Data replication method and storage system

A storage system and data replication technology, applied in the storage field, can solve the problem of low data replication efficiency and achieve the effect of improving replication efficiency

Active Publication Date: 2014-05-21
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the existing 3DC disaster recovery system, when data needs to be copied to the secondary site, the production site or the primary site usually copies the data to the secondary site, and the data replication efficiency is not high

Method used

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  • Data replication method and storage system
  • Data replication method and storage system

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Embodiment Construction

[0094] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments.

[0095] The data backup method provided by the embodiment of the present invention is mainly applied to a disaster recovery system of multiple data centers, and the disaster recovery system of multiple data centers referred to in the embodiment of the present invention refers to a disaster recovery system including no less than 3 data centers. For convenience of description, the embodiment of the present invention uses a three-data center (3Data Center, 3DC) disaster recovery system as an example for description. Such as figure 1 as shown, figure...

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Abstract

Embodiments of the invention provide a data replication method and a storage system. The method is applied to a storage system comprising at least a first storage device and a second storage device. In the method, a first storage system determines replication information used for indicating the data that the first storage system is required to replicate in the current task to a second data storage system; the first storage system, based on the replication information, determines first sub replication information and second sub replication information; the first storage device replicates the data that are replicated by the first storage device to the second storage system to the second storage system according to the first sub replication information; and the second storage device replicates the data replicated by the second data storage device to the second storage system to the second storage system according to the second sub replication information. The data replication method can improve the replication efficiency between the first storage system and the second storage system.

Description

technical field [0001] The invention relates to the field of storage technology, in particular to a data replication method and a storage system. Background technique [0002] In order to protect the security of data, for the purpose of disaster recovery (Disaster Recovery), various storage manufacturers will realize remote backup of data by establishing remote disaster recovery centers, so as to ensure the original data after disasters (such as fires, earthquakes, etc.) The data will not be lost or damaged, and the key business can be restored within the allowed time to minimize the loss caused by the disaster. [0003] Currently, major disaster recovery systems mainly include: a two-center disaster recovery system and a three-center (3Data Center, 3DC) disaster recovery system. The two-center disaster recovery system realizes disaster recovery by establishing two data centers. The main data center is used to undertake the business of users, and the backup data center is u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/14G06F12/08
CPCG06F11/2094G06F11/2097G06F3/061G06F3/065G06F3/067G06F11/2074G06F16/273
Inventor 陈怡佳欧阳戟蒋培军
Owner HUAWEI TECH CO LTD
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