----- Original Message -----
From: "Michal Skrivanek" <michal.skrivanek@redhat.com> To: "Sandro Bonazzola" <sbonazzo@redhat.com>, "Roy Golan" <rgolan@redhat.com> Cc: "engine-devel" <engine-devel@ovirt.org> Sent: Monday, December 9, 2013 5:50:49 PM Subject: Re: [Engine-devel] Setting cluster CPU
On Dec 9, 2013, at 16:01 , Sandro Bonazzola <sbonazzo@redhat.com> wrote:
Hi, I'm trying to set the cluster CPU type while adding the first host to the Default cluster.
I know how to set the CPU type on a new cluster, since I'll do that in AIO plugin. But I'm not sure to understand how to set the CPU on an existing cluster.
Should it be enough to specify cpu arg while adding the host to the cluster? (before adding an host, cpu is None on the cluster) Because I'm trying to do that without success (obtaining a sandybridge cluster while specifying westmere cpu).
The CPU should be set from the first host if None. That is needed for the PPC support. Roy, we talked about it recently, where are we with this patch.
We already support modifying the CPU level of an existing cluster. If changing it to a higher level then we just change it. If changing it to a lower level, and there are running VMs on the cluster, then we warn the user that some VMs might not be migrate-able, as we added a scheduling filter to filter out hosts with improper CPU level. Unless I'm missing something, that covers the use-case, isn't it?
Thanks, michal
Michael, can you take a look at http://gerrit.ovirt.org/22129 and advise?
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