Backplane Logical Identifier Assignment via Voltage Profiling
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Solution Overview
Problem
Information handling systems lack an efficient method to enumerate logical identifiers for backplanes, leading to inconsistencies and difficulties in identifying and addressing individual backplanes and drive slots within the system.
Innovation Solution
A method where each backplane generates inventory information including attributes such as voltage profiles and cable configurations, which is sent to a Baseboard Management Controller (BMC) to determine backplane topology and assign logical identifiers, ensuring consistent identification and addressing of backplanes and drive slots.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If hardcoded identifiers are used for backplanes, then system configuration is simplified, but system adaptability and flexibility deteriorate
Solution Approach 1:
The backplane automatically generates and reports its own inventory information (voltage profiles, cable configurations, component attributes) to the BMC, enabling self-identification without hardcoded identifiers. This allows the system to adapt to different backplane configurations while maintaining automated management.
Solution Approach 2:
The system uses dynamic parameters (voltage profiles, cable configurations, component attributes) to uniquely identify backplanes instead of static hardcoded identifiers. These parameters can change based on the actual hardware configuration, providing both flexibility and automated identification.
2Device complexity
If no systematic method is used for identifier assignment, then device complexity is reduced, but measurement precision and identification accuracy deteriorate
Solution Approach 1:
The backplane reports its inventory information to the BMC, which uses this feedback to automatically determine the backplane topology and assign logical identifiers. This closed-loop feedback mechanism ensures accurate identification without complex manual assignment procedures.
Solution Approach 2:
The patent replaces manual or hardcoded identifier assignment with an automated electronic system that uses voltage profiling and attribute reporting. This substitution eliminates the need for complex mechanical or manual identification methods while improving accuracy.
3Measurement precision
If detailed inventory information is collected from each backplane, then backplane topology determination accuracy is improved, but loss of time and processing overhead increase
Solution Approach 1:
The backplane pre-generates its inventory information (voltage profiles, cable configurations, component attributes) before the BMC needs to identify it. This preliminary preparation reduces the time required for topology determination when the BMC processes the information.
Solution Approach 2:
The patent uses automated electronic voltage sampling and data reporting instead of manual inventory collection methods. This electronic substitution significantly reduces the time required to gather and process detailed backplane information while maintaining high accuracy.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables accurate and consistent logical identifier assignment for backplanes and drive slots, improving system management and reducing the need for hardcoded identifiers.
Implementation Method 1
sampling, by a backplane of the plurality of backplanes, a voltage associated with one or more components of the backplane
Implementation Method 2
sampling, by a backplane of the plurality of backplanes, a voltage associated with one or more cables communicably coupled to the backplane
Data Source
AI summary
In one embodiment, a method for enumerating logical identifiers for a plurality of backplanes of an information handling system includes: generating, by each of the plurality of backplanes, inventory information indicating a plurality of backplane attributes; sending, by each of the plurality of backplanes, the inventory information to a baseboard management controller; receiving, by the baseboard management controller, the inventory information from each of the plurality of backplanes; determining, by the baseboard management controller, a backplane topology of the information handling system based on the inventory information, the backplane topology indicating a backplane location for each of the plurality of backplanes; generating, by the baseboard management controller, a logical backplane identifier for each of the plurality of backplanes based on the backplane topology; and assigning, by the baseboard management controller, the logical backplane identifier to each of the plurality of backplanes.