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<div class="moz-cite-prefix">I tried to follow this Intel document <br>
<br>
<a class="moz-txt-link-freetext" 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:<br>
</div>
<blockquote type="cite"
cite="mid:699BCFF4-3F07-4A0B-95F4-870C8E837DD9@cray.com">
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<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">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.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">> #
lnet.conf - configuration file for lnet routes to be
imported by lnetctl<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">> #<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">> # This
configuration file is formatted as YAML and can be imported<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">> # by
lnetctl.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">> #<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">> # net:<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">> # -
net type: o2ib1<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">> #
local NI(s):<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">> #
- nid: 172.16.1.4@o2ib1<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">>
# interfaces:<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">>
# 0: ib0<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">>
# tunables:<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">>
# peer_timeout: 180<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">>
# peer_credits: 128<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">>
# peer_buffer_credits: 0<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">>
# credits: 1024<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">>
# lnd tunables:<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">>
# peercredits_hiw: 64<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">>
# map_on_demand: 32<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">> #
concurrent_sends: 256<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">>
# fmr_pool_size: 2048<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">>
# fmr_flush_trigger: 512<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">>
# fmr_cache: 1<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">>
# CPT: "[0,1]"<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">> #
- nid: 172.16.2.4@o2ib1<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">>
# interfaces:<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">>
# 0: ib1<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">>
# tunables:<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">>
# peer_timeout: 180<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">>
# peer_credits: 128<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">>
# peer_buffer_credits: 0<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">>
# credits: 1024<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">>
# lnd tunables:<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">>
# peercredits_hiw: 64<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">>
# map_on_demand: 32<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">>
# concurrent_sends: 256<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">>
# fmr_pool_size: 2048<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">>
# fmr_flush_trigger: 512<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">>
# fmr_cache: 1<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">>
# CPT: "[0,1]"<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">> # route:<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">> # -
net: o2ib<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">> #
gateway: 172.16.1.1@o2ib1<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">> #
hop: -1<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">> #
priority: 0<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">> # peer:<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">> # -
primary nid: 192.168.1.2@o2ib<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">> #
Multi-Rail: True<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">> #
peer ni:<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">> #
- nid: 192.168.1.2@o2ib<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">> #
- nid: 192.168.2.2@o2ib<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">> # -
primary nid: 172.16.1.1@o2ib1<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">> #
Multi-Rail: True<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">> #
peer ni:<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">> #
- nid: 172.16.1.1@o2ib1<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">> #
- nid:
<a href="mailto:172.16.2.1@o2ib1" moz-do-not-send="true">172.16.2.1@o2ib1</a><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">Chris Horn<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri"><o:p> </o:p></span></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;color:black">From: </span>
</b><span style="font-family:Calibri;color:black">lustre-discuss
<a class="moz-txt-link-rfc2396E" href="mailto:lustre-discuss-bounces@lists.lustre.org"><lustre-discuss-bounces@lists.lustre.org></a> on behalf
of Riccardo Veraldi <a class="moz-txt-link-rfc2396E" 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 class="moz-txt-link-rfc2396E" href="mailto:lustre-discuss@lists.lustre.org">"lustre-discuss@lists.lustre.org"</a>
<a class="moz-txt-link-rfc2396E" 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<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<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>
</div>
</blockquote>
<p><br>
</p>
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