Server Rack Power Management via Baseboard Controllers
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Solution Overview
Problem
Conventional server racks have limited power management functions due to their current power supply schemes, which restrict their ability to provide comprehensive power management capabilities.
Innovation Solution
The server rack incorporates a power management unit, application circuits, and baseboard management controllers, where one baseboard management controller operates in a master mode and others in slave mode, enabling them to collect and act on power management data to manage power output and prevent overloads, and also control application circuits based on operating information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single power supply is used to convert AC mains electricity into DC supply power for multiple servers, then the device complexity is reduced, but the power management functions are limited
Solution Approach 1:
The patent segments the power management system by introducing individual power management units for each server node, allowing each unit to independently manage power conversion and monitoring. This segmentation enables comprehensive power management functions while maintaining manageable system complexity through modular architecture
Solution Approach 2:
The patent introduces baseboard management controllers as intermediary devices that collect power management data from individual power management units and provide centralized monitoring and control. This intermediary layer enables enhanced power management functions without requiring direct complex interactions between all system components
2Adaptability or versatility
If individual power management units are introduced for each server, then power management functions are enhanced, but the device complexity increases
Solution Approach 1:
The patent designs universal power management units that can be applied to each server node with the same functional capabilities. Each unit provides power conversion, monitoring, and control functions, allowing standardized implementation across the server rack while maintaining comprehensive power management capabilities
Solution Approach 2:
The patent implements feedback mechanisms where power management units continuously monitor power parameters and communicate with baseboard management controllers. This feedback loop enables real-time power management decisions, overload prevention, and system-wide power optimization without requiring complex manual intervention
Data Source
AI summary
A server rack includes a plurality of servers, each of which includes: a power management unit operable to convert a DC input voltage into at least one DC output voltage to output at least one type of DC output power; at least one application circuit for being respectively powered by the at least one type of DC output power; and a baseboard management controller cooperating with the power management unit to provide power management data. One of the baseboard management controllers of the servers is for receiving the power management data respectively from the other one(s) of the baseboard management controllers, and controls the power management units of the servers for power management of the servers based on the power management data.