[lustre-discuss] Network configuration in heterogeneous cluster

[Horn, Chris]

The ip2nets style configuration can be used for this case - https://build.whamcloud.com/job/lustre-manual/lastSuccessfulBuild/artifact/lustre_manual.xhtml#lnet_ip2nets

Chris Horn

From: lustre-discuss <lustre-discuss-bounces at lists.lustre.org> on behalf of Hanno Rein via lustre-discuss <lustre-discuss at lists.lustre.org>
Date: Friday, September 5, 2025 at 9:11 AM
To: lustre-discuss at lists.lustre.org <lustre-discuss at lists.lustre.org>
Subject: [lustre-discuss] Network configuration in heterogeneous cluster

Hi,

I have a heterogeneous cluster and the interface names are therefore different on different nodes. For easier maintenance, I would like to continue booting them from the same disk image. The only thing I can't figure out is how to deal with lnet kernel module options.

In one case I want them to be

   options lnet networks="o2ib0(ibs5),tcp0(eno1)"

In the other case, they should be

   options lnet networks="o2ib0(ibp3s0),tcp0(enp6s0)"

Do you have any suggestions on how to handle this?

Thank you!
   Hanno
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