Server Cooling Domain Detection Using Thermal Resistance Feedback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Information handling systems, such as servers, face challenges in efficiently detecting and managing alternate cooling systems, which can lead to overheating and inefficient power usage due to varying thermal resistance across components.
Innovation Solution
A system and method that utilize temperature sensors and power sensors to calculate thermal resistance for each component, determining its cooling domain and adjusting cooling control settings, including fan control and power capping, to optimize cooling based on whether components are in air-cooled, liquid-cooled, or failure domains.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the system uses multiple cooling methods (air or liquid) for different components, then cooling efficiency is improved, but the complexity of detecting and managing the cooling system increases
Solution Approach 1:
The system continuously monitors temperature and power consumption of each component, calculates thermal resistance, and uses this feedback to automatically determine cooling domains and adjust cooling control settings, resolving the complexity of managing multiple cooling methods through automated closed-loop control
Solution Approach 2:
The system performs self-detection of cooling domains by automatically calculating thermal resistance from temperature and power sensor data without requiring external intervention, enabling the system to autonomously manage its own cooling configuration
2Measurement precision
If the system calculates thermal resistance for each component to determine cooling domains, then cooling management precision is improved, but the computational overhead and detection complexity increase
Solution Approach 1:
The system uses temperature sensors and power sensors as intermediary measurement devices to indirectly determine thermal resistance and cooling domains, avoiding direct complex measurements while achieving precise cooling domain classification through readily available sensor data
3Use of energy by moving object
If the system disables unnecessary fans and reallocates power based on cooling domain detection, then energy efficiency is improved, but the risk of overheating increases if detection is inaccurate
Solution Approach 1:
The system continuously monitors temperature and adjusts cooling control settings based on real-time thermal resistance calculations, providing feedback control that prevents overheating while optimizing power consumption by disabling fans only when thermal conditions confirm adequate cooling
Solution Approach 2:
The system performs preliminary detection of cooling domains and calculates thermal resistance before making cooling control adjustments, ensuring that fan disabling and power reallocation decisions are made only after confirming adequate cooling capacity through pre-assessment
Data Source
AI summary
An information handling system includes a plurality of components, and a controller. The controller determines a separate thermal resistance for each of the components, categorizes each component into one of a plurality of cooling domains based on the thermal resistance of the component and an amount of air flow around the component, and adjusts cooling controls for each of the components based on the respective cooling domain of the component.