Here's where I am right now.
- 7 hosts with EVC in Opteron Generation 3 mode added over the past 3-4 years using Istanbul and Magny-Cours based processors.
- 150 running VMs, many business critical
- 3 new host with new Bulldozer processors,
I've tried putting the new hosts in the exisiting cluster and it won't work. Apparently the new Bulldozer chips do not support the Generation 3 EVC mode, but a lower subset called Generation 3 with no 3D now. I tried making a new cluster with Gen 4 EVC, and they don't Vmotion. I tried dropping it to Gen3 (no 3Dnow) and they won't vmotion from the regular Gen 3 hosts. I presumably can't drop to EVC mode Gen3(no 3dnow) on the existing hosts while they are all up and running with 3dnow enabled.
So it would appear I need to somehow drop the existing VMs to the Gen3(no 3Dnow) mode as that is the latest one that supports all of these processors. How do I get there from here? I mean, I can't shut down all 150 Vms and put the cluster in a new EvC mode. What would you guys recommend? I don't know whether to blame AMD or Vmware, but EVC is supposed to eliminate these kinds of problems, right?