Adding Francesco. On Sun, Feb 21, 2016 at 2:19 PM, Markus Stockhausen <stockhausen@collogia.de> wrote:
Hi there,
we upgraded Ovirt to 3.6, added the first Centos 7 host and created a new cluster with compatibility level 3.6 around it. Until now we are running with Fedora nodes. The first Linux VMs are already running in the new cluster. With the first Windows VM migrated over we once again face the old Windows activation problem. The system request us to reactivate the Windows license.
To make a long story short: I manually compiled OVirt/Centos qemu 2.3 and enabled the old Fedora machine type pc-1.0. Afterwards I had to lower compatibility level of the cluster to 3.5 because Ovirt tried to start the old machine type with memory hotplug support -> FAIL. Finally everything is up and running.
Conclusion: OVirt always tries to start VMs with memory hotplug in a current 3.6 cluster. The machine type (e.g. rhel6.6.0) ist not checked and qemu will fail during startup with the message: qemu-kvm: "-memory 'slots|maxmem'" is not supported" Older post on mailing list: http://lists.ovirt.org/pipermail/users/2016-January/037034.html
Question: What is the desired way to disable the hotplug qemu parametrization for single VMs in 3.6 cluster? It MUST be possible otherwise it would not make sense to choos older machine types.
Markus
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