Data index method and server based edition vector

A data indexing and server technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problem of consuming local resources, achieve the effect of saving time, saving network bandwidth, and reducing backup time

Inactive Publication Date: 2013-05-22
袁华强 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the backup processes in this type of backup system are independent of each other, that is, each backup process will not obtain relevant information from the previous backup process, so each backup process needs to repeatedly split and hash the same file. Greek computing, seriously consumes local resources

Method used

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  • Data index method and server based edition vector
  • Data index method and server based edition vector
  • Data index method and server based edition vector

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Embodiment Construction

[0033] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] The cloud synchronization backup system adopts the C / S architecture. The process running on the local node is called the client, and the process running on the remote node is called the server. The cloud synchronization backup system needs to implement the following operations, namely: synchronously copy the data of the client to the server, and restore the backup data of the server to the client. All operations are initiated by the client, and the server only passively accepts the client's request. The backup process from the client to the server adopts the "push" method, while the restore process from the server to the client adopts the "pull" method.

[0035] The cloud synchronization backup system implements data dedup...

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PUM

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Abstract

The invention provides a data index method and a server based an edition vector. The data index method and the server based the edition vector are characterized by comprising that a server-side read current data in a backup process, and a mapping relation can be built between a data block hash value and a data block position. The server-side is provided with a Ve in the latest edition. Combined with an edition Vi in a last time data index, the edition scope of a index in current time can be ensured from a Vi to a Ve. A hash table and an index can be downloaded in an internal memory to complete an initialized mission. The server-side read all edition files from a metadatabase, wherein indexes are arranged inside the all data files. Information which is relevant to the files are added into the hash table to complete a file hash index. According to a data index method and the server based the edition vector, the index is only needed to build to a data block indicator about the repeating data. The method is more efficient and capable of saving the time of building the data index.

Description

technical field [0001] The invention relates to a method for data synchronization and data backup in cloud computing and cloud storage systems, belongs to the technical field of computer information storage, and is widely applicable to online storage, cloud storage services, data backup, data archiving, data replication, remote disaster recovery, and storage management and other systems. Background technique [0002] In today's information age, with the acceleration of e-commerce applications, data has become people's most important wealth. People use all kinds of data generated by computers in their daily life and work, but they are always faced with unpredictable accidents such as virus infection, hardware failure, software error, and equipment loss, as well as the threat of human factors such as hacker attacks and misuse. Data security has become a major hidden danger in the information age, and data backup has naturally become an important preventive method. [0003] I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 袁华强陶铭刘海峰
Owner 袁华强
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