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<h2><b><font face="ARIAL NARROW,HELVETICA">
SGI XFS Pre-Release 0.9
</font></b></h2>

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<p>
SGI has made available pre-release version 0.9 of its high-end XFS file
system ported to Linux®. As a leading supporter of Linux and the open source
movement, SGI is providing business-critical infrastructure for Linux
through porting solid and high-performance software such as XFS to Linux and
making it available to the community.
</p>

<p>
Existing file systems for Linux entail significant limitations in
scalability and stability. Unlike other journaled file systems currently
under development, XFS is a mature technology that has been proven on
thousands of IRIX systems for over six years. It is widely recognized as the
industry's leading high-performance file system. SGI has now optimized XFS
for Linux users, providing the same flexible, high-capacity, and reliable
file system that is available under IRIX.  Features
such as instantaneous recovery from disk
crashes and the ability to support extremely large disk farms will establish
XFS as the production quality file system for Linux. Furthermore, porting
XFS to Linux is helping advance some of the Linux kernel infrastructure such
as the VM subsystem and the block device interface.
</p>

<p>
Thanks to the extensive interest and contributions from the community,
the XFS
filesystem for Linux has made significant progress since its Beta release
in September 2000. Although there are still some features to be finalized,
the Beta code is currently stable in a majority of normal environments. We
welcome and encourage interested users to try out the code
aggressively in your test environments so that we can work through the final
stage of the development and bug fixes to meet your production needs.
</p>

<p>
For links to articles on XFS and journaled filesystems, see 
<a href="in_news.html">XFS in the News</a>.
</p>


<h2><font face="ARIAL NARROW,HELVETICA">
XFS Availability and Release Caveats
</font></h2>
<p>

SGI XFS Pre-release 0.9 is available as a
<a href="pr_source.html">patch</A>
against linux-2.4.0.
It is also available as a set of
<a href="pr_rpm.html"> RPMs</a>
and as a
<a href="pr_installer.html">Modified Red Hat® 7.0 Installer</a>
which works with existing Red Hat 7.0 installation media to install a
Red Hat 7.0 system with XFS on root, or any other partition, right out
of the box.

</p>

<p>
Before installing the XFS filesystem for Linux,
you should look over the <a href="pr_caveats.html">XFS for Linux Pre-release 0.9 Caveats</A> 
for a list of limitations, requirements, and special instructions
for this release.
</p>

<h2><font face="ARIAL NARROW,HELVETICA">
Installation Notes and Instructions
</font></h2>

Because this pre-release requires a 2.4 kernel, it may require some
updates to your system if you are currently running the 2.2.x series
kernels.  Please see the latest
<a href="http://cyberbuzz.gatech.edu/kaboom/linux/Changes-2.4/changes24.html">
Linux 2.4 Changes</a> document for details on the minimum levels of software
necessary to install and run a Linux 2.4 kernel.

<p>
Step by step instructions are provided for the following installations:
<ul>
<li><a href="pr_source.html">Source</a> installation</li>
<li><a href="pr_rpm.html">Red Hat RPM</A> installation</li>
<li><a href="pr_installer.html">SGI XFS for Red Hat 7.0 Installer</a> installation</li>
</ul>
</p>

<p>
Before you use the SGI XFS for Red Hat 7.0 Installer,
you must look over the 
<a href="installcavs.html">SGI XFS Filesystem 0.9 Pre-Release
for Red Hat 7.0 Installer Caveats</A>.
</p>

<h2><font face="ARIAL NARROW,HELVETICA">
Working with XFS filesystems
</font></h2>

Information on XFS filesystems is available
in the <a href="faq.html">XFS FAQ</a> and the 
<a href="manpages.html">XFS man pages</a>.  The
following pages provide additional information:
<ul>
<li>For general administration instructions, see
<a href="beta_filesystem_install.html">Working with XFS Filesystems</a></li>.
<li>For information on using the <tt>kio</tt> and <tt>kiocluster</tt>
options of the <tt>mount</tt> command, see 
<a href="mount_kio.html">XFS Mount Options: kio and kiocluster</a>.
</li>
<li>
For information on using the Data Management API (DMAPI)
within the XFS filesystem, see
<a href="dmapi.html">The Data Management API</a>.
</li>
</ul>

<h2><font face="ARIAL NARROW,HELVETICA">
Questions and Problems
</font></h2>
If you have any questions or problems with the installation or
administration of the beta release of XFS for Linux, you can
send email to </i><a href="mailto:linux-xfs@oss.sgi.com">linux-xfs@oss.sgi.com</a>.

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