Il giorno lun 25 mag 2020 alle ore 11:30 Giulio Casella <giulio@di.unimi.it> ha scritto:
Hi all,
I have in production a 4.3.9 setup of ovirt, based on a standalone
engine, not HE.
I have 3 datacenters (an 3 clusters). One of these clusters is composed
of many tenth of HP blades, accessing storage via InfiniBand (used as
normal NICs, via ipoib). They're not the state of the art, but I cannot
renew the entire hardware.

After a setup of ovirt node 4.4 I cannot see ib0 nic.

I managed to see it installing CentOS 8, enabling Mellanox repo
(https://linux.mellanox.com/public/repo/mlnx_ofed/latest/rhel8.1/mellanox_mlnx_ofed.repo)
and installing package "mlnx-ofed-basic".

In Ovirt Node it's not possible, that package require dependencies from
CentOS 8 repos, not present in ovirt repo.

Is there any chances to have infiniband NICs working in ovirt?


Solutions:
1) You can use CentOS 8 hosts instead of oVirt Node 4.4 hosts
2) You can:
   - manually enable CentOS repos on oVirt Node 4.4 host within /etc/yum.repos.d/
   - yum install the mellanox package and all the required dependencies
   - disable the repos you enabled previously.
   The packages installed during this step will be persisted on oVirt Node upgrades..

I would consider solution 1 for your specific case.

 

TIA,
gc
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