A kind of data storage method and device of solid-state disk based on bit flipping

Abstract

The invention discloses a method and device for storing data in a solid-state disk based on bit flipping, wherein the method includes: an initialization step: receiving a write request, and initializing a variable for storing a value in a memory; a data bit counting and flipping step: Statistical analysis is performed on the bit state in each basic unit of input, to determine whether to perform bit flip operation, set the corresponding flip flag bit, and perform corresponding operation to obtain the processed data; data encapsulation step: process the processed data according to The original data sequence is encapsulated, and the corresponding flip flags are encapsulated into page flags in order; data writing step: write the encapsulated data and page flags into the data area and the spare of the storage medium respectively. area. The method proposed by the present invention aims at different probabilities of leaking electrons in different states of the storage unit in the solid-state disk, and reduces the state quantity of volatile electrons in the solid-state disk through the operation of bit flipping, so as to improve the read-write performance, service life and reliability of the solid-state disk .

Description

technical field [0001] The invention relates to the field of computer storage, in particular to a bit flip-based solid state disk data storage method and device. Background technique [0002] With the development of computer technology and economic society, social production and life have produced huge information and data, how to store these data stably and reliably is very important. Traditional mechanical disks have disadvantages such as slow reading speed, large size, and low power consumption. With the rapid development of non-volatile storage technologies such as NAND flash memory, storage devices have achieved improvements in performance, reliability, and cost. Amazing development. [0003] Solid state drives are one of the most commonly used storage devices today and are gradually replacing traditional magnetic disks. With the advancement of industrial technology, the number of storage bits per unit area is gradually increasing, and the manufacturing cost is furthe...

AI Technical Summary

Problems solved by technology

Stability refers to the fact that the data stored in the solid-state disk can be kept consistent without errors beyond the decoding capability of the error-correcting code; the service life is often determined by the number of "erasing / programming". After several erasing operations, the electrons in the floating gate will easily leak, causing data errors

Images