<html>
<head>
<meta http-equiv="content-type" content="text/html;charset=iso-8859-1">
<meta name="generator" content="Adobe GoLive 4">
<title>Open Source - XFS</title>
<meta name="description" content="XFS Project page">
<meta name="keywords" content="XFS, Open Source, Linux, code, programming">
<script language="JavaScript" src="/js/nav-top_oss.js"></script>
</head>
<script language="JavaScript" src="/js/l3_images.js"></script>
<body marginheight="0" marginwidth="0" leftmargin="0" topmargin="0" bgcolor="white" text="black" alink="red" vlink="#666666" link="#420077">
<script language="Javascript"><!--
function change(Name,Image,No,Msg) {
if (!document.images) {}
else {
document [Name].src = eval(Image + No + ".src");
}
if (Msg) self.status = eval(Image + "2");
return true
}
// -->
</script>
<table border="0" cellpadding="0" cellspacing="0" width="620">
<!-- Start sgi.com Top Nav -->
<tr>
<td colspan="3"><a href="http://www.sgi.com/" onmouseover="change('hom','nav_hom',1)" onmouseout="change('hom','nav_hom',0)"><img src="/images/common/nav_home0.gif" alt="[Home] " width="48" height="25" border="0" name="hom"></a><a href="http://www.sgi.com/search/" onmouseover="change('src','nav_src',1)" onmouseout="change('src','nav_src',0)"><img src="/images/common/nav_search0.gif" alt="[Search] " width="54" height="25" border="0" name="src"></a><a href="http://www.sgi.com/sales/" onmouseover="change('sal','nav_sal',1)" onmouseout="change('sal','nav_sal',0)"><img src="/images/common/nav_sales0.gif" alt="[How to Buy] " width="79" height="25" border="0" name="sal"></a><a href="http://www.sgi.com/products/" onmouseover="change('prd','nav_prd',1)" onmouseout="change('prd','nav_prd',0)"><img src="/images/common/nav_prod0.gif" alt="[Products] " width="70" height="25" border="0" name="prd"></a><a href="http://www.sgi.com/solutions/" onmouseover="change('sol','nav_sol',1)" onmouseout="change('sol','nav_sol',0)"><img src="/images/common/nav_solutions0.gif" alt="[Solutions] " width="73" height="25" border="0" name="sol"></a><a href="http://www.sgi.com/developers/"><img src="/images/common/nav_dev1.gif" alt="[Developers] " width="81" height="25" border="0" name="dev"></a><a href="http://www.sgi.com/support/" onmouseover="change('srv','nav_srv',1)" onmouseout="change('srv','nav_srv',0)"><img src="/images/common/nav_support0.gif" alt="[Services and Support] " width="128" height="25" border="0" name="srv"></a><a href="http://www.sgi.com/fun/" onmouseover="change('fun','nav_fun',1)" onmouseout="change('fun','nav_fun',0)"><img src="/images/common/nav_fun0.gif" alt="[Serious Fun] " width="87" height="25" border="0" name="fun"></a></td>
</tr>
<tr>
<td colspan="3"><img src="/images/common/nav_dev_line.gif" width="620" height="7"></td>
</tr>
<!-- End sgi.com Top Nav -->
<tr>
<td valign="top" width="138"><a href="http://www.sgi.com/"><img src="/images/common/sgilogo.gif" alt="sgi" width="130" height="108" border="0"></a></td>
<td colspan="2" align="right"> <br>
<a href="http://www.sgi.com/developers/"><img src="/images/nav-devcentral.gif" width="203" height="55" alt="Developer Central" border="0"></a><br>
