An RAID data storage system and method

Abstract

The invention discloses an RAID data storage system and a RAID data storage method, and belongs to the technical field of data storage. The system comprises a host computer, a RAID data storage devicecomposed of an FPGA-based solid-state hard disk controller and at least one RAID array, wherein the RAID data storage device is arranged in the host computer; The host computer includes a host computer verification calculation unit for verification calculation; At least one RAID array is connected with that solid-state hard disk controller for performing access control on the RAID array; The solid state disk controller includes an FPGA check computation unit for check computation and a read / write control unit for performing write access and read access to requested stripes within the RAID array. The technical scheme utilizes the computing power of the host CPU and the FPGA chip to carry out RAID verification and other computing operations on the solid state disk, flexibly distributes computing tasks according to user requirements and completes the calculation, reduces the calculation time of the verification value, and improves the computing efficiency and the read-write performance of the solid state disk.

Description

technical field [0001] The invention relates to the technical field of data storage, in particular to a RAID data storage system and method. Background technique [0002] Solid State Drives (SSD), as an emerging storage medium, have faster reading and writing speeds, better shock and drop resistance, lower power consumption, and lower working noise than traditional mechanical hard drives. The temperature range is wider, and the form factor is thinner and lighter than traditional mechanical hard drives. Therefore, with the development of storage technology, more and more storage solutions are implemented using solid-state drives. [0003] Existing high-end solid-state hard disks are basically solid-state hard disks based on flash memory, which are usually composed of a solid-state hard disk controller and a flash memory chip, and multiple flash memory chips form a RAID storage array of the solid-state hard disk. After data files enter the RAID array, they will be divided in...

AI Technical Summary

Problems solved by technology

[0011] 1) The computing power of the SSD controller is relatively weak, which limits the performance of RAID computing, thereby limiting the read and write performance of the SSD;

[0012] 2) The idle computing power of the host is not utilized, resulting in a waste of host performance

[0013] 3) It is impossible to flexibly allocate the computing tasks of the SSD controller and the host computer, and the parallel computing capability is low

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