We are going to upgrade/replace our hypervisors and servers with RHEL 8.2, our new license also includes access to Red Hat Enterprise Linux Advanced Virtualization repo.
From the current OpenNebula documentation
qemu-kvm-rhev package is supported by OpenNebula 5.12 with RH7 (KVM Node Installation — OpenNebula 5.12.7 documentation), but it also supports the newer RH8 version?
The newer libvirt/qemu packages were moved to "Red Hat Enterprise Linux Advanced Virtualization* repo in RH8.x. (What are the differences between qemu-kvm and qemu-kvm-rhev and all sub-packages? - Red Hat Customer Portal). This repo provides libvirt 6.0 and qemu-kvm 5.1.0
Which libvirt/kvm versions are supported by OpenNebula 5.12 with rh8?
It is possible to use the new ones from Red Hat Enterprise Linux Advanced Virtualization repo?
Thanks in advance!
CentOS/RHEL 8 is tested and certified only with base components (libvirt 6.0, qemu 4.2.0) for now, but covering AV is on the roadmap. So, it’s only up to you if you decide to use the untested combination (in general there shouldn’t be problem, but I don’t think there is any real benefit in the common use for you right now). It’ll make more sense during the time when the base EL8’s qemu gets old, but the one from AV stays relatively current.
Just curious, what system/version were your old/current hypervisors?
Thanks a lot for the info! We will try the regular base components in that case.
At this moment our hyps and opennebula servers are running CentOS 7.9 and qemu enterprise packages. We will replace CentOS by RH8.2 in production probably before summer.
Just to inform you, we have started the migration process to rhel8 with OpenNebula 5.12 in our testbed first. Everything went smoothly also with VM live migrations between hyps running centos7 to the new rhel8 hyps.