<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Consolas;
panose-1:2 11 6 9 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
pre
{mso-style-priority:99;
mso-style-link:"HTML Preformatted Char";
margin:0in;
margin-bottom:.0001pt;
font-size:10.0pt;
font-family:"Courier New";}
span.EmailStyle17
{mso-style-type:personal;
font-family:"Calibri",sans-serif;
color:windowtext;}
span.HTMLPreformattedChar
{mso-style-name:"HTML Preformatted Char";
mso-style-priority:99;
mso-style-link:"HTML Preformatted";
font-family:Consolas;}
span.EmailStyle20
{mso-style-type:personal-reply;
font-family:"Calibri",sans-serif;
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="EN-US" link="#0563C1" vlink="#954F72">
<div class="WordSection1">
<p class="MsoNormal"><b>From:</b> lustre-devel [mailto:lustre-devel-bounces@lists.lustre.org]
<b>On Behalf Of </b>Ben Evans<br>
<b>Sent:</b> Monday, November 2, 2015 11:26 AM<br>
<b>To:</b> Patrick Farrell <paf@cray.com>; lustre-devel@lists.lustre.org<br>
<b>Subject:</b> Re: [lustre-devel] porting Lustre server to RHEL6.7 distro running a kernel.org linux-3.12.39<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black">Using ZFS as a backing filesystem may be a simpler way to go here if you want to stay with kernel.org. The lustre server + ZFS is patchless, and if you’re writing a new LND, you probably don’t
care about the backing filesystem anyway.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">You are 100% spot-on, at this juncture in the LND development, I don’t really care so much about the backing filesystem; whatever builds/works such that I can continue LND testing in the client/server environment.
I suspect a large step between LNet selftests and full-on LFS.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">It’s Monday after a time zone change, hence a small clarification on your statement ‘</span><span style="font-size:10.5pt;color:black">The lustre server + ZFS is patchless</span><span style="color:#1F497D">‘.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">By patchless you saying the lustre source kernel patches are not required when using ZFS? Just to be crystal-clear.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Stan.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black">-Ben Evans<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black"><o:p> </o:p></span></p>
</div>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span style="color:black">From: </span></b><span style="color:black">lustre-devel <<a href="mailto:lustre-devel-bounces@lists.lustre.org">lustre-devel-bounces@lists.lustre.org</a>> on behalf of Patrick Farrell <<a href="mailto:paf@cray.com">paf@cray.com</a>><br>
<b>Date: </b>Monday, November 2, 2015 at 3:13 PM<br>
<b>To: </b>"<a href="mailto:lustre-devel@lists.lustre.org">lustre-devel@lists.lustre.org</a>" <<a href="mailto:lustre-devel@lists.lustre.org">lustre-devel@lists.lustre.org</a>><br>
<b>Subject: </b>Re: [lustre-devel] porting Lustre server to RHEL6.7 distro running a kernel.org linux-3.12.39<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black"><o:p> </o:p></span></p>
</div>
<div>
<div>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black">Stan,<br>
<br>
Why not work with the CentOS 7 kernel on the server anyway? Is something your LND needs not available? CentOS 7 is freely available and isn't far off in terms of kernel version from 3.12.<br>
<br>
You may be hard pressed to get useful advice on changing the ldiskfs patch series, that has the potential to be a pretty big job.<br>
<br>
Regards,<br>
- Patrick Farrell<o:p></o:p></span></p>
<div>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black">On 11/02/2015 01:05 PM, Smith, Stan wrote:<o:p></o:p></span></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Hello,</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black"> I’m currently unable to search the lustre-devel archives + 1<sup>st</sup> post to this list.</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black"> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Having read lustre documentation I find only references to building lustre server for stock ‘distro’ kernels.</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black"> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Does someone have suggestions on how to patch ldiskfs for a kernel.org kernel…..specifically weeding out RHEL/SLES/* distro FS enhancements from a kernel.org base?</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black"> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black">I have written a Reliable Datagram LND which passes the LNet selftests (client lustre build) now entering the world of lustre server building.</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Patching the kernel.org kernel for lustre server was fairly straightforward, creating the patch series for ldiskfs is another story.</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black"> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Thanks,</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black"> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Stan.</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black"><br>
<br>
<br>
<o:p></o:p></span></p>
<pre><span style="color:black">_______________________________________________<o:p></o:p></span></pre>
<pre><span style="color:black">lustre-devel mailing list<o:p></o:p></span></pre>
<pre><span style="color:black"><a href="mailto:lustre-devel@lists.lustre.org">lustre-devel@lists.lustre.org</a><a href="http://lists.lustre.org/listinfo.cgi/lustre-devel-lustre.org">http://lists.lustre.org/listinfo.cgi/lustre-devel-lustre.org</a><o:p></o:p></span></pre>
</blockquote>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black"><o:p> </o:p></span></p>
</div>
</div>
</div>
</body>
</html>