One has to wonder why

IBM is not using it's wonderful (and apparently green) ultra high density blade systems for this consolidation??? After all they have lots of processors in a really small box and you can virtualise your machines on those.

Every day another vendor tells us that blades are the solution to all our problems, so long as those problems are how to get the air to plasma temperatures in our data centres. Of course this power density is our excuse to buy the next 'green' solution and deliver in rack water cooling because that is the only way to stop the blades frying. Best not forget the few million for that really expensive box for your disks to live in either, or the floor reinforcements to hold it all up.

A cynic might wonder if this all started when somebody in the IBM canteen said "What are we going to do with all those mainframes nobody wants? It is going to cost us a fortune to dump them now that WEE is in force"