[ovirt-users] Use an oVirt-VM as a VDSM server

[Fred Rolland]

Hi,

You will need to enable nested virtualization in your physical host.

To check if enable:
cat /sys/module/kvm_intel/parameters/nested

If the output is "N", you will need to add a file
/etc/modprobe.d/kvm_intel.conf
with the content:
options kvm-intel nested=Y

Then reboot, or reload the KVM module.

Note that the performance of the nested VMs will be impacted.

Regards,
Fred

[1] https://www.linux-kvm.org/page/Nested_Guests
[2]
https://www.linuxtechi.com/enable-nested-virtualization-kvm-centos-7-rhel-7/

On Mon, Apr 30, 2018 at 4:02 PM, James Michels <
karma.sometimes.hurts at gmail.com> 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
>
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>
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