What does Hot Aisle Containment (HAC) primarily accomplish?

Hot Aisle Containment (HAC) primarily serves to keep hot air contained within data halls. The concept revolves around creating a physical barrier that contains the hot air produced by server racks, which ensures that this heated air does not mix with the cooler air supplied to the servers. By directing the airflow more efficiently, HAC helps to prevent overheating of equipment and promotes a more stable and efficient cooling environment.

While HAC can also indirectly influence power efficiency by allowing cooling systems to operate more effectively, its main function is to manage the hot air produced during server operation. This containment strategy is crucial for maintaining optimal operating conditions, thereby enhancing performance and reducing the risk of thermal events that can lead to server failures.