX (pre-5.3 (POSIX) and post 5.3 (POSIX and NFSv4) ACLs)
+ \item Darwin
+ \item FreeBSD (POSIX and NFSv4/ZFS ACLs)
+ \item HPUX
+ \item IRIX
+ \item Linux
+ \item Solaris (POSIX and NFSv4/ZFS ACLs)
+ \item Tru64
+ \end{enumerate}
+
+\label{XattrSupport}
+\item [xattrsupport=yes\vb{}no]
+\index[dir]{xattrsupport}
+\index[dir]{Directive!xattrsupport}
+ The default is {\bf no}. If this option is set to yes, and your
+ operating system support either so called Extended Attributes or
+ Extensible Attributes Bacula will backup the file and directory
+ XATTR data. This feature is available on UNIX only and depends on
+ support of some specific library calls in libc.
+
+ The XATTR stream format between Operating Systems is {\bf not}
+ compatible so an XATTR saved on Linux cannot for example be restored
+ on Solaris.
+
+ On some operating systems ACLs are also stored as Extended Attributes
+ (Linux, Darwin, FreeBSD) Bacula checks if you have the aclsupport
+ option enabled and if so will not save the same info when saving
+ extended attribute information. Thus ACLs are only saved once.
+
+ The following Operating Systems are currently supported:
+
+ \begin{enumerate}
+ \item AIX (Extended Attributes)
+ \item Darwin (Extended Attributes)
+ \item FreeBSD (Extended Attributes)
+ \item IRIX (Extended Attributes)
+ \item Linux (Extended Attributes)
+ \item NetBSD (Extended Attributes)
+ \item Solaris (Extended Attributes and Extensible Attributes)
+ \item Tru64 (Extended Attributes)
+ \end{enumerate}
+
\item [ignore case=yes\vb{}no]
\index[dir]{ignore case}
\index[dir]{Directive!ignore case}
filesystem type. The permitted filesystem-type names are:
ext2, jfs, ntfs, proc, reiserfs, xfs, usbdevfs, sysfs, smbfs,
- iso9660. For ext3 systems, use ext2.
+ iso9660.
You may have multiple Fstype directives, and thus permit matching
of multiple filesystem types within a single Options resource. If
File = /usr/lib/another_file
}
Exclude {
- File = /tmp
+ File = /tmp # don't add trailing /
}
}
\end{verbatim}
You may also include full filenames or directory names in addition to using
wild-cards and {\bf Exclude=yes} in the Options resource as specified above by
simply including the files to be excluded in an Exclude resource within the
-FileSet. For example:
+FileSet. It accepts wild-cards pattern, so for a directory, don't add a trailing
+/. For example:
\footnotesize
\begin{verbatim}
}
Exclude {
File = /proc
- File = /tmp
+ File = /tmp # Don't add trailing /
File = .journal
File = .autofsck
}
projects / bacula / docs / blobdiff