I think I already know the answer to this but I'll put it out there anyway.
I'm trying to move some VMs from cluster1 to cluster2 (all hosts are ESXi4.1). Intially I had problems with CPU features on cluster2 but after some research I was able to enable EVC on cluster2 (cluster1 does not have EVC enabled).
It now appears in order to migrate my VMs, they need to be shutdown. To enable EVC on cluster1, I'm going to have to shutdown all VMs anyway, so either way it looks like an outage. Is there any way around this?
Cheers,
Tim