Method and medium server for remote data backup

A technology of remote data and data backup, which is applied in the direction of data exchange through path configuration, error detection of redundant data in computing, digital transmission system, etc. It can solve the problem of synchronizing more data to remote media servers and local data cannot Synchronization, IO operations cannot be easily discarded, etc., to achieve the effect of improving consistency

Inactive Publication Date: 2009-04-22
EISOO SOFTWARE
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Problems solved by technology

If the IO operations in multiple backup events are likely to be performed on the same data, such as modifying the value of the same data multiple times, obviously, for the final modification result, only the last IO operation needs to be performed, that is, the previous operation are merged into the last operation; but because it is impossible to determine whether the IO operations are overlapping, the IO operations cannot be merged, resulting in the need to synchronize more data to the remote media server; in addition, for some special backup events , such as synthesizing backups, modifying backup keys, etc., the event its

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  • Method and medium server for remote data backup
  • Method and medium server for remote data backup
  • Method and medium server for remote data backup

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[0034] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments.

[0035] The present invention mainly uses backup events as the execution basis of data backup, and monitors the backup events of data backup to the local media server during remote backup; uses asynchronous replication to synchronize the monitored backup events to the remote media server. Between the local media server and the remote media server, it is the backup event rather than the specific IO operation. The local media server synchronizes the operation unit based on the backup event, so that the backup event synchronized to the remote media server and the backup issued by the local data system The events are exactly the same, avoiding the possible execution confusion between the IO operations by decomposing the backup event into multiple underl...

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Abstract

The invention discloses a method for remote data backup. The method comprises the steps as follows: a backup event which causes the data backup to a local medium server is monitored; and the monitored backup event is synchronized to a remote medium server in an asynchronous replication form. The backup event executed by the remote medium server is completely consistent with the backup event sent by original data, and the backup event is not required to be decomposed into substrate IO operation to be synchronized, so that the consistency between the backup data in the remote medium server and the original data is improved greatly. The invention also discloses a medium server.

Description

technical field [0001] The invention relates to the technical field of data backup, in particular to a remote data backup method and a media server. Background technique [0002] Data backup is an important protection measure to prevent data loss. Generally, data distributed on user workstations or servers is copied to a certain media server for storage. The data stored on the media server is the same as the original data, so that when the original data occurs When there is a problem, the data on the media server can be used for recovery to protect the security of important data, also known as data disaster recovery. [0003] According to the distance between the media server and the original data, the existing backup methods can be divided into remote backup and local backup. Remote backup includes data backup between different locations in the city, different cities, and even different countries, which can effectively prevent data backup in some regions. It can provide hi...

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Application Information

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IPC IPC(8): H04L12/28H04L1/22G06F11/14
Inventor 贺鸿富陈骁
Owner EISOO SOFTWARE
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