Data access method, device and system for cloud storage

Abstract

The invention belongs to the technical field of cloud storage and in particular relates to a data access method for cloud storage. The method comprises the steps of data storage and data retrieving, wherein the data storage step comprise the substeps of: converting a file to be stored into a group of data blocks to form a file physical part, saving the physical part and reducing the physical part into file information to form a file logic part; transmitting the physical part to a plurality of cloud storage data centers for storage; and saving the storage positions of each data block of the physical part in the cloud storage data centers to the logic part; and the data retrieving step comprises the substeps of: acquiring the file logic part according to a file access request; retrieving the file physical part from the cloud storage data center according to the logic part; and reducing the physical part into the file according to the logic part. The invention further provides data access device and system of the cloud storage. The invention improves the access property of the cloud storage data, saves storage space, improves the transmission bandwidth of the cloud storage data, and enhances data safety.

Description

technical field [0001] The invention belongs to the technical field of cloud storage, and in particular relates to a data access method, device and system of cloud storage. Background technique [0002] Data has been proven to be one of the important assets of enterprises, and the rapid growth of data has made enterprises face unprecedented challenges. At the same time, the rapidly changing world economic situation and the cost pressure brought about by fierce competition make enterprises have to consider how to reduce IT costs to meet the growing storage requirements of enterprises. [0003] The existing storage architecture can be divided into two types: one is a proprietary architecture, such as DAS (Direct Attached Storage, direct attached storage), SAN (Storage Area Network, storage area cloud) and cloud access storage server ( Network Access Server, NAS), etc. This type of storage system is exclusively used by one party, which can provide users with good control, bet...

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to provide a method, device and system for cloud storage data access, aiming at solving the problem of data archiving and return speed in the existing cloud storage method being limited by the available bandwidth of the cloud storage data center end network , or store the disassembled data in one-to-one correspondence in the cloud storage data center, which is not conducive to the protection of data security and privacy

Images