Storage system for controlling SATA (Serial Advanced Technology Attachment) disk based on NVME protocol

Abstract

The invention discloses a storage system for controlling SATA disk based on an NVME protocol, which comprises a processor and an FPGA module, the processor is connected with the FPGA module through a PCIE bus, a first memory is mounted on the processor, a second memory and an SATA storage array are mounted on the FPGA module, and the SATA storage array comprises a plurality of SATA disks. The processor sends a read-write instruction to the FPGA module and controls the FPGA module to read and write data to the SATA storage array. The storage system combines the high performance of the NVME protocol and the expansibility of the SATA protocol, solves the problem that an existing processor is insufficient in supporting an SATA interface, achieves continuous high-bandwidth reading and writing of the storage system, can flexibly modify the number and the safety level of SATA disks, and is low in power consumption, low in cost, good in stability in high and low temperature working environments and good in compatibility.

Description

technical field [0001] The invention belongs to the technical field of data storage, and in particular relates to a storage system for controlling SATA disks based on the NVME protocol. Background technique [0002] With the rapid development of flash memory technology, field programmable logic array technology and SoC technology, a storage system in the computer embedded field is gradually built. Among them, the solid state disk composed of the control unit and the flash memory becomes one of the core components of the storage system. At present, SATA solid-state drives follow the SATA protocol, the highest theoretical bandwidth is 600MB / s, and the AHCI protocol is used in the software application layer. When building a high-performance storage system, multiple SATA disks and multiple SATA interfaces are required. With the introduction and development of the NVMe specification, compared with the AHCI protocol, the NVMe specification makes full use of the low latency, high...

AI Technical Summary

Problems solved by technology

[0003] At present, the storage system in the prior art adopts the following technical solutions: 1) The storage system based on an embedded processor and a SATA disk only supports a small number of SATA interfaces, and the SATA interface is generally used as a system disk, and the embedded processor is limited The number of SATA interfaces and the type of protocol, the delay is large, and the rate is low; 2) The storage system based on the embedded processor, PCIE to SATA bridge and SATA disk is relatively poor in security and flexibility; 3) Based on the embedded processor , PCIE switching and NVMe disk storage system, the NVMe disk currently on the market, the speed drops when the temperature is high, and it is easy to be damaged when the temperature is low

The above technical solutions are difficult to apply to the high standard, high customization and scalability requirements of the storage system in the field of security and confidentiality

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