Data replication method and data storage system

A data storage system and storage system technology, applied in the field of data replication methods and data storage systems, can solve the problems of increasing the delay of data to be written and the performance impact of the production host, and achieve the effect of improving performance and reducing delay

Active Publication Date: 2014-03-19
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The delay of the data to be written in the production host is incr...

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

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Embodiment Construction

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0024] The data replication method provided by the embodiment of the present invention can be implemented in a data storage system. see figure 1 , figure 1 It is a schematic diagram of the data storage system architecture of the data replication method provided by the embodiment of the present invention. Such as figure 1 As shown, the data sto...

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Abstract

The invention discloses a data replication method and a data storage system. The data replication method comprises the following steps: first storage equipment receives a write data request sent by a production host, wherein the write data request comprises to-be-written data; according to idle address information which is acquired in advance and stored in a cache memory of second storage equipment, an address of the to-be-written data, where is to be written in the cache memory of the second storage equipment, is determined; a write data command is generated according to the address of the to-be-written data, where is to be written in the cache memory of the second storage equipment, as well as the to-be-written data; and the write data command is sent to the second storage equipment. According to the mode, interaction times of the first storage equipment and the second storage equipment can be reduced, further, time delay of the to-be-written data of the production host is reduced, and performance of the production host is improved.

Description

technical field [0001] The invention relates to the field of data replication, in particular to a data replication method and a data storage system. Background technique [0002] With the advancement of digitalization in various industries, data has gradually become the core of the operations of enterprises and institutions. Users have higher and higher requirements for the stability of storage systems that carry data. Due to frequent disasters such as earthquakes, tsunamis, and wars, remote data disaster recovery is particularly important to ensure the stability of the storage system. In order to ensure the continuity, recoverability and high availability of data access, the existing technology adopts a remote data disaster recovery solution of synchronous remote replication. [0003] The implementation method of synchronous remote replication in the prior art is: when the data to be written sent by the production host is sent to the first storage device installed in the ...

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Application Information

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IPC IPC(8): G06F11/14G06F12/08H04L29/06G06F12/1081
Inventor 刘辉
Owner HUAWEI TECH CO LTD
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