Hi Jose,

The correct way to do it is by:
1. Putting all hosts in maintenance mode
2. Changing the cluster cpu type to the desired one
3. Install the new host
4. Activate the hosts
5. Re-run the vms



On Fri, Feb 5, 2016 at 2:24 PM, <suporte@logicworks.pt> wrote:
Hi,
 I'm trying to add a new old host (Intel(R) Xeon(R) CPU  X3430  @ 2.40GHz Intel Nehalem Family) to oVirt Engine Version: 3.5.4.2-1.el7.centos.
But I'm getting this error:
host does not meet the cluster's minimum CPU level. Missing CPU features : model_SandyBridge


What happen if I lower the cluster CPU type? Do I loose functionalities? Do I need to shutdown all VMs before change the cluster CPU type?
Do you see any problem here?

Thanks

José


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Regards,
Moti