Hot Aisle / Cold Aisle

Hot aisle/cold aisle is a data centre and server room layout strategy that separates the cool air supplied to IT equipment from the hot exhaust air that equipment generates. Server racks face each other with fronts toward a cold aisle (cool air supply) and backs exhausting heat into a contained hot aisle. Precision cooling units then capture hot aisle air directly, improving cooling efficiency and reducing hot-spot failures.

In Indian office fit-outs, server rooms and network equipment rooms require hot/cold aisle planning even at modest scales — a 10-rack room in a Hinjewadi GCC fit-out still benefits from directed airflow. Precision air conditioning units (PACs) or in-row cooling are specified for the server room, while the surrounding office is served by the building's standard HVAC system. Ceiling height, raised floor void, and slab load capacity all need to be confirmed before layout is finalised.

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