Actually, none of this is necessary. The drive toward higher density per rack is a problem. By doing that cooling problems are made worse. I was at an event on data centers at the University of Illinois at Urbana-Champagne and a speaker from Microsoft discussed their findings. For one thing, space is not an issue, except in Tokyo and Hong Kong. Thus, you are better spreading the system out a bit.
Another thing they should consider, since they are using their own software, is another processor architecture. There are many very effecient processors based on the ARM and POWER architectures that might run their code faster and use a lot less power.
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.