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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">While this is not a direct solution to your issue, all should know that MR documentation can also be found in the Lustre manual at
<a href="http://doc.lustre.org/lustre_manual.xhtml#lnetmr">http://doc.lustre.org/lustre_manual.xhtml#lnetmr</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="color:black">From: </span></b><span style="color:black">lustre-discuss <lustre-discuss-bounces@lists.lustre.org> on behalf of Riccardo Veraldi <Riccardo.Veraldi@cnaf.infn.it><br>
<b>Date: </b>Monday, August 28, 2017 at 10:08 PM<br>
<b>To: </b>Chris Horn <hornc@cray.com>, "lustre-discuss@lists.lustre.org" <lustre-discuss@lists.lustre.org><br>
<b>Subject: </b>Re: [lustre-discuss] Lustre 2.10.0 multi rail configuration<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal">I tried to follow this Intel document <br>
<br>
<a href="https://www.eofs.eu/_media/events/lad16/12_multirail_lnet_for_lustre_weber.pdf">https://www.eofs.eu/_media/events/lad16/12_multirail_lnet_for_lustre_weber.pdf</a><br>
<br>
anyways lnetctl fails with the error:<br>
<br>
add:<br>
- ip2nets:<br>
errno: -22<br>
descr: "cannot add network: Invalid argument"<br>
<br>
and this is my lnet.conf<br>
<br>
ip2nets:<br>
- net-spec: o2ib5<br>
interfaces:<br>
0: ib0[0]<br>
1: ib1[1]<br>
<br>
<br>
here my lustre.conf<br>
<br>
options lnet networks=o2ib5,tcp5(enp1s0f0)<br>
<br>
thanks<br>
<br>
<br>
Rick<br>
<br>
<br>
<br>
On 8/28/17 4:07 PM, Chris Horn wrote:<o:p></o:p></p>
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<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Dynamic LNet configuration (DLC) must be used to configure multi-rail. Lustre 2.10 contains an “lnet.conf” file that has a sample multi-rail configuration. I’ve copied it below
for your convenience.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # lnet.conf - configuration file for lnet routes to be imported by lnetctl</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> #</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # This configuration file is formatted as YAML and can be imported</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # by lnetctl.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> #</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # net:</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # - net type: o2ib1</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # local NI(s):</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # - nid: 172.16.1.4@o2ib1</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # interfaces:</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # 0: ib0</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # tunables:</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # peer_timeout: 180</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # peer_credits: 128</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # peer_buffer_credits: 0</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # credits: 1024</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # lnd tunables:</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # peercredits_hiw: 64</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # map_on_demand: 32</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # concurrent_sends: 256</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # fmr_pool_size: 2048</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # fmr_flush_trigger: 512</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # fmr_cache: 1</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # CPT: "[0,1]"</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # - nid: 172.16.2.4@o2ib1</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # interfaces:</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # 0: ib1</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # tunables:</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # peer_timeout: 180</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # peer_credits: 128</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # peer_buffer_credits: 0</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # credits: 1024</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # lnd tunables:</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # peercredits_hiw: 64</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # map_on_demand: 32</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # concurrent_sends: 256</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # fmr_pool_size: 2048</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # fmr_flush_trigger: 512</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # fmr_cache: 1</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # CPT: "[0,1]"</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # route:</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # - net: o2ib</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # gateway: 172.16.1.1@o2ib1</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # hop: -1</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # priority: 0</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # peer:</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # - primary nid: 192.168.1.2@o2ib</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # Multi-Rail: True</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # peer ni:</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # - nid: 192.168.1.2@o2ib</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # - nid: 192.168.2.2@o2ib</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # - primary nid: 172.16.1.1@o2ib1</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # Multi-Rail: True</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # peer ni:</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # - nid: 172.16.1.1@o2ib1</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> # - nid:
<a href="mailto:172.16.2.1@o2ib1">172.16.2.1@o2ib1</a></span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Chris Horn</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> </span><o:p></o:p></p>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span style="font-family:"Calibri",sans-serif;color:black">From:
</span></b><span style="font-family:"Calibri",sans-serif;color:black">lustre-discuss
<a href="mailto:lustre-discuss-bounces@lists.lustre.org"><lustre-discuss-bounces@lists.lustre.org></a> on behalf of Riccardo Veraldi
<a href="mailto:Riccardo.Veraldi@cnaf.infn.it"><Riccardo.Veraldi@cnaf.infn.it></a><br>
<b>Date: </b>Monday, August 28, 2017 at 5:49 PM<br>
<b>To: </b><a href="mailto:lustre-discuss@lists.lustre.org">"lustre-discuss@lists.lustre.org"</a>
<a href="mailto:lustre-discuss@lists.lustre.org"><lustre-discuss@lists.lustre.org></a><br>
<b>Subject: </b>[lustre-discuss] Lustre 2.10.0 multi rail configuration</span><o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">Hello,<br>
I am trying to deploy a multi rail configuration on Lustre 2.10.0 on RHEL73.<br>
My goal is to use both the IB interfaces on OSSes and client.<br>
I have one client and two OSSes and 1 MDS<br>
My LNet network is labelled o2ib5 and tcp5 just for my own convenience. What I did is to modify the configuration of lustre.conf<br>
<br>
options lnet networks=o2ib5(ib0,ib1),tcp5(enp1s0f0)<br>
<br>
lctl list_nids on either hte OSSes or the client shows me both local IB interfaces:<br>
<br>
<b>172.21.52.86@o2ib5<br>
172.21.52.118@o2ib5</b><br>
172.21.42.211@tcp5<o:p></o:p></p>
<p>anyway I can't run a LNet selftest using the new nids, it fails.<o:p></o:p></p>
<p class="MsoNormal">Seems like they are unused.<br>
Any hint on the multi-rail configuration needed?<br>
What I'd like to do is use both InfiniBand cards (ib0,ib1) on my two OSSes and on my client to leverage more bandwidth usage<br>
since with only one InfiniBand I cannot saturate the disk performance.<br>
thank you <o:p></o:p></p>
<p> <o:p></o:p></p>
</blockquote>
<p><o:p> </o:p></p>
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