Cloud storage system and file copy deployment method based on cloud storage system

Abstract

The invention discloses a cloud storage system and a file copy deployment method based on the cloud storage system. The cloud storage system and the file copy deployment method are used for improving the reliability and the availability of data under cloud storage and belong to the technical fields of distributed computation and cloud storage. By means of the cloud storage system and the file copy deployment method, a whole cloud computing model is grouped according to inlet server nodes of the distributed cloud computing model, the minimum communication cost from server nodes to the inlet nodes and the bandwidth fluency degree of the optimal path obtained by the self load fluctuation rate; a copy is reasonably arranged according to the read-write ratio of the copy. According to the cloud storage system and the file copy deployment method, the network communication cost is wholly reduced, and meanwhile the availability of the copy is improved. Compared with a traditional copy arranging scheme, the technical scheme has the larger advantages on both the utility rate of storage space and the communication cost.

Description

technical field [0001] The invention relates to a cloud storage system and a file copy deployment method based on the system, which are used to improve the reliability and availability of data in cloud storage, and belong to the technical field of distributed computing and cloud storage. Background technique [0002] With the development of computer technology and network technology, the scale of the Internet is constantly expanding, and the network bandwidth is also constantly improving. With the rapid development of the Internet, all kinds of information are collected in it, forming a huge and vast information space, and massive data are stored in this space. [0003] Traditional centralized storage systems store data on a single device through which all access and requests for data pass. This approach causes a large load on the device and becomes a bottleneck of the system, which cannot meet the reliability and security requirements of large-scale storage. How to store ...

AI Technical Summary

Problems solved by technology

First of all, the cloud storage system based on the HDFS architecture is randomly selected when selecting the copy placement, so the communication cost of user access is not considered

Secondly, some conventional placement strategies only implement the cost-optimized placement of replicas in the existing model. However, in the face of today's massive data, for popular data, the optimal path is obviously not enough. A large number of requests do not take the optimal path, and the bandwidth must be allocated. Fluency is added to the consideration of copy deployment, so it is of great significance to study a new cloud storage copy management model and deployment scheme

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