Power Topology Detection in Rack-Mounted Computer Systems
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Solution Overview
Problem
Ensuring that redundant power supplies in rack-mounted computer systems and blade server enclosures are correctly coupled to intended power sources is challenging due to the complexity of power and data cables, often leading to catastrophic failures when AC sources are lost.
Innovation Solution
The system integrates power and data conductors in power cords and connectors, allowing power distribution units to communicate with computer systems to determine and manage power topologies, ensuring operational power is drawn from redundant sources and preventing overloading by managing power distribution through a management computer system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple power cables and data cables are used to provide redundant power supplies to rack-mounted computer systems, then reliability is improved, but device complexity increases and makes it difficult to verify correct coupling
Solution Approach 1:
The patent implements a feedback mechanism where the management module receives status information from power supplies and computer systems about their coupling state. Current indicators provide feedback on power flow, and the management module uses this information to verify correct coupling and generate alerts if misconfiguration is detected, thereby maintaining reliability while managing the complexity of multiple cables.
Solution Approach 2:
The patent introduces an intermediary management module that acts as a mediator between power supplies and computer systems. This management module coordinates power distribution, monitors coupling status, and verifies correct connections, thereby simplifying the verification process despite the presence of multiple complex power and data cables.
2Ease of operation
If power cable routing is not verified, then ease of operation is improved, but reliability deteriorates due to undetected routing errors
Solution Approach 1:
The patent implements preliminary verification action where the management module proactively checks power cable routing and coupling status before power failures occur. By performing verification in advance through status information exchange and current monitoring, the system ensures correct coupling without requiring complex manual verification procedures during setup.
Solution Approach 2:
The system uses feedback from current indicators and status information to automatically verify power cable routing correctness. The management module receives continuous feedback about power flow and coupling status, enabling it to detect and alert about routing errors without requiring manual verification, thus maintaining both ease of operation and reliability.
3Device complexity
If power topology is not monitored, then device complexity is reduced, but loss of information occurs regarding power distribution status
Solution Approach 1:
The patent implements a feedback-based power topology monitoring system where the management module receives status information from power supplies and computer systems. This feedback mechanism provides continuous information about power distribution status, coupling correctness, and power flow without requiring complex monitoring hardware, thereby maintaining low device complexity while preventing information loss.
4Measurement precision
If current indicators are implemented to monitor power supply output, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent introduces an intermediary management module that consolidates monitoring functions. Rather than implementing complex monitoring in each power supply, the management module acts as a central intermediary that receives status information and current indicator data, processes it centrally, and coordinates power distribution, thereby achieving precise monitoring while minimizing overall system complexity.
Data Source
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AI summary
Determining power topology of a computer system. At least some of the illustrative embodiments are methods including communicating with a first computer system of a plurality of computer systems mounted in a rack (the communicating through dedicated communication conductors integral with a first cord carrying operational power to first computer system), communicating with a second computer system of the plurality of computer systems (the communicating through dedicated communication conductors integral with a second cord carrying operational power to first computer system), determining a power topology regarding the plurality of computer systems based on the communicating, and displaying an indication of the power topology.