Caching Groups by Write Count for Storage Efficiency
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Solution Overview
Problem
Current data storage systems face inefficiencies in cache memory utilization, particularly in forming caching groups based on write counts, which affects read and write speed and data continuity, leading to suboptimal performance in handling increasing data volumes.
Innovation Solution
A data storage device and method that groups data into caching groups based on write counts, where each caching group includes a requested data block and additional blocks with the same write count, allowing for intelligent caching and improved data processing performance by prioritizing frequently accessed data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If data is cached individually in units of single data blocks, then caching flexibility is maintained, but cache memory utilization efficiency deteriorates
Solution Approach 1:
The patent merges multiple data blocks into caching groups based on write count similarity. When forming a caching group, the system combines a target data block with other data blocks that have the same or similar write counts, thereby utilizing cache memory more efficiently through batch operations while maintaining adaptability through dynamic group formation based on write characteristics.
2Speed
If caching groups are formed without considering write counts, then caching speed is improved, but data continuity deteriorates
Solution Approach 1:
The patent applies local quality by differentiating caching group formation based on write count characteristics. Data blocks with similar write counts are grouped together, creating locally optimized caching groups that maintain data continuity patterns. This ensures that frequently accessed data (high write count) is cached together, preserving access patterns and improving both caching speed and data continuity.
3Reliability
If all data blocks are cached regardless of write count, then data availability is improved, but cache memory efficiency deteriorates
Solution Approach 1:
The patent changes the parameter basis for caching from uniform treatment to write-count-based differentiation. By using write count as a classification parameter, the system forms caching groups that prioritize data with higher write counts (more frequently accessed). This ensures data availability for frequently accessed blocks while improving cache memory efficiency by avoiding wasteful caching of rarely accessed data.
Data Source
AI summary
A data storage device may include a first memory apparatus including a plurality of data blocks having data classified in units of data blocks; a second memory apparatus in communication with the first memory apparatus to store data cached from the first memory apparatus; and a controller in communication with the first memory apparatus and the second memory apparatus. The controller is configured to perform a caching group based caching operation by controlling the first memory apparatus to cache data from the first memory apparatus to the second memory apparatus on a caching group basis. Each caching group includes a first data block requested for caching and one or more other data blocks having the same write count as a write count of the first data block.