Dynamic data compression method for solid-state disc storage system

Abstract

The invention discloses a dynamic data compression method for a solid-state disc storage system and relates to the field of computer storage. The redundancy characteristic of data in the storage system is fully utilized, and through a dynamic data compression technology, the redundant information is reduced and the written data quantity is reduced, so that a problem of asymmetry of read-write performance of a solid-state disc is relieved while the space utilization and reliability of the solid-state disc are improved. A compression bit chart and three function modules, namely a load monitoring module, a data compression module and a data decompression module, are arranged on the solid-state disc storage system; and the method comprises a request type judging step, a data compression and writing step and a data decompression reading step. According to the current load state of the system, the written data is dynamically compressed, so that the service ability of the system is unaffected, the written data is fully compressed, more written data is reduced, and the performance and the reliability of a solid-state disc storage device are improved.

Description

Technical field [0001] The invention relates to the field of computer storage, in particular to a dynamic data compression method of a solid state disk storage system. Background technique [0002] As a mainstream storage medium, disks have been widely used in personal computers and enterprise-level data storage, but their mechanical characteristics limit the rapid improvement of their read and write performance. Disk-based storage devices have gradually become the performance "wall of storage systems." ". At present, flash-based solid-state disks have become a powerful substitute for magnetic disks, and have received extensive attention from academia and industry. Compared with magnetic disks, flash-based solid-state disks are semiconductor storage media without mechanical parts. They have the advantages of durability, shock and drop resistance, no noise, low power consumption, large operating temperature range, and high random small read performance; but solid state The capac...

AI Technical Summary

Problems solved by technology

However, the inherent write amplification problem, limited erasure times, and asymmetric read and write speeds of SSD-based storage systems have negative impacts on the performance of SSD storage systems that cannot be ignored.

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