Remote storage method, remote storage system and client

Abstract

The invention relates to the field of communication, and discloses a remote storage method, a remote storage system and a client. The method comprises the following steps of: realizing a structure of a network attached storage (NAS) at a storage server; virtualizing a magnetic disk at a client, wherein the content stored in the server is mapped on the virtual magnetic disk; and intercepting and transmitting an operation request of the virtual magnetic disk to the server before the operation request reaches a sector-level request to ensure that the server correctly processes the operation request. A completely new remote storage mode, in which storage area network (SAN) equipment (original equipment is used at the client in place of non-shared equipment, and the system is taken as a local disk) is formed at the client and NAS is formed at the server, is formed, so that the advantages of the NAS and the SAN are effectively combined, and a plurality of users can very conveniently share the same file and catalogue.

Description

technical field [0001] The present invention relates to the communication field, in particular to storage technology in the communication field. Background technique [0002] In existing storage systems, there are mainly two modes: a Network Attached Storage (Network Attached Storage, “NAS” for short) mode and a Storage Area Network (Storage Area Network, “SAN” for short) mode. [0003] Among them, NAS is usually defined as a special dedicated data storage server, including storage devices (such as disk arrays, CD / DVD drives, tape drives or removable storage media) and embedded system software, which can provide cross-platform file sharing. Features. NAS usually occupies its own nodes on a local area network (LocalArea Network, referred to as "LAN"), without the intervention of application servers, allowing users to access data on the network. In this configuration, NAS centrally manages and processes all Data, offloading the load from application or enterprise servers, ef...

AI Technical Summary

Problems solved by technology

[0012] (1) On the client computer, it is expressed as a shared disk / Network Neighborhood (Windows) / samba (Linux), because it is shared data, it is difficult to achieve data privacy

[0013] (2) The transmission speed is slow

[0014] (3) Generally implemented as software, such as FTP Server / Samba / ...., it is difficult to hardwareize; certain professional knowledge is required for deployment

[0017] (2) Data is not easily shared between different users

[0018] (3) The transmission is sector data, which is not encrypted and is very likely to be captured from the network layer

[0019] That is to say, no matter whether you choose NAS as the remote storage method or SAN as the remote storage method, each has its own difficulties, and it is impossible to combine the advantages of NAS and SAN.

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