Data processing method of solid state drive and solid state drive

Abstract

The embodiment of the present application discloses a data processing method of a solid-state disk, which is used for simultaneously reading and writing data in a request message according to a presetmaximum data amount of a data logic block when the solid-state disk reads and writes a large amount of data, thereby improving the read-write performance of the solid-state disk. A method for implementing an embodiment of that present application includes the follow steps: a front-end module of a solid-state disk presets a maximum data amount of a data logic block in the front-end module; the front-end module receives a read request sent by the host, and the read request comprises a first logical block address LBA. The front-end module judges whether the data amount of the read request is less than or equal to the maximum data amount; if so, the front-end module sends a read request to the back-end module of the solid-state disk; according to the first LBA, the back-end module simultaneously reads the first physical page address PPA in the DDR SDRAM corresponding to all the first LBAs; the backend module reads the first data in the flash memory NAND according to the first PPA; the back-end module sends the first data to the front-end module. The front-end module sends the first data to the host.

Description

technical field [0001] The present application relates to the field of computer technology, in particular to a data processing method of a solid-state hard disk and the solid-state hard disk. Background technique [0002] With the advent of the data age, big data and cloud services have put forward higher requirements on the capacity and performance of SSDs, so the firmware algorithms for read and write requests have encountered unprecedented challenges. [0003] At present, enterprise-level solid-state drives use data logic blocks with a data volume of 4KB. When the front-end module of the solid-state drive receives a read request, the front-end module needs to divide the data volume in the read request into multiple 4KB blocks. Send one of the LBAs corresponding to 4KB to the back-end module of the solid-state disk for the first time. According to the received LBA, the back-end module is placed in the double data rate synchronous dynamic random access memory (double data r...

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Problems solved by technology

[0004] However, when the read request sent by the host to the front-end module contains a large amount of data (for example, 128KB), since the front-end module is only provided with firmware (that is, a software program) that passes the data logic block of 4KB, it is used to process the read-write request. , therefore, causing the solid-state hard disk to process read and write requests containing a large amount of data very slowly, which increases the operating burden of the control processor in the solid-state hard disk. If the amount of data is large, the read and write performance of the solid state drive cannot be improved, and the read and write bandwidth of the solid state drive is limited.

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