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Data processing method of cloud storage system

A cloud storage system and data processing technology, applied in the field of cloud storage systems, can solve the problems of wasting data storage space and increasing costs, and achieve the effects of saving storage space, improving reliability, and making full use of it

Inactive Publication Date: 2013-03-13
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Claims
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AI Technical Summary

Problems solved by technology

[0010] It is precisely because data error correction can be performed so efficiently in the case of low data redundancy, and the general cloud storage system does not adopt this error correction method, but only achieves the ability of data recovery through data backup. All storage systems must back up 3 or more copies, which will obviously waste data storage space and increase costs.

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0028] Below in conjunction with example the present invention will be further described, but should not limit protection scope of the present invention with this.

[0029] This example is used to store a 100MB original data in the cloud. The specific implementation steps are as follows

[0030] Step 1: Divide a 100MB original data to be stored into 102401 frames of data, each frame of data has a fixed length of 1020 bits.

[0031] The data to be stored is divided into 102401 frames of data with a fixed length of 1020. When the length of the last original data frame is less than 255, the last data frame is filled with data '0' to reach the length of 1020.

[0032] Step 2, adding a number, ie ID, to each of the data frames to obtain a new data frame.

[0033] The ID is added to each frame of data. The ID is 4 bytes long and increments from 1. In the example, the ID number is from 1 to 102401.

[0034] Step 3, recombine the data frame into several data blocks, each data block ...

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Abstract

The invention relates to a data processing method of a cloud storage system. Data storage and data extraction of the cloud storage system are respectively subjected to reed solomon coded data error-correction coding process and reed solomon error correction decoding process. According to the data processing method of the cloud storage system, disclosed by the invention, the safety and the restorability of data in the cloud storage system are improved, the number of backup data is reduced, the storage space of data can be saved, and the cost is reduced.

Description

technical field [0001] The invention relates to a cloud storage system, and is characterized by a data processing method based on the Solomon cloud storage system. Background technique [0002] In today's turbulent era, cloud storage, as the infrastructure and the most extensive application of the cloud, has received great attention. In the cloud storage system, user data is stored in the cloud of the system, and the storage nodes that make up the cloud are beyond the control of the user. User data may be mined and compared or maliciously tampered with by unauthorized third parties. [0003] At the same time, when one or more storage nodes in the cloud are missing or fail (as the cloud expands, the probability of storage node failure will increase), the possibility of user data loss is extremely high. The above situation shows that the development of cloud storage urgently needs a security mechanism that can fully guarantee the integrity, privacy and reliability of user da...

Claims

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Application Information

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IPC IPC(8): G06F11/14G06F11/08
Inventor 刘涛阮昊
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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