SYSTEM AND METHOD TO IDENTIFY CRITICAL FPGA CARD SENSORS

• US 20200134118A1
• Filed: 10/26/2018
• Published: 04/30/2020
• Est. Priority Date: 10/26/2018
• Status: Active Grant

• Current Assignee: Dell Products LP (Dell Technologies Inc.)
• Original Assignee: Dell Products LP (Dell Technologies Inc.)
• Inventors: Rahardjo, Johan, Gavvala, Pavan Kumar
• Granted Patent: US 10,853,547 B2
• Time in Patent Office: Days
• CPC Class Codes: G01K 7/021 Particular circuit arrangements G01K7/026, G01K7/12, G01K7/14 take precedence
• CPC Class Codes: G06F 1/206 comprising thermal management
• CPC Class Codes: G06F 30/34 for reconfigurable circuits, e.g. field programmable gate arrays [FPGA] or programmable logic devices [PLD]

Abstract

Embodiments are described for identifying critical sensors of a device, such as a FPGA (Field Programmable Gate Array) card, installed within an IHS (Information Handling System). A remote access controller identifies temperature sensors provided by the device and determine alert level thresholds for each of the sensors. The temperature sensors are ranked based on the respective ranges of the alert level thresholds. A first portion of the temperature sensors with the smallest ranges of alert level thresholds are assigned to a first ranked list. Readings from the temperature sensors are monitored and temperature sensors indicating temperature sensor readings rising faster than a first threshold are assigned to a second ranked list. A portion of the temperature sensors in the first ranked list and a portion of the temperature sensors in the second ranked list are designated for use by an airflow cooling system of the IHS.

Claims

1. A method for identifying critical sensors of a device installed within an IHS (Information Handling System), the method comprising:

identifying a plurality of temperature sensors provided by the device;

determining alert level thresholds for each of the plurality of temperature sensors;

ranking the temperature sensors based on ranges of the alert level thresholds of the respective temperature sensors;

assigning a first portion of the temperature sensors with the smallest ranges of alert level thresholds to a first ranked list;

monitoring temperature sensor readings generated by each of the plurality of temperature sensors;

assigning temperature sensors indicating temperature sensor readings rising faster than a first threshold to a second ranked list; and

designating a portion of the temperature sensors in the first ranked list and a portion of the temperature sensors in the second ranked list for use by the airflow cooling system of the IHS.

2. The method of claim 1, wherein the airflow cooling system utilizes the designated temperature sensors to provide closed-loop airflow cooling of the IHS.

3. The method of claim 1, wherein the alert level thresholds specify temperature thresholds for alert levels comprising a warning level, a critical level and a failure level.

4. The method of claim 3, wherein the range of the alert level thresholds of a temperature sensor comprises the difference between the warning level temperature threshold and the failure level temperature threshold.

5. The method of claim 1, wherein the sensor readings of the plurality of temperature sensors are monitored by a management controller of the device.

6. The method of claim 5, wherein the management controller transmits temperature readings to the remote management controller only for the sensors designated for use by the airflow cooling system.

7. The method of claim 1, wherein the device is an FPGA (Field Programmable Gate Array) card.

8. A system for identifying critical sensors of device installed within an IHS (Information Handling System), the system comprising:

a remote access controller configured to monitor operations of the IHS, the remote access controller configured to;

identify a plurality of temperature sensors provided by the device;

determine alert level thresholds for each of the plurality of temperature sensors;

rank the temperature sensors based on the ranges of the alert level thresholds of the respective temperature sensors;

assign a first portion of the temperature sensors with the smallest ranges of alert level thresholds to a first ranked list;

monitor temperature sensor readings generated by each of the plurality of temperature sensors;

assign temperature sensors indicating temperature sensor readings rising faster than a first threshold to a second ranked list; and

designate a portion of the temperature sensors in the first ranked list and a portion of the temperature sensors in the second ranked list for use by the airflow cooling system of the IHS; and

a management controller of the device configured to;

forward temperature readings generated by the designated portion of temperature sensors to the remote access controller.

9. The system of claim 8, wherein the airflow cooling system utilizes the designated temperature sensors to provide closed-loop airflow cooling of the IHS.

10. The system of claim 8, wherein the alert level thresholds specify temperature thresholds for alert levels comprising a warning level, a critical level and a failure level.

11. The system of claim 10, wherein the range of the alert level thresholds of a temperature sensor comprises the difference between the warning level temperature threshold and the failure level temperature threshold.

12. The system of claim 8, wherein the temperature sensor readings of the plurality of temperature sensors are monitored by the management controller and only the readings for the designated portion of the temperature sensors are transmitted to the remote access controller.

13. The system of claim 8, wherein the device is an FPGA (Field Programmable Gate Array) card.

14. A remote access controller configured for identifying critical sensors of device installed within an IHS (Information Handling System), the remote access controller comprising:

one or more processors; and

a memory device coupled to the one or more processors, the memory device storing computer-readable instructions that, upon execution by the one or more processors, cause the remote access controller to;

identify a plurality of temperature sensors provided by the device;

determine alert level thresholds for each of the plurality of temperature sensors;

rank the temperature sensors based on the ranges of the alert level thresholds of the respective temperature sensors;

assign a first portion of the temperature sensors with the smallest ranges of alert level thresholds to a first ranked list;

monitor temperature sensor readings generated by each of the plurality of temperature sensors;

assign temperature sensors indicating temperature sensor readings rising faster than a first threshold to a second ranked list; and

designate a portion of the temperature sensors in the first ranked list and a portion of the temperature sensors in the second ranked list for use by the airflow cooling system of the IHS.

15. The remote access controller of claim 14, wherein the airflow cooling system utilizes the designated temperature sensors to provide closed-loop airflow cooling of the IHS.

16. The remote access controller of claim 14, wherein the alert level thresholds specify temperature thresholds for alert levels comprising a warning level, a critical level and a failure level.

17. The remote access controller of claim 16, wherein the range of the alert level thresholds of a temperature sensor comprises the difference between the warning level temperature threshold and the failure level temperature threshold.

18. The remote access controller of claim 14, wherein the temperature sensor readings of the plurality of temperature sensors are monitored by a management controller of the device.

19. The remote access controller of claim 18, wherein the management controller transmits temperature readings to the remote management controller only for the sensors designated for use by the airflow cooling system.

20. The remote access controller of claim 14, wherein the device is an FPGA (Field Programmable Gate Array) card.