Power availability is one of the most important challenges facing datacenters today. In the past, datacenter floor space has always loomed as the primary issue. Now, more and more datacenters run out of power availability before they run out of floor space.

In addition, cooling requirements for dense servers are driving power demand and taxing the normal datacenter operational procedures. Operations are not properly “tuned” to accommodate the new energy-hungry environment. This paper suggests strategies for reducing power consumption.