<a href="http://www.sgi.com/developers/devtools/index.html" onmouseover="if (good == 1) turnOn('image1')" onmouseout="if (good == 1) turnOff('image1')"><img name="image1" src="/images/nav-dev_off.gif" alt="Development Products" width="80" height="55" border="0"></a><a href="http://www.sgi.com/developers/program/index.html" onmouseover="if (good == 1) turnOn('image2')" onmouseout="if (good == 1) turnOff('image2')"><img name="image2" src="/images/nav-prog_off.gif" alt="Program & Benefits" width="75" height="55" border="0"></a><a href="http://www.sgi.com/developers/library/index.html" onmouseover="if (good == 1) turnOn('image3')" onmouseout="if (good == 1) turnOff('image3')"><img name="image3" src="/images/nav-lib_off.gif" alt="Library" width="72" height="55" border="0"></a><a href="http://www.sgi.com/developers/marketing/index.html" onmouseover="if (good == 1) turnOn('image4')" onmouseout="if (good == 1) turnOff('image4')"><img name="image4" src="/images/nav-mkt_off.gif" alt="Marketing Resources" width="72" height="55" border="0"></a><a href="http://www.sgi.com/developers/technology/index.html" onmouseover="if (good == 1) turnOn('image5')" onmouseout="if (good == 1) turnOff('image5')"><img name="image5" src="/images/nav-tech_off.gif" alt="Technology" width="73" height="55" border="0"></a><a href="http://www.sgi.com/developers/oss/index.html" onmouseover="if (good == 1) turnOn('image6')" onmouseout="if (good == 1) turnSel('image6')"><img name="image6" src="/images/nav-oss_sel.gif" alt="Open Source" width="75" height="55" border="0"></a><br>
<a href="http://www.sgi.com/developers/oss/index.html" onmouseover="if (good == 1) turnOn('image6')" onmouseout="if (good == 1) turnSel('image6')"><img src="/images/nav-title_oss.gif" width="118" height="25" alt="Open Source" border="0"></a></td>
</tr>
<tr>
<td width="138" valign="top"><!-- Start oss Project Sub Nav -->
<table border="0" width="138" cellspacing="0" cellpadding="0">
<tr>
<td><img src="/images/dot_clear.gif" width="5" height="2" alt="image"></td>
<td><img src="/images/dot_clear.gif" width="20" height="2" alt="image"></td>
<td><img src="/images/dot_clear.gif" width="116" height="2" alt="image"></td>
</tr>
<tr>
<td></td>
<td colspan="2"><img src="/images/bullets_dev2.gif" width="18" height="10"><a href="../../about/system.html"><font face="Geneva,Arial Narrow,Helvetica" size="2"><b>About this site</b></font></a><br>
<br>
</td>
</tr>
<tr>
<td></td>
<td colspan="2"><img src="/images/bullets_dev2.gif" width="18" height="10"><font face="Geneva,Arial Narrow,Helvetica" size="2"><b>XFS</b></font></td>
</tr>
<tr>
<td></td>
<td></td>
<td><font color="#207575" face="ARIAL,HELVETICA" size="2"><b>Overview</b></font><font face="ARIAL,HELVETICA" size="2"><br>
<A HREF="news.html"><FONT COLOR="red">News</A></FONT><BR>
<A HREF="faq.html">FAQ</A><BR>
<A HREF="mail.html">Mailing List</A><BR>
<A HREF="status.html">Port Status</A><BR>
<A HREF="contribute.html">How to Contribute</A><BR>
<A HREF="cvs_download.html">Source Tree</A><BR>
<A HREF="ftp://oss.sgi.com/www/projects/xfs/ftpdir/">Download</A><BR>
<A HREF="license.html">License</A><BR>
<A HREF="todos.html">Work Items</A><BR>
<A HREF="design_docs/">Design</A><BR>
<A HREF="papers/xfs_GPL.pdf">Data Sheet</A><BR>
<A HREF="papers/xfs_white/xfs_white_paper.html">1999 XFS white paper</A><BR>
