On Monday, April 30, 2018 9:02:35 AM EDT James Michels wrote: > Greetings. > > In terms of teaching our students how to create and configure an oVirt > infrastructure, we're planning to provide each of them a VM that will act > as a Manager server, which has no issues so far. The problem is that we > don't have enough physical machines to use as virtualization servers > (VDSM), therefore we have been trying to use a CentOS7 based oVirt guest to > run as a VDSM server. > > However, when trying to add it as a host, a (logical) error message shows > up saying that the VM doesn't allow virtualization. > > The question is simple: Is there a way to enable virtualization on an oVirt > VM, so we can deploy them as VDSM servers? > > This is oVirt 4.2.2 FWIW. > > Thanks > > James
James, Yes its possible, when you install (or re-install) a PHYSICAL host, in the host popup dialog there is a kernel tab. Enable 'Nested Virtualization' kernel parameter. Once that is enabled and the host is rebooted then you can use VMs as VDSM hosts for your setup. Some gotchas: - Make sure your cluster cpu type actually matches your physical hosts, if you select a wrong one then the exposed CPU options will be wrong and the nested virtualization will not work properly. - You will need to enable mac spoofing for the networking to work correctly. - VMs running inside a host that is a VM itself will likely have a fairly significant performance hit due to the nested virtualization. _______________________________________________ Users mailing list [email protected] http://lists.ovirt.org/mailman/listinfo/users
