Power Management Solutions



How Row-based Data Center Cooling Works

Row-based cooling was designed with a focus on capturing hot exhaust air from IT equipment in a pod. The higher the hot air capture index values, the less hot air recirculation that occurs, which decreases temperature variations across racks (such as hot spots). It doesn’t matter where the cold air goes; it matters where the hot air comes from. Row-based cooling units can also help to cool ancillary equipment or racks outside of their pod but hot air capture index is not used as a performance metric in this case. Instead row coolers use a close-coupled cooling process described in this paper. Understanding these principles helps to explain the three misconceptions described in this paper and provides a foundation for effective deployment of row-based cooling.