XFS_User_Guide/en-US/XFS-dumprestore.xml

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<chapter id="xfs-dump-and-restore">
	<title>XFS Dump and Restore</title>
	<section>
		<title>Dump and Restore</title>
		<para>This section describes</para>
		<itemizedlist>
		<listitem><para>The differences between xfsdump, xfs_copy and other backup applications</para></listitem>
		<listitem><para>How to use xfsdump and xfsrestore to backup and restore an XFS filesystem</para></listitem>
		<listitem><para>How to use xfs_copy to copy an XFS filesystem</para></listitem>
		</itemizedlist>
	</section>
	<section>
		<title>Dump vs Copy vs Backup</title>
		<para>xfsdump understands all the extensions in an XFS filesystem, so all attributes will be backed up and restored</para>
		<para>xfs_copy TODO</para>
		<para>Traditional backup applications may not backup all attributes, but they provide other management features</para>
		<itemizedlist>
		<listitem><para>Some are still limited to 32bit inodes</para></listitem>
		</itemizedlist>
	</section>
	<section>
		<title>xfsdump - Features</title>
		<para>xfsdump and xfsrestore support the following:</para>
		<itemizedlist>
		<listitem><para>XFS features including 64-bit inode numbers, file lengths, and holes</para></listitem>
		<listitem><para>regular, directory, symbolic link, block and character special, FIFO, 
				and socket file types</para></listitem>
		<listitem><para>retain hard links.</para></listitem>
		<listitem><para>multiple media types (tape, files)</para></listitem>
		<listitem><para>do not affect the state of the filesystem being dumped (for example, 
				access times are retained).</para></listitem>
		<listitem><para>xfsrestore detects and bypasses media errors and recovers rapidly after 
				encountering them.</para></listitem>
		<listitem><para>xfsdump does not crossmount points, local or remote</para></listitem>
		<listitem><para>support for automated and incremental backups</para></listitem>
		</itemizedlist>
	</section>
	<section>
		<title>TODO</title>
		<para><programlisting>
xfsdump – Media Layout
xfsdump – Local Tape
xfsdump – Remote Tape
xfsdump – Backup to a File
xfsdump – Incremental Dumps
xfsdump – Resuming Dumps
xfsdump – Querying Dumps
xfsrestore – Local Tape
xfsrestore – Remote Tape
xfsrestore – Restore from File
xfsrestore - Interactive
xfsrestore – Cumulative

Do these still apply?

Linux xfsdump/xfsrestore does not support:
– multiple tape devices using multiple -f options
– IRIXdumpoption-z (prune large files)
– DMAPIrelatedoptionsof-a and -D
Linux xfsdump/xfsrestore does, however, have the added capabilities of
unrestricted use of the -b option for blocksize specification and remote
dumping/restoring between Linux and IRIX host

xfs_copy
TODO
</programlisting></para>
	</section>
</chapter>