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Storage method for data storage model of credible cloud storage system

A cloud storage system and data storage technology, applied in the field of cloud computing, can solve problems such as differences in the credibility of storage nodes, and achieve the effect of ensuring security and credibility, improving reliability and access efficiency

Active Publication Date: 2011-05-25
INFORMATION & COMM BRANCH OF STATE GRID JIANGSU ELECTRIC POWER
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  • Claims
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AI Technical Summary

Problems solved by technology

The cloud storage system integrates a large number of storage nodes. Due to the different geographical locations and management strategies of the storage nodes, the reliability of the storage nodes varies greatly.

Method used

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  • Storage method for data storage model of credible cloud storage system
  • Storage method for data storage model of credible cloud storage system
  • Storage method for data storage model of credible cloud storage system

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Embodiment Construction

[0028] A storage method for a trusted cloud storage system data storage model according to the present invention, figure 1 It is a specific implementation framework diagram of the present invention. The method includes defining the credibility of a node according to the ratio of the online time of the node to the total time, so that the first stage of the node is the most reliable and stable; according to the user The available bandwidth between the node and whether there is a file requested by the user defines the data access time, making the second stage of the minimum data access time, and ensuring that the total amount of data stored by each node does not exceed its storage space; specific requirements as follows:

[0029] In the first stage, a graph Q(V, E) of G nodes and the transmission time E between nodes is first constructed, and then Q vertices with the highest probability are selected to determine the maximum reliability of the Q vertices respectively. C m and th...

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Abstract

The invention discloses a storage method for a data storage model of a credible cloud storage system. In the method, the confidence of a node is defined according to the ratio of on-line time to total time of the node to ensure that the node has highest confidence and best stability; and data access time is defined according to the available bandwidth between a user and the node and the existenceof a file requested by the user to ensure that data access time is minimum and the total data quantity stored in various nodes does not exceed the storage space of the nodes. The heuristic solving strategy reduces average data access time, and the average confidence gradually becomes more stable with the increase of the quantity of scheduling data. The method improves the reliability of the data and high efficiency of the access, ensures the safety and credibility of the cloud storage system, and has significance in the fields of cloud computing and dependable computing.

Description

technical field [0001] The invention belongs to the field of cloud computing, in particular to a method for storing a credible cloud storage system data storage model. Background technique [0002] The security and trustworthiness of human society is closely related to the security and credibility of cyberspace (Cyberspace). Only by solving the security and credibility of human society and cyberspace can the security, harmony, prosperity and progress of human society be guaranteed. [0003] Cloud storage is a new concept extended and developed from the concept of cloud computing (Cloud Computing). It refers to the collection of a large number of different types of storage devices in the "cloud" through application software to work together based on a distributed file system. , a system that jointly provides data storage and business access functions to the outside world. In fact, cloud storage system can also be understood as a cloud computing system with data storage and m...

Claims

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Application Information

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IPC IPC(8): H04L29/08
Inventor 曹杰伍之昂张圣王有权方仓健
Owner INFORMATION & COMM BRANCH OF STATE GRID JIANGSU ELECTRIC POWER
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