Storage Device Multi-Address Read Command Parsing
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Solution Overview
Problem
Existing storage devices struggle to efficiently perform read operations on multiple logical addresses simultaneously, leading to inefficiencies in data retrieval.
Innovation Solution
A storage device and method that include a memory controller capable of receiving a read command with a basic header segment, a transaction specific field indicating a read operation for multiple logical addresses, and an extra header segment providing information on these addresses, allowing the device to perform a read operation across multiple logical addresses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a storage device performs read operations on multiple logical addresses using traditional methods, then each read operation must be executed sequentially, but this results in decreased data retrieval efficiency and increased operation time
Solution Approach 1:
The patent segments the read command structure into distinct functional parts: a basic header segment containing common command information, a transaction-specific field indicating multi-address operation, and an extra header segment containing the plurality of logical addresses. This segmentation allows the storage device to efficiently parse and execute multiple read operations simultaneously by clearly identifying the scope and parameters of each operation within the command structure.
2Productivity
If the read command structure is extended to include information on multiple logical addresses, then simultaneous read operations become possible, but the command structure complexity increases
Solution Approach 1:
The patent extracts the multi-address information into a separate extra header segment that is appended to the basic read command structure. This extraction allows the core command structure to remain relatively simple while accommodating multiple logical addresses without fundamentally redesigning the entire command protocol. The transaction-specific field acts as a flag that triggers the interpretation of the extra header segment, maintaining clarity in the command parsing logic.
Data Source
AI summary
According to an embodiment of the present disclosure, a storage device may include a memory device, and a memory controller configured to receive a read command from an external host and control the memory device according to the read command, wherein the read command may include a basic header segment commonly included in commands transferred between the external host and the memory controller and including information indicating that the read command is a command for requesting data stored in the memory device, a transaction specific field including information indicating that the read command is a read command for at least two or more logical addresses, and an extra header segment including information on the at least two or more logical addresses.