In addition to supplying power and connectivity, your Data Center must cool the servers, networking devices, and other machines that it houses. The environmental controls within a building that regulate temperatures and air circulation are referred to, collectively, as HVAC—heating, ventilation, and air conditioning. This HVAC infrastructure has three jobs to do in a Data Center:
Keep temperatures low
Keep them constant
Diffuse hot spots created by clusters of equipment
Low temperatures are necessary for the efficient operation of servers. Like most electronic devices, they function more effectively at cooler temperatures—circuit speeds are faster due to lower electrical resistance, components degrade slower, and heat removal ...