Patent attributes
Systems and methods for cooling computing devices in a data center and measuring airflow are disclosed. The computing devices have cooling fans that can have their fan speed set by management instructions. The devices are mounted in racks between cold aisles and hot aisles and are connected via network switches. The computing devices are oriented so that their cooling fans operate to exhaust waste heat to one side of the rack. Measurement instructions are sent to selected computing devices to cause them to go into a lower power state that reduces or stops computational work and reduces electrical power to the cooling fan so that the fan does not spin based on the electromotive force and can instead spin in an opposite direction based on ambient airflow caused by the difference in air pressure from the hot aisle to the cold aisle.
