A PCIE-based network shared storage system and its storage method

Abstract

The invention discloses a PCIe-based network sharing storage system, comprising an NFS Client module and an NFS Server module. The NFS Client module is used for undertaking a specific access operation of an upper file access application and converting the operation into a remote procedure call request based on a specific file access operation type; the NFSClient module is further used for returning an operating result to a server and returning to the upper file access application in the format of a function; the NFS Server module is used for responding the remote procedure call request of a client and accessing a local file system via I / O Layer to finish a practical file access operation, and returning the operating result to the client. The storage system and the storage method of the invention enable the client without storage medium to have a network storage function via a network sharing storage manner to access a file in an access server.

Description

technical field [0001] The invention relates to avionics technology, in particular to a network shared storage system method for a switching network constructed through a PCIe bus in an embedded environment. Background technique [0002] With the increasing integration of avionics equipment, the complexity of avionics equipment is also increasing. A device is composed of multiple modules to form a PCIe switching network, and each module can communicate with each other through a custom communication protocol. Realize data interaction between modules. However, when one of the modules contains a storage medium and acts as a server, and the other modules act as clients, the existing client application software cannot directly access files in the storage medium of the server. With the continuous change of user requirements and the increase of the number of directories and files in the storage medium, if the network file system is not used, and the file access interface is added ...

AI Technical Summary

Problems solved by technology

But when one of the modules contains a storage medium and acts as a server, and the other modules act as a client, the existing client application software cannot directly access the files in the storage medium of the server

With the continuous change of user needs and the increase of the number of directories and files in the storage medium, if the network file system is not used, and the file access interface is added to the communication protocol between the client application software and the server application software, then each module The coupling between the application software and the communication protocol is getting bigger and bigger, and the application software is getting more and more complex.

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