A view of the server pods in the Microsoft Dublin data center, showing the hot air containment structures enclosing the rear of the cabinets (click for larger version of image).
Whether using free cooling or chillers, chilled air needs to find an efficient path to the servers to do its job. Separating cool supply air and warm exhaust air is a key data center efficiency strategy. This photo shows the interior of Microsoft's Dublin data center, including server pods featuring a hot aisle containment system using a fixed structure, with the cabinets housed in a fitted opening in the side. The hot aisle enclosure has a entrance (green end door) for admin access.
Next: Diagram of Free Cooling System (Air Economization)
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