Turbo Write Buffer Segmentation for Fast NVMe Storage
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Solution Overview
Problem
Current storage devices face limitations in achieving fast write and read operations, particularly in nonvolatile memory systems, where existing technologies do not efficiently utilize buffer areas to enhance performance.
Innovation Solution
A storage device architecture that includes a nonvolatile memory device with distinct areas for turbo write and read operations, managed by a memory controller, which prioritizes data storage and movement between these areas to optimize performance through a turbo write buffer and user storage buffer configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single buffer area is used for both turbo write and normal write operations, then device complexity is reduced, but write speed performance deteriorates
Solution Approach 1:
The nonvolatile memory device is divided into multiple buffer areas (first buffer area and second buffer area) with different write speed capabilities. The first buffer area is configured for turbo write operations with higher write speeds, while the second buffer area is configured for normal write operations. This segmentation allows the system to achieve high write speeds when needed without compromising overall device complexity management.
2Productivity
If multiple buffer areas are implemented for different write speeds, then write speed performance is improved, but device complexity increases
Solution Approach 1:
The memory controller dynamically selects which buffer area to use based on the write operation requirements. For turbo write operations, the controller directs data to the first buffer area, while for normal write operations, it uses the second buffer area. This dynamic allocation strategy enables the system to achieve high write speeds when needed while managing complexity through intelligent control rather than static configuration.
3Productivity
If data is preferentially written to the first buffer area for turbo operations, then turbo write performance is improved, but storage capacity utilization deteriorates
Solution Approach 1:
The system implements partial action by providing a first buffer area specifically for turbo write operations rather than making the entire buffer area suitable for both turbo and normal operations. This allows the first buffer area to be optimized for high-speed writes, while the second buffer area handles normal writes, ensuring that storage capacity is efficiently utilized across different operation types without compromising turbo performance.
Data Source
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AI summary
A storage device includes a nonvolatile memory device that includes a first region including memory cells configured to store n-bit data and a second region including memory cells configured to store m-bit data and a memory controller, where n and m are natural numbers and n is less than m. The first region includes a first area and a second area, and the second region includes a third area. The memory controller is configured to perform one of a turbo write operation on the first area or the second area and a normal write operation on the third area, and configured to perform one of a turbo read operation on the first area or the second area and a normal read operation on the third area.