The current invention addresses airflow mismatch by employing flow curves testing methods that describe the exact aerodynamic behavior of the IT.
About
The current invention addresses airflow mismatch by employing flow curves testing methods that describe the exact aerodynamic behavior of the IT. The passive flow curve method (PFC) describes the passive airflow behavior of the chassis while the IT is not on or where the IT does not have fans. The active flow curve method (AFC) collapses the IT internal resistance and effective fans into one. The resulting curve can be fit to server fan speed, and thus can be incorporated into facility-level control equipment that adjusts the airflow through the server based on the input pressure and fan speed.
Key Benefits
• The percentage of airflow surplus or reduction is reported to the controller. • The controller modulates the cooling airflow and the containment of artificial leakage. • Under airflow reduction, the controller can modulate an increase in cooling airflow, open leakage paths to maintain reliable operation, and avoid CPU throttling. • The controller can modulate smart louvers that are mounted at the IT outlets.