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<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">Hello<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">If I understand correctly, you're telling that you have 2 configuration files:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:35.4pt">/etc/modprobe.d/lnet.conf<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:35.4pt">options lnet networks=tcp<o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:35.4pt">[root@hpc-oss-03 ~]# cat /etc/modprobe.d/lustre.conf<br>
options lnet networks="tcp(ens2f0)"<br>
options lnet ip2nets="tcp(ens2f0) 10.140.93.*<o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">That means you are declaring twice the "networks" option for "lnet" kernel module. I don't know how 'modprobe' will behave regarding that.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">If you have a very simple configuration, where your nodes only have one Ethernet interface "ens2f0", you only need the following lines, from the 3 above:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">options lnet networks="tcp(ens2f0)"</span><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">If this interface is the only Ethernet interface on your host, you don't even need a network specific setup. By default, when loading Lustre, in the absence of a network configuration,
Lustre will automatically setup the only ethernet interface to use it for "tcp".<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">Aurélien<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-left:35.4pt"><b><span style="font-size:12.0pt;color:black">De :
</span></b><span style="font-size:12.0pt;color:black">lustre-discuss <lustre-discuss-bounces@lists.lustre.org> au nom de Sid Young via lustre-discuss <lustre-discuss@lists.lustre.org><br>
<b>Répondre à : </b>Sid Young <sid.young@gmail.com><br>
<b>Date : </b>mardi 23 février 2021 à 06:59<br>
<b>À : </b>lustre-discuss <lustre-discuss@lists.lustre.org><br>
<b>Objet : </b>[EXTERNAL] [lustre-discuss] need to always manually add network after reboot<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:35.4pt"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt">G'Day all,<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt">I'm finding that when I reboot any node in our new HPC, I need to keep manually adding the network using lnetctl net add --net tcp --if ens2f0<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt">Then I can do an lnetctl net show and see the tcp part active...<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt">I have options in /etc/modprobe.d/lnet.conf<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt">options lnet networks=tcp<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt">and <o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt">[root@hpc-oss-03 ~]# cat /etc/modprobe.d/lustre.conf<br>
options lnet networks="tcp(ens2f0)"<br>
options lnet ip2nets="tcp(ens2f0) 10.140.93.*<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt">I've read the doco and tried to understand the correct parameters for a simple Lustre config so this is what I worked out is needed... but I suspect its still wrong.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt">Any help appreciated :)<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt">Sid Young<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt"><o:p> </o:p></p>
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