How are cold aisle server racks made in a data center

Cold aisle containment systems use doors at aisle ends, ceiling panels or lids above racks, and structural frames to create enclosed zones where cold supply air flows directly to IT equipment intakes. Without containment, cold supply and hot exhaust air mix throughout the data. Hot aisle and cold aisle containment are foundational concepts in data center design. When implemented correctly, they improve efficiency, reduce energy consumption, extend equipment life, and enhance overall reliability. Cooling units. Most data centers use air-based cooling systems, where cool air is delivered to the server inlets (the “cold side”), and hot air is exhausted at the outlets (the “hot side”).