A Disaster Recovery Method, Device, Equipment and System for Three Centers in Two Places
A remote disaster recovery and disaster recovery technology, applied in the storage field, can solve the problems of increasing error rate and misoperation, and achieve the effect of reducing operation error rate, avoiding start-up operation, and improving safety and reliability
Active Publication Date: 2021-08-31
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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Problems solved by technology
However, the replication between the off-site disaster recovery center and the production center in the prior art is performed asynchronously, that is, data modification can be performed at the production center without receiving a response from the off-site data center, while off-site synchronous replication needs to be performed every Start once after modifying the data for the first time, it is easy to increase the error rate due to frequent startup and misoperation
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[0048] The core of the present application is to provide a disaster recovery method, device, equipment, system and computer-readable storage medium for three centers in two places, so as to further effectively improve the safety and reliability of the disaster recovery scheme.
[0049] In order to describe the technical solutions in the embodiments of the present application more clearly and completely, the technical solutions in the embodiments of the present application will be introduced below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
[0050] see figure 1 , figure 1 A structural schematic diagram of a two-site three-center dis...
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This application discloses a two-site three-center disaster recovery system, including the production volume and the first snapshot volume located at the production site, the first disaster recovery volume located at the disaster recovery site in the same city, and the second disaster recovery site located at the remote disaster recovery site The first snapshot relationship is established between the production volume and the first snapshot volume; the active-active relationship between the production volume and the first disaster recovery volume is established and started, so that the first disaster recovery volume can be enabled when the production volume fails; the first snapshot volume and A synchronous remote replication relationship is established and started between the second disaster recovery volumes; the first snapshot relationship is started periodically, so that the second disaster recovery volume can be enabled when both the production volume and the first disaster recovery volume fail. The application can effectively improve the real-time synchronization of data, and improve the safety and reliability of data disaster recovery. The present application also discloses a disaster recovery method, device, equipment and computer-readable storage medium for three centers in two places, which also have the above beneficial effects.
Description
technical field [0001] The present application relates to the field of storage technology, and in particular to a two-site three-center disaster recovery method, device, equipment, system, and computer-readable storage medium. Background technique [0002] In today's information age, data disaster recovery has become an inevitable choice for various IT systems. [0003] Although the traditional active-standby disaster recovery solution and the intra-city active-active data center solution can cope with most disasters, once regional disasters such as wars, floods, earthquakes, etc. occur, the data centers in these two solutions may be destroyed at the same time , causing business interruption. For example, the 2008 Wenchuan Earthquake affected more than half of China and many countries and regions in Asia. Communications in the hardest-hit areas were completely interrupted, all IT systems were completely paralyzed, and social public service platforms were completely shut dow...
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IPC IPC(8): G06F11/14
CPCG06F11/1448G06F11/1464
Inventor 张振广
Owner ZHENGZHOU YUNHAI INFORMