Back to Glossary
Datacenter
Hot Aisle / Cold Aisle
Hot aisle/cold aisle is a datacenter layout that separates cool intake air from hot exhaust air.
Definition
Hot aisle/cold aisle containment is a datacenter cooling design where server racks are arranged in alternating rows: cold aisles (front of servers facing each other) receive cool air, and hot aisles (rear of servers facing each other) collect exhaust air. This prevents hot and cold air from mixing, improving cooling efficiency by 15-25%. Modern datacenters use containment (physical barriers) to further isolate hot and cold aisles. Harch Corp uses hot aisle containment with liquid-cooled rear doors for maximum efficiency.
Related Keywords
hot aisle cold aisledatacenter cooling layoutcold aisle containmenthot aisle containment
Related Terms
PUE (Power Usage Effectiveness)
PUE is the ratio of total facility power to IT equipment power, measuring datacenter efficiency.
Liquid Cooling
Liquid cooling uses liquid instead of air to cool datacenter servers, enabling higher density and efficiency.
Datacenter
A datacenter is a facility housing computer systems and networking infrastructure for computing and storage.