Memory Controller Shutdown Acknowledgment for Failure Analysis
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In complex computer application scenarios, memory systems fail to respond to commands post-shutdown signals, leading to difficulty in failure analysis and increased RMA rates due to suspected firmware issues, affecting system stability and user experience.
Innovation Solution
A memory controller with a shutdown preparation operation that includes saving data, aborting commands, and updating a status register, while a first processing unit sends a response signal upon command receipt to confirm shutdown preparation execution, thereby facilitating quick failure analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the memory system executes shutdown preparation operation without responding to subsequent commands, then power consumption is reduced and shutdown is achieved, but failure analysis becomes difficult and system reliability appears to deteriorate
Solution Approach 1:
The patent implements a feedback mechanism where the memory controller sends an acknowledgment signal to the host after receiving a shutdown command, confirming that the shutdown preparation operation has been initiated. This feedback allows the host to distinguish between a normal shutdown state and a failure state, resolving the contradiction by maintaining system reliability through status communication while achieving power savings through the shutdown operation.
Solution Approach 2:
The patent performs preliminary actions by completing data saves and aborting pending commands before entering the shutdown state. This preliminary execution of necessary operations ensures that the system is in a known good state before power consumption is reduced, maintaining reliability while achieving energy savings during the actual shutdown phase.
2Productivity
If the memory system does not respond to commands after shutdown signal, then shutdown is achieved, but failure analysis difficulty increases
Solution Approach 1:
The acknowledgment signal sent by the memory controller serves as feedback that confirms the shutdown preparation operation has been initiated. This feedback mechanism enables the host to verify that the shutdown process is proceeding normally, making it easier to detect and analyze failures by distinguishing between expected non-response during shutdown and actual system failures.
Solution Approach 2:
The patent introduces an intermediary acknowledgment signal that mediates between the shutdown command and the complete shutdown state. This intermediate status indicator allows the host to understand the memory controller's state without requiring continuous command response, thereby maintaining shutdown efficiency while improving detectability of the shutdown process.
3Reliability
If firmware issues are suspected due to lack of response, then system stability is maintained through caution, but RMA rates increase due to unnecessary returns
Solution Approach 1:
The acknowledgment signal provides clear feedback that the shutdown preparation operation has been initiated, eliminating ambiguity about system state. This reduces unnecessary firmware suspicion and prevents premature RMA submissions, thereby maintaining system stability while reducing RMA process complexity by providing objective status information.
Solution Approach 2:
The memory controller autonomously manages the shutdown process and communicates its status through the acknowledgment signal, enabling the host to make informed decisions without requiring complex diagnostic procedures. This self-service approach reduces unnecessary RMAs by providing clear status information that prevents misinterpretation of the shutdown state.
Data Source
AI summary
Examples of the present disclosure provide memory controllers and electronic apparatuses, and operation methods thereof to execute a shutdown preparation operation. In some examples, the shutdown preparation operation analyzes why the memory controller does not respond to commands of a host upon issuance of a shutdown signal. The processor may execute a shutdown preparation operation based on the shutdown signal. The shutdown preparation operation may include stopping running some of processing units in the processor and outputting a response signal by a first processing unit that continues to run in the processor. The response signal is indicates that the processor has executed the shutdown preparation operation. Due to the execution of the shutdown preparation operation, if a command is received, the processor sends the response signal to the host. Accordingly, in some examples, failure analysis based on receipt of the response signal at the host can be conducted.