Which of the following best describes the reason for using hot and cold aisles?
A.
To ensure air exhaust from one aisle doesn’t blow into the air intake of the next aisle
B.
To ensure the dewpoint stays low enough that water doesn’t condensate on equipment
C.
To decrease amount of power wiring that is run to each aisle
D.
Too maintain proper humidity in the datacenter across all aisles
What’s wrong with D?
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Hot aisle/cold aisle is a layout design for server racks and other computing equipment in a data centre. The goal of a hot aisle/cold aisle configuration is to conserve energy and lower cooling costs by managing air flow.
The hot aisles are the area behind the server racks, where the racks will blow the hot air to it, the cold aisles are the areas in front of the racks where the servers will take the cold air to cool down, you will need to make the perforated tiles in the cold aisles and the suction for the return in the hot aisles, pay attention to make sure that the cold aisles are shared by two server tacks rows (that mean they are facing each other) and the same should be for the hot aisles (a server rack row back side will be to the back of another server racks row), never mix cold and hot aisles as this will result in humid wet areas that could cause troubles and reduce cooling efficiency.
In its simplest form, hot aisle/cold aisle data center design involves lining up server racks in alternating rows with cold air intakes facing one way and hot air exhausts facing the other. The rows composed of rack fronts are called cold aisles. Typically, cold aisles face air conditioner output ducts. The rows the heated exhausts pour into are called hot aisles. Typically, hot aisles face air conditioner return ducts.
In short, hot aisle/cold aisle are designed to:
• to conserve energy
• lower cooling costs
• Manage air flow.
• Reduce humidity
• cold air intakes facing one way and
• hot air exhausts facing the other
This means that
A. To ensure air exhaust from one aisle doesn’t blow into the air intake of the next aisle is correct
D. Too maintain proper humidity in the datacenter across all aisles is wrong as we do not want to maintain humidity. We want to eradicate it.
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