We are currently running vSphere but have different hardware hosts. 2x Dell R710 and 1x Dell R610 - all have different speed processors. What are the implications of migrating VM's between the hosts? Will Windows 2008 need to be activated each time? Also is it possible to enable DRS further down the line or will I encounter the same issue? In order for this to work correctly do all your hosts have to be the same make and model with the same processor? Seems a bit awkward to have to buy exactly the same machines as I am sure most people do not have identical kit and their VM infrastructure has grown over time.
Obviously it is Microsoft that would cause the re-activation.