System and method for thermal control in a chassis
AssigneeDell Products L.P.
InventorsRamsundar Govindarajan, Venkatesh Ramamoorthy, Dinesh Kunnathur Ragupathi
Life of this patent
Estimating the term…
Abstract
A method of thermal control in a chassis is presented. An example method of thermal control can include each of one or more blades reporting a requested fan blade speed to a CMC controller where the CMC controller performs an auction of the requested fan blade speed, determines a high value and assigning a corresponding active blade, and reporting the high value to the blades. The active blade then provides fan speed alerts while the passive blades provide fan speed alerts only when the new fan speed request exceeds the high value.
Claims20
A chassis management controller (CMC) in a chassis, the CMC comprising:
- a processor executing instructions to perform a method comprising:
- receiving a first requested fan speed from a first blade of the chassis;
- receiving a second requested fan speed from a second blade of the chassis;
- determining the first requested fan speed as a highest requested fan speed when the first requested fan speed is higher than the second requested fan speed;
- designating the first blade as an active blade;
- reporting the highest requested fan speed to the first and second blades;
- and
- providing a fan speed alert to the first and second blades when the first blade requests a third requested fan speed lower than the highest requested fan speed or the second blade requests a fourth requested fan speed higher than the highest requested fan speed.
A method of thermal control by a chassis management controller (CMC), the method comprising:
- receiving, by the CMC, a first requested fan speed from a first blade of a chassis, wherein the CMC is in the chassis;
- receiving, by the CMC, a second requested fan speed from a second blade of the chassis;
- determining, by the CMC, the first requested fan speed as a highest requested fan speed when the first requested fan speed is higher than the second requested fan speed;
- designating the first blade as an active blade;
- reporting, by the CMC, the highest requested fan speed to the first and second blades;
- and
- providing a fan speed alert to the first and second blades when the first blade requests a third requested fan speed lower than the highest requested fan speed or the second blade requests a fourth requested fan speed higher than the highest requested fan speed.
Dependencies are inferred from the claim text.