Management Controller Remote POST Halt Recovery

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Solution Overview

Problem

Information handling systems face challenges in efficiently recovering from system halts during initialization due to faulty or misconfigured resources, as existing self-test mechanisms lack effective remote management and configuration capabilities.

Innovation Solution

The implementation of a management controller (MC) that communicates with a management system to log and respond to POST diagnostic codes, allowing for out-of-band management and remote configuration of resources, enabling the system to recover from errors and continue initialization processes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If traditional self-test mechanisms are used during system initialization, then the system can detect errors, but the system cannot remotely recover from halts and requires manual intervention

Engineering Contradiction:

Improveautomated recovery capabilityVSAvoiduser intervention requirement

Core Design Contradiction:

Extent of automationVSEase of operation

Solution Approach 1:

The management controller is configured with automated response actions that enable the system to self-recover from POST halts without requiring manual user intervention. The controller automatically logs diagnostic codes, determines appropriate response actions from a configured list, and executes recovery procedures, allowing the system to service itself during initialization errors.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The management controller continuously monitors POST execution status and receives feedback about halt conditions. Based on this feedback, the controller automatically selects and executes appropriate response actions from a pre-configured list, creating a closed-loop control system that enables automated recovery from initialization errors.

Inventive Principle:

Principle #23Feedback

2Productivity

If manual intervention is required for system recovery, then error detection is simple, but system productivity and recovery speed are reduced

Engineering Contradiction:

Improvesystem recovery speedVSAvoidmanagement controller configuration

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

Response actions are pre-configured in the management controller before system initialization begins. The controller maintains a list of possible POST halt diagnostic codes and their corresponding response actions, allowing rapid automated recovery without requiring real-time manual configuration or complex decision-making during the recovery process.

Inventive Principle:

Principle #10Preliminary action

3Reliability

If remote management capabilities are added to enable automated recovery, then system reliability improves, but device complexity increases

Engineering Contradiction:

Improvesystem initialization reliabilityVSAvoidmanagement controller architecture

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The management controller serves as an intermediary component that bridges the BIOS/POST system and external management systems. It receives POST halt notifications, logs diagnostic information, and executes pre-configured response actions, thereby enabling remote management and improved reliability without requiring complex integration between the initialization system and external management infrastructure.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS9092404B2System and method to remotely recover from a system halt during system initialization

Publication Date: 2015.07.28 DELL PROD LP

AI summary

An information handling system includes a memory, a processor, and a management controller. The memory includes code to implement a power on self test (POST). The management controller operates to receive an indication that the POST has halted execution in response to a POST error, to log the indication and the POST error, and to send an input to the POST. The POST operates to receive the input and to continue execution based upon the input.