<A HREF="papers/xfs_usenix/">Usenix paper</A><BR>
</font><br>
</td>
</tr>
<tr>
<td></td>
<td colspan="2"><img src="/images/bullets_dev2.gif" width="18" height="10"><font face="Geneva,Arial Narrow,Helvetica" size="2"><b>SGI Open Source</b></font></td>
</tr>
<tr>
<td></td>
<td></td>
<td><a href="../"><font face="ARIAL,HELVETICA" size="2">Project List</font></a><font face="ARIAL,HELVETICA" size="2"> </font><br>
</td>
</tr>
<tr>
<td></td>
<td colspan="2"><img src="/images/bullets_dev2.gif" width="18" height="10"><font face="Geneva,Arial Narrow,Helvetica" size="2"><b>SGI Resources</b></font></td>
</tr>
<tr>
<td></td>
<td></td>
<td><a href="http://www.sgi.com/developers/oss/sgi_resources/press.html"><font face="ARIAL,HELVETICA" size="2">Press Releases</font></a><font face="ARIAL,HELVETICA" size="2"><br>
<a href="http://www.sgi.com/developers/technology/linux/">SGI & Linux</a><br>
<a href="http://support.sgi.com/">Supportfolio</a><br>
<a href="http://www.sgi.com/services/">Customer<br>
Professional<br>
Services </a></font><br>
</td>
</tr>
<tr>
<td></td>
<td colspan="2"><img src="/images/bullets_dev2.gif" width="18" height="10"><font face="Geneva,Arial Narrow,Helvetica" size="2"><b>Community<br>
<img src="/images/dot_clear.gif" width="18" height="10">Resources</b></font></td>
</tr>
<tr>
<td></td>
<td></td>
<td><a href="http://www.sgi.com/developers/oss/resources/newsgroups.html"><font face="ARIAL,HELVETICA" size="2">Newsgroups &</font></a><font face="ARIAL,HELVETICA" size="2"><br>
<a href="http://www.sgi.com/developers/oss/resources/newsgroups.html">Mailing Lists</a><br>
<a href="http://www.sgi.com/developers/oss/resources/support.html">Support Links</a><br>
<a href="http://www.sgi.com/developers/oss/resources/sites.html">Open Source Sites</a> </font><br>
</td>
</tr>
</tr>
</table>
<!-- End oss Project Sub Nav -->
</td>
<td><img src="/images/dot_clear.gif" width="20" height="1"></td>
<td valign="top">
<h2><!-- Start Project Content -->
<font face="ARIAL NARROW,HELVETICA" size="5"><b>XFS: A high-performance<br>
journaling file system</b></font><i><br>
<font size="2">URL: http://oss.sgi.com/projects/xfs/</font></i></h2>
<p>Ever had to wait and wait while Linux `fsck's a big filesystem
after a crash, power failure or just routine verification ?</p>
<p>Ever wanted to support terabytes of databases, tens of thousands
of files per directory, 64-bit of everything in the filesystem,
with high reliability and high performance ?</p>
<p>Ever wondered how far a filesystem can scale assuming the rest
of the kernel can? How many CPUs can actually write to the filesystem
at the same time without interfering with each other?</p>
<center>
<p><img src="images/xfs_GPL.jpg" width="300" height="283"
align="BOTTOM" naturalsizeflag="3"></p>
</center>
<div align="left">
<p>
This site includes a preview of the
<font color="#cc6600"><b>Open Source</b></font>
<font color="#880055"><b>XFS<sup><font size="-2">TM</font></sup>
filesystem:</b></font>
an <font color="#cc6600">OSI Certified Open Source</font>
journaling file system soon to be available as free software for
<font color="#cc6600">Linux</font>, licensed with the
<font color="#cc6600">GNU General Public License (GPL)</font>.
<p></p>
</div>
<center>
<h2><font face="ARIAL NARROW,HELVETICA"><b>XFS Features:</b></font></h2>
</center>
<div align="left">
<ul>
<li>
<h4>Sub-second filesystem recovery after crashes or power failures
(never wait for long <code>fscks</code> again)</h4>
<li>
<h4>64-bit scalability:
millions of terabytes, millions of files, and a million
files per directory (no more 2 GB limits)</h4>
<li>
<h4>High reliability
and performance from journaling and other advanced algorithms</h4>
</ul>
</div>
<p>
At the Atlanta Linux Showcase, SGI presented the following paper on
the port of XFS to Linux:
<ul>
<li><a href="papers/als/als.ps"> Porting the SGI XFS File System to Linux
(October 1999)</a><br>
</ul>
<p>
At the 6th Linux Kongress & the Linux Storage Management Workshop (LSMW) in
Germany in September, 1999, SGI had a few presentations including the
following:
<ul>
<li><a href="papers/linux_kongress/index.htm"> SGI's port of XFS to Linux
(September 1999)</a><br>
<li><a href="papers/DMF-over/index.htm">Overview of DMF
(September 1999)</a><br>
</ul>
<p>
At the LinuxWorld Conference & Expo in August 1999, SGI published:</p>
<ul>
<li><a href="papers/xfs_GPL.pdf">An Open Source XFS data sheet
(August 1999)</a><br>
<li><a href="papers/IRIX_xfs_data_sheet.pdf">An IRIX-XFS
data sheet (July 1999)</a><br>
<li><a href="download/">Some initial XFS source code
copylefted with the GNU GPL license</a> (Selected IRIX XFS
routines that implement XFS journaling)
<li><a href="design_docs/">Selected original 1993 XFS
design documents</a>
<li><a href="papers/xfs_usenix/index.html">An XFS white paper
from the 1996 USENIX conference</a>.
</ul>
<p>
This initial publication of excerpts of XFS source code
indicates SGI's commitment to port XFS to Linux as GPL code.
This code can be freely used with Linux, without the worry
of violating the GPL terms by mixing copylefted GPL and
copyrighted non-GPL code in Linux. It also shows some interesting
code (originally developed for IRIX) which implements the XFS
journaling techniques.</p>
<p>
SGI programmers are cleaning the XFS code of legal encumbrances
and porting it to Linux. SGI is working with universities, European
and American companies, and Government laboratories which have
volunteered experienced Linux and filesystem programmers and other
resources to help SGI in this Open Source porting process.
The bazaar is opening for XFS and the Open Source process
is working to accelerate time to market while increasing
functionality and reliability.
<p>
Please bear with us as we finish these processes so we can
publish a full set of buildable and testable Open Source
Linux XFS source code.</p>
<p>You can also check out the following:</p>
<ul>
<li>The <a href="http://www.sgi.com/Technology/xfs-whitepaper.html">Original XFS white paper</a>, back from the early days it didn't yet have quota support. Yes, it has it now.
<li>Press release #1: <a href="http://www.sgi.com/newsroom/press_releases/1999/may/xfs.html">SGI Contributes World's Most Scalable File System Technology to Open Source Community</a>
<li>Some <a href="old/postings/">related discussions</a> on the kernel mailing list.
<li>A <a href="http://www.linuxworld.com/linuxworld/lw-1999-05/lw-05-sgi.html">Linux World article</a>
</ul>
<p><!-- End Project Content -->
<img src="/images/dot_clear.gif" width="400" height="1"></td>
</tr>
</table>
<center>
<p><!---- Virtual Footer ---->
<table width="400" cellpadding="0" cellpadding="0" border="0">
<tr>
<td align="right"><a href="../about/system.html"><font face="Helvetica,Arial" size="2">about this site</font></a><font face="Helvetica,Arial" size="2"> | <a href="http://www.sgi.com/company_info/privacy.html">privacy policy</a></font></td>
<td align="center"><font face="Helvetica,Arial">| </font></td>
<td align="left"><a
href="mailto:xfs-masters@oss.sgi.com"><font face="Helvetica,Arial" size="2">xfs master</font></a></td>
</tr>
<tr>
<td align="right"><a href="http://www.sgi.com/company_info/copyright.html"><font face="Helvetica,Arial" size="1">Copyright © 1999 Silicon Graphics, Inc.</font></a><font face="Helvetica,Arial" size="1"> All rights reserved.</font></td>
<td align="center"><font face="Helvetica,Arial">| </font></td>
<td align="left"><a href="http://www.sgi.com/company_info/trademarks/"><font face="Helvetica,Arial" size="1">Trademark Information</font></a></td>
</tr>
</table>
</center>
</body>
</html>
![[BACK]](/icons/back.gif){kind=icon}
Return to index.html CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [Development] / xfs-website.orig