What am I missing?
I'm not an expert with virtualisation so i'm trying to work out why its so bad to have cluster nodes virtualised.
The only thing that I can' think of is that you don't want your cluster nodes all sitting on the same host which is resolved with DRS/Affiniity rules.
I know that dba's usually have objections due to disk access speeds etc which is fair enough but I can't think of any other reason