Data restoration method based on version vector, and server

A server and server-side technology, the redundancy applied in computing is used for data error detection, response error generation, electrical components, etc. It can solve problems such as consuming local resources, achieve high efficiency, save network bandwidth, and reduce backup time. Effect
CN103118104AInactive Publication Date: 2013-05-22刘海峰
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
刘海峰
Publication Date
2013-05-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a data restoration method based on version vector, and a server. Both a client side and a server side store a version tag of each backed file and a version tag of each restored file. When the client side requests for data restoration, the server side determines whether requested data is stored on the client side or not according to the version tag provided by the client side, deletes the data which are stored on the client side, and transmits only an indicator of repeating data to the client side. The repeating data deletion method based on version requires only transmission of the version vector of the restored data block, the method is more efficient, network bandwidth is economized, and restoration time is reduced.
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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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