Method for writing data into solid state drive and solid state drive

Abstract

Embodiments of the invention provide a method for writing data into a solid state drive (SSD) and the SSD. The SSD comprises a controller and a memory, wherein a storage medium of the memory comprises an NAND Flash and a non-volatile memory (NVM), and the NVM comprises a write region. The method comprises the steps of receiving a write operation request, wherein the write operation request comprises pre-written data; determining that the pre-written data is not stored in the write region; and writing the pre-written data into the write region. According to the embodiments of the invention, the pre-written data is written in the write region of the NVM, so that the accesses to the NAND Flash can be reduced, namely, the frequency of accessing the NAND Flash in the SSD is reduced, and the abrasion of the NAND Flash is reduced; moreover, due to the non-volatile characteristic of the NVM, data stored in the NVM is not lost under power failure, so that during power interruption, the SSD does not need to be powered by capacitors; and based on the reasons, the service life of the SSD is prolonged.

Description

technical field [0001] Embodiments of the present invention relate to storage technologies, and in particular to a method for writing data into a solid-state hard disk and the solid-state hard disk. Background technique [0002] Solid State Drives (SSD for short), referred to as solid disks, are widely used in servers, desktops, notebooks, mobile devices, game consoles, etc. [0003] Such as figure 1 As shown, SSD10 mostly adopts semiconductor NAND Flash14 as the storage medium of memory; and provides backup power through capacitor 15, so as to avoid data loss in memory 13 when power is off; receives the read and write operation request of host computer 11 through controller 12, and Read and write memory 13 or NAND Flash 14. [0004] In the prior art, when the read and write operation request is for NANDFlash14, the memory 13 needs to be used as an intermediary to read the data corresponding to the read operation request from the NANDFlash14 to the memory 13, and then retu...

AI Technical Summary

Problems solved by technology

[0005] However, based on historical data statistics, NAND Flash and capacitors are the main failure sources of SSDs

Therefore, in the SSD, the existence of capacitors and excessive reading and writing of NAND Flash may lead to a shorter service life of the SSD

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