Not all steps that improve the energy efficiency of your data center will boost performance in key metrics for measuring "green" data centers. An example: removing fans from servers, which actually has an adverse effect on Power Usage Effectiveness (PUE), the leading metric for data center efficiency.
This dilemma was discussed in a new video from Microsoft featuring Dr. Dileep Bhandarkar, which designs and builds Microsoft's data centers. Bharkander discusses how Microsoft realized it was duplicating effort by using fans in both servers and air handlers in its data center environment. So it designed the latest version of its IT-PAC data center container module as a giant air handler, with airflow management that eliminated the need for fans in the servers.
Here's the full video, which runs about 3 minutes.
[tags]modular data center infrastructure,generation 4 containers,pue,gfs,environmental,sustainability,global foundation service[/tags]