Multiplexing Serial Backplane Communication for Faster Boot
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Solution Overview
Problem
Information handling systems face challenges in efficiently processing and communicating data across multiple backplanes, leading to delays and dependencies in booting and configuration processes due to complex inventory management and communication protocols.
Innovation Solution
The system employs a single serial interface with multiplexers to detect commencement signals from backplanes, configure multiplexers to select appropriate couplings, and provide information to and receive information from backplanes, utilizing RS-232 compliant break sequences and inventory data to streamline communication and configuration, thereby reducing dependencies and accelerating boot processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single serial interface is used to communicate with multiple backplanes, then device complexity is reduced, but communication speed and data retrieval efficiency deteriorate
Solution Approach 1:
The system segments the communication process into distinct phases: detection phase where commencement signals are monitored, configuration phase where multiplexers are set up, and data transfer phase where information is exchanged. This segmentation allows the single serial interface to efficiently manage multiple backplanes by dedicating specific time windows to each backplane, thereby maintaining simplicity while preserving data retrieval efficiency.
Solution Approach 2:
The system performs preliminary actions by detecting commencement signals from backplanes before actual data communication begins. The multiplexers are pre-configured to select appropriate couplings based on which backplane is ready to communicate. This preliminary setup ensures that when data transfer is needed, the communication path is already established, eliminating delays and maintaining high efficiency despite using a single serial interface.
2Device complexity
If multiple backplanes are serviced sequentially through a single serial interface, then device complexity is reduced, but booting time increases
Solution Approach 1:
The system implements periodic action by continuously monitoring for commencement signals from multiple backplanes and switching between them in regular intervals. The multiplexers periodically switch the serial interface connection to different backplanes based on which ones have signaled readiness. This periodic switching allows the system to service multiple backplanes efficiently without requiring complex parallel interfaces, thereby reducing booting time while maintaining interface simplicity.
3Manufacturing precision
If comprehensive inventory data is collected from all backplanes, then system configuration accuracy is improved, but communication overhead and processing time increase
Solution Approach 1:
The system extracts only the necessary inventory data from each backplane based on the multiplexer's current selection and the specific communication needs. Rather than continuously collecting comprehensive data from all backplanes simultaneously, the system selectively retrieves information from the currently active backplane connection. This extraction approach maintains configuration accuracy by gathering required data while significantly reducing communication overhead and processing time.
Data Source
AI summary
In one or more embodiments, one or more systems, methods, and/or processes may detect commencement signals from respective backplanes. For each backplane of the backplanes, the one or more systems, methods, and/or processes may further configure a multiplexer to select a coupling associated with the backplane; may further provide, via a serial interface and the multiplexer, first information to the backplane; may further receive, via the serial interface, second information from the backplane; may further store the second information from the backplane; may further provide at least a portion of the second information to at least one of information handling system firmware, an operating system, and a boot management controller; and may further boot the operating system with the at least the portion of the second information associated with at least one of the backplanes.