Intel IT began our cloud roadmap implementation back in 2006 starting with our Grid computing environment in Silicon Design. Since then we expanded that early roll-out to our Office and Enterprise environments. As we plan forward, we anticipate new bottle necks in overall system performance shifting away from compute to storage and networking I/O. This is mostly driven by the increased capabilities of the latest generation Xeon processors that has enabled more and denser VMs.
My observations talking to my peers who manage similar IT enterprises is that they seem focused on capacity management in terms of CPU, memory and storage capacity without adequate focus on IO capacity. Properly monitoring and controlling network and storage IO bottlenecks is paramount to maintaining overall system performance.
Check out this cloud podcast interview that addresses the technologies Intel IT has on its cloud roadmap.