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<h1><b><font face="ARIAL NARROW,HELVETICA">
XFS: A high-performance journaling file system
</font></b></h1>

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<p>
On May 1 2001, SGI announced the 1.0 release of its high-end XFS<sup>tm</sup>
journaled filesystem for Linux®.
As a leading supporter of Linux and the open source
movement, SGI is providing a
reliable, resilient, scalable, high-performance
filesystem for business-critical Linux infrastructure.
</p>

<p>
More information is available on the <a href="1.0_release.html">
SGI XFS Linux Release 1.0</a> page.
For information on the software changes that have been made
since Pre-Release 0.10,
see the <a href="1.0_changes.html">
XFS for Linux Release 1.0 New Features</a> page.
</p>

<p>
XFS, widely recognized as the industry-leading high-performance
filesystem, provides rapid recovery from system crashes
and the ability to support extremely large disk farms. XFS is
the first journaled filesystem for Linux
available today that has
a proven track record in production environments
since December, 1994.
It is a mature technology that
has been proven on thousands of
IRIX systems as the default filesystem for all SGI customers.
</p>

<p>
XFS Linux 1.0 is released for the Linux 2.4 kernel and offers the following
unique advantages:
<ul>

<li>
Extensive features not generally available in other Linux
filesystems:
<p>
<ul>
<li>
Fast recovery time after a system crash or power failure (fsck not needed)
</li>
<li>
Journalling for guaranteed filesystem integrity
</li>
<li>
Direct I/O
</li>
<li>
Space preallocation
</li>
<li>
Transactionally recorded quotas
</li>
<li>
Access control lists and Extended attributes
</li>
<li>
Infrastructure for XDSM support
</li>
<li>
Excellent overall performance
</li>
<li>
Excellent scalability (64 bit filesystem)
</li>
</ul>
</li>

<p>
<li>
A complete toolset including:
<p>
<ul>
<li>
dump/restore support including all XFS filesystem features such as
ACLs and quotas
</li>
<li>
Repair utility, filesystem editor, and growing the filesystem
</li>
<li>
Modified Red Hat installer to allow system installation on XFS
</li>
<li>
ACL editing utility
</li>
</ul>


<p>
<li>
Excellent integration with other Linux subsystems:
<p>
<ul>
<li>
NFS server support
</li>
<li>
Root filesystem and lilo support
</li>
<li>
Software raid integration with md and lvm packages
</li>
<li>
Mount by label and mount by uuid
</li>
</ul>
</li>

<p>
<li>
Maintains on-disk compatibility with XFS filesystems created under
IRIX
</li>
</ul>

<p>
XFS is licensed under GPL.
</p>

<p>
For a more extensive listing of the capabilities and specifications
of XFS, see 
<a href="features.html">
XFS for Linux Features</a>.


<h2><b><font face="ARIAL NARROW,HELVETICA">
Source Code:</font></b></h2>
A complete linux 2.4.x-based tree including the XFS filesystem is available
for CVS checkout.
<p>Two distinct trees are available: 
<p>
<ul>
<li>linux-2.4-xfs: fast moving development tree </li>
<li>linux-2.4-xfs-r1.0: XFS Linux Release 1.0</li>
</ul>
</p>

<p>Please refer to the&nbsp; <a href="cvs_download.html">CVS instructions</a>&nbsp;
for&nbsp; details.  Alternately, you can use
&nbsp;<a href="cvsup.html">CVSup</a>.
There is also a <A HREF="http://oss.sgi.com/cgi-bin/cvsweb.cgi/linux-2.4-xfs/">web interface</a>
to CVS.

<h2><b><font face="ARIAL NARROW,HELVETICA">
Man Pages:</font></b></h2>
XFS man pages are available in <A HREF="manpages.html"> html</a>.

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