<div dir="auto">Hum ya not sure about that we use a Lnet server that connects our clients to the mdt and mgs which both are together on the same server then our clients are stared under a system.d service that’s hits the modprobe.d luster conf to get the ip route </div><div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Fri, Oct 3, 2025 at 1:00 PM Sonia Sharma <<a href="mailto:sonia.sh.sharma@oracle.com">sonia.sh.sharma@oracle.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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Thanks, Tim for a quick response.</div>
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I should have mentioned the specific scenario - In this case, lustre client is co-located with an MDS lustre server and the rest of the nice on the host are specifically for MDTs.</div>
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I believe the lustre.conf approach wouldn’t work in that case, or there is still a way ?</div>
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Best</div>
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Sonia</div>
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Confidential – Oracle Internal<br>
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From: </b>Tim Schnedler <<a href="mailto:timothyschnedler@gmail.com" target="_blank">timothyschnedler@gmail.com</a>><br>
<b>Date: </b>Friday, October 3, 2025 at 11:54 AM<br>
<b>To: </b>Sonia Sharma <<a href="mailto:sonia.sh.sharma@oracle.com" target="_blank">sonia.sh.sharma@oracle.com</a>><br>
<b>Cc: </b>lustre-discuss <<a href="mailto:lustre-discuss@lists.lustre.org" target="_blank">lustre-discuss@lists.lustre.org</a>><br>
<b>Subject: </b>[External] : Re: [lustre-discuss] Lustre Client pinned to use specific NIC on host<br>
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<div dir="auto">One way to do this is to make a lustre conf file in etc/ modprobe.d</div>
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<div dir="ltr" class="gmail_attr">On Fri, Oct 3, 2025 at 12:48 PM Sonia Sharma via lustre-discuss <<a href="mailto:lustre-discuss@lists.lustre.org" target="_blank">lustre-discuss@lists.lustre.org</a>> wrote:</div>
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<div class="gmail_quote">Hello Dear Lustre Community</div>
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I was wondering if there is some setting/way to make a Lustre Client use only a specific NIC to route its LNet messages from even when multiple NICs on that host are configured with the same LNet network.</div>
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<div dir="ltr" class="gmail_quote"><span style="font-family:Aptos,Arial,Helvetica,sans-serif;font-size:12pt">For example, let’s say I have a host with this below LNet configuration, then is there a way that I can have the Lustre client to use only “</span><span style="font-family:Aptos,Arial,Helvetica,sans-serif;font-size:16px;color:rgb(0,0,0)"><i>10.30.201.26@tcp</i></span>”<span style="font-size:16px"> for
all its communication</span></div>
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<i>[node1]# lnetctl net show</i></div>
<div class="gmail_quote" style="font-family:Aptos,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<i>net:</i></div>
<div class="gmail_quote" style="font-family:Aptos,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<i> - net type: lo</i></div>
<div class="gmail_quote" style="font-family:Aptos,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<i> local NI(s):</i></div>
<div class="gmail_quote" style="font-family:Aptos,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<i> - nid: 0@lo</i></div>
<div class="gmail_quote" style="font-family:Aptos,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<i> status: up</i></div>
<div class="gmail_quote" style="font-family:Aptos,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<i> - net type: tcp</i></div>
<div class="gmail_quote" style="font-family:Aptos,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<i> local NI(s):</i></div>
<div class="gmail_quote" style="font-family:Aptos,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<i> - nid: 10.30.201.26@tcp</i></div>
<div class="gmail_quote" style="font-family:Aptos,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<i> status: up</i></div>
<div class="gmail_quote" style="font-family:Aptos,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<i> interfaces:</i></div>
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<i> 0: enp1s0</i></div>
<div class="gmail_quote" style="font-family:Aptos,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<i> - nid: 10.30.201.10@tcp</i></div>
<div class="gmail_quote" style="font-family:Aptos,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<i> status: up</i></div>
<div class="gmail_quote" style="font-family:Aptos,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<i> interfaces:</i></div>
<div class="gmail_quote" style="font-family:Aptos,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<i> 0: enp1s0:10269</i></div>
<div class="gmail_quote" style="font-family:Aptos,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<i> - nid: 10.30.202.241@tcp</i></div>
<div class="gmail_quote" style="font-family:Aptos,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<i> status: up</i></div>
<div class="gmail_quote" style="font-family:Aptos,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<i> interfaces:</i></div>
<div class="gmail_quote" style="font-family:Aptos,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<i> 0: enp1s0:10257</i></div>
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<i><br>
</i></div>
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Best regards</div>
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Sonia</div>
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Confidential – Oracle Internal</p>
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