Chassis-Level Power Capping for Modular Information Handling Systems
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Solution Overview
Problem
Existing power management approaches for information handling systems do not effectively account for the shared infrastructure power consumption in modular systems, leading to inefficient power allocation and thermal control.
Innovation Solution
A system with a controller that determines shared infrastructure power consumption and allocates it among modular information handling systems, setting host-level power limits for each to manage power usage efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If existing power management approaches are used that do not account for shared infrastructure, then individual information handling system power limits can be set, but power allocation becomes inefficient and does not reflect actual power consumption
Solution Approach 1:
The controller continuously monitors shared infrastructure power consumption and uses this feedback to dynamically adjust host-level power limits. The system measures actual power drawn by shared components and feeds this information back to recalculate and update power allocation for each modular information handling system, ensuring power limits reflect real-time consumption patterns
Solution Approach 2:
The controller acts as an intermediary between the shared infrastructure and individual modular information handling systems. It mediates power allocation by calculating each system's fair share of shared infrastructure power consumption and setting appropriate host-level power limits, preventing any single system from monopolizing shared power resources
2Temperature
If power caps are applied to individual information handling systems without considering shared infrastructure, then thermal control can be achieved, but overall system power management becomes inaccurate
Solution Approach 1:
The system merges the power measurement and control of individual modular information handling systems with the power consumption of shared infrastructure. The controller combines host-level power limits with allocated shared infrastructure power consumption to establish accurate chassis-level power management, ensuring thermal control accounts for total system power usage
3Device complexity
If shared infrastructure power consumption is not allocated among modular systems, then system complexity is reduced, but power management precision deteriorates
Solution Approach 1:
The controller segments shared infrastructure power consumption into allocable portions for each modular information handling system. By dividing the shared power consumption based on usage or configuration, the system achieves precise power limit setting without requiring complete redesign of the power management architecture
Solution Approach 2:
The system dynamically changes power limit parameters for each host based on shared infrastructure consumption measurements. The controller adjusts host-level power limits as a function of measured shared infrastructure power draw, enabling precise power management through parameter adaptation rather than structural complexity
Data Source
AI summary
In accordance with embodiments of the present disclosure, a system may include a chassis comprising a plurality of slots, each of the plurality of slots configured to receive a respective modular information handling system, a shared infrastructure comprising a plurality of components which are shared by modular information handling systems received in the slots, and a controller communicatively coupled to the slots and configured to determine a shared infrastructure power consumption indicative of power consumed by the shared infrastructure, allocate the shared infrastructure power consumption among modular information handling systems received in the slots, and set a respective host-level power limit for each of the modular information handling systems received in the slots, such that each modular information handling system consumes power in accordance with its respective host-level power limit.