Sunday, July 12, 2009

Install an Equal Number of Servers in All Cabinets

As we all know, the more hardware there is in a cabinet, the more heat will be generated. If you note which cabinets are full, you’ll probably also notice that they generate more heat and are usually clustered together. By doing this, you’ll be forcing a single cooling system (air conditioner) to work much harder than the rest. It may still work, but you need to keep in mind that air conditioners work most efficiently when they can work together to standardize the power supplied to each cabinet. If you can evenly load each cabinet, you’ll be able to evenly distribute the load between air conditioners, which will result in much lower cooling costs. What do we recommend? Limit the maximum peak load per rack to about 8.5 kW, and the average working load to 5.4 kW.

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