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Remote replication method of file system

A technology of remote replication and file system, applied in response to error generation, special data processing applications, instruments, etc., can solve the problems of wasting network bandwidth resources and low data transmission efficiency, so as to improve replication efficiency, reduce data volume, and improve efficiency effect

Inactive Publication Date: 2012-06-20
上海文广互动电视有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] The purpose of the present invention is to provide a file system remote copy method to solve the problems of low data transmission efficiency and waste of network bandwidth resources in the existing remote copy technology

Method used

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Embodiment Construction

[0023] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0024] See figure 1 , which is a flow chart of an embodiment of the file system remote copy method of the present invention, which includes the following steps:

[0025] S11. Identify files changed in the current period in the source file system.

[0026] With the read and write operations of the source file system, its data is also constantly changing. Therefore, in order to better protect the data in the source file system, it is necessary to regularly back up the source file system. The time interval for each backup of the source file system, the present invention Call it a replication cycle.

[0027] If all the data in the entire source file system is copied in each copy cycle, it will inevitably take a long time and waste more network resources, and except for the first copy cycle (the first copy cycle needs to copy the source file system all data), it is not...

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PUM

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Abstract

The invention provides a remote replication method of a file system. The remote replication method comprises the following steps: A) identifying a file which is changed in the current period in a source file system; B) getting an expansion region which is changed in the source file system and generating incremental data to be synchronized; and C) synchronizing the incremental data to a target file system. As only data blocks which are changed are transmitted during a replication process according to the method provided by the invention, the quantity of the data to be transmitted is greatly reduced and the replication efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of computer storage, in particular to a method for remote duplication of a file system. Background technique [0002] At present, computer storage systems are widely used to store some important data in people's daily life and work, and efficient and safe data backup is concerned and valued by computer users. When the operating system or storage fails or is damaged, the damaged data can be quickly replaced by storing backup data to ensure that key data is not lost and normal business continuity is maintained. [0003] Data replication can be regarded as a backup strategy, and can be divided into local replication and remote replication. Local replication does not need to be transmitted through the network, so the backup speed is relatively fast. However, the original data and the backup data are in the same system under this kind of replication, so the problem of original data destruction can only be solve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/14G06F17/30
Inventor 安然谈川玉卢宝丰
Owner 上海文广互动电视有限公司
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