SSD Life Extension via Adaptive Data Compression
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Solution Overview
Problem
Existing SSD management techniques, such as throttling, either fail to extend the life of solid state drives (SSDs) effectively or come with performance drawbacks, and there is a lack of methods to uniformly manage SSD life across different vendors and types.
Innovation Solution
An information processing device that measures write data and operation time, calculates life threshold and determination values, and compresses data when necessary to extend SSD life without using throttling, utilizing a solid state drive control unit and support unit to determine and implement data compression based on life parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If throttling is used to control IO operation frequency, then SSD life is extended, but system performance deteriorates
Solution Approach 1:
The patent applies preliminary action by compressing data before it is written to the SSD. The compression is performed in advance on data that is about to be written, thereby reducing the write volume that will stress the SSD. This prevents the need for throttling during operation, as the reduced write volume naturally extends SSD life without impacting system performance during normal IO operations
Solution Approach 2:
The patent introduces data compression as an intermediary mechanism between the data source and the SSD. Instead of directly controlling IO frequency (throttling), the system uses compression to reduce the amount of data that needs to be written. This intermediary approach extends SSD life by reducing write stress while maintaining normal IO operation rates, thus avoiding performance deterioration
2Duration of action of stationary object
If data compression is applied to extend SSD life, then write data volume is reduced, but processing overhead increases
Solution Approach 1:
The system performs data compression in advance before data is written to the SSD. By compressing data beforehand, the actual write operation to the SSD involves less data, thereby extending SSD life. The compression processing time is incurred before the critical write operation, making the trade-off acceptable as it prevents future write amplification and extends device lifespan
Solution Approach 2:
The patent changes the parameter of data representation by applying compression algorithms. Instead of writing raw data, the system transforms data into a compressed format, changing its physical state from uncompressed to compressed. This parameter change reduces the volume of data written to the SSD, extending its life while the processing overhead is managed as a one-time transformation cost
Data Source
AI summary
An information processing device according to the present invention includes: a solid state drive control unit that measures a quantity of write data to a solid state drive and an operation time of the solid state drive, and compresses write data; and a solid state drive support unit that determines whether or not the compression is required, on the basis of a life threshold value that is calculated on the basis of a life of the solid state derive and a total quantity of the write data to the solid state drive, and a life determination value that is calculated on the basis of the quantity of the write data and the operation time, and instructs the solid state drive control unit to compress the write data when the compression is required.