Non-Volatile Memory Controller Partial Command Execution
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Solution Overview
Problem
Existing non-volatile memory systems face challenges in efficiently managing read/write command granularity, leading to significant computational resource usage and potential system performance degradation due to the need for precise determination of data amounts and mapping between logical and physical addresses.
Innovation Solution
Implementing a controller that allows partial execution of read/write commands issued by the host, enabling the device to dynamically adjust based on available resources and memory conditions, returning a breakpoint and partial completion status to facilitate further commands and optimize resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the host determines read/write command granularity to conform to computational resources and non-volatile memory conditions, then the data storage efficiency is improved, but the computational resource consumption increases significantly
Solution Approach 1:
The patent introduces a controller as an intermediary between the host and non-volatile memory. The controller assumes the burden of determining read/write command granularity and managing memory conditions, while the host simply issues commands. This mediator approach resolves the contradiction by shifting computational workload from the host to the controller, improving data storage efficiency without significantly increasing host computational resource consumption.
Solution Approach 2:
The controller performs self-service by autonomously determining optimal read/write command granularity based on its internal assessment of non-volatile memory conditions. Instead of requiring the host to continuously analyze and adjust command parameters, the controller independently manages its own operation optimization, thereby improving storage efficiency while minimizing host computational overhead.
2Adaptability or versatility
If the host continuously monitors and adjusts read/write command parameters according to memory conditions, then the system adaptability is improved, but the operational complexity increases
Solution Approach 1:
The controller autonomously monitors non-volatile memory conditions and automatically adjusts read/write command parameters without requiring host intervention. This self-service mechanism maintains high system adaptability to changing memory conditions while significantly reducing operational complexity on the host side, as the host need not implement complex monitoring and adjustment logic.
Solution Approach 2:
The controller implements internal feedback loops to continuously monitor non-volatile memory status and adjust command parameters accordingly. This feedback mechanism enables the system to adapt to changing conditions automatically, improving adaptability while keeping the host operation simple, as the feedback processing is handled entirely within the controller.
3Adaptability or versatility
If partial execution of read/write commands is implemented, then the flexibility and resource management are improved, but the command processing complexity increases
Solution Approach 1:
The patent implements segmentation by dividing read/write commands into smaller executable units that can be partially executed. The controller can process commands in segments, allowing flexible resource management and interruption/resumption capabilities. This segmentation approach improves operation flexibility while managing complexity through structured command breakdown rather than monolithic processing.
Solution Approach 2:
The controller dynamically adjusts command execution based on real-time resource availability and memory conditions. Rather than rigidly executing complete commands or abandoning them entirely, the system dynamically determines the optimal execution extent, enabling flexible resource management. This dynamic approach improves adaptability while the controller manages the processing complexity internally.
Data Source
AI summary
A data storage device capable of just partially executing a read/write command issued by a host is disclosed. The data storage device uses a controller to perform a partial execution of a first read/write command issued by the host, and returns a breakpoint of the first read/write command to the host and returns information that the first read/write command is in a partial completion status to the host to drive the host to further issue a second read/write command. In this manner, fewer computational resources are required in determining read/write command granularity.