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Data remote disaster tolerance method and apparatus

A data and remote technology, which is applied in the direction of data error detection and response error generation in electric digital data processing and calculation redundancy, can solve the problems of low efficiency and stability of asynchronous remote replication technology, and improve efficiency And stability, reduce congestion, reduce the effect of data volume

Inactive Publication Date: 2016-03-16
INSPUR BEIJING ELECTRONICS INFORMATION IND
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Problems solved by technology

[0006] The purpose of the present invention is to provide a data remote disaster recovery method and device, the purpose is to solve the problem of low efficiency and stability of asynchronous remote replication technology in the existing disaster recovery scheme

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  • Data remote disaster tolerance method and apparatus
  • Data remote disaster tolerance method and apparatus
  • Data remote disaster tolerance method and apparatus

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Embodiment Construction

[0032] The emergence of asynchronous remote replication technology places many requirements on the infrastructure of disaster recovery solutions. In some cases where the link bandwidth is low, the network path is congested, and the host load is heavy, a lot of congestion and congestion error messages will appear. Similar messages may appear in the primary site, backup site, and network. The core of the present invention is to provide a data remote disaster tolerance method and device.

[0033] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art witho...

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Abstract

The invention discloses a data remote disaster tolerance method and apparatus. The method comprises: when a source volume in a main site and a target volume in a backup site establish an asynchronous copy relationship, generating a first additional volume in the main site and generating a second additional volume in the backup site; synchronously recording data change information of the source volume by the first additional volume; after a preset window period is ended, transmitting the recorded data change information to the target volume of the backup site by the first additional volume; and synchronously recording the data change information by a second additional volume to finish the asynchronous copy of the main and backup sites. According to the data remote disaster tolerance method and apparatus provided by the invention, the additional volumes are introduced and the window period of a proper size is set, so that the data volume of asynchronous data transmission can be effectively reduced, the congestion degree of a transmission network can be reduced, and the efficiency and stability of a remote disaster backup technology are improved.

Description

Technical field [0001] The invention relates to the technical field of storage array disaster tolerance, in particular to a data remote disaster tolerance method and device. Background technique [0002] Data security has now become the core of the operation of enterprises and institutions. Many storage manufacturers can provide users with extremely stable storage devices, but they must consider the factors that destroy the production system due to various natural disasters. In order to ensure the continuity, recoverability and high availability of data access, remote disaster recovery solutions came into being, and remote replication technology is the core technology in disaster recovery solutions. [0003] Remote Copy (RemoteCopy), also known as remote mirroring, is a kind of data mirroring technology, divided into synchronous remote copy and asynchronous remote copy. It can maintain several copies of data at two or more sites. Since multiple sites are far away and are often di...

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Application Information

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IPC IPC(8): G06F11/14
CPCG06F11/1458
Inventor 冯相东
Owner INSPUR BEIJING ELECTRONICS INFORMATION IND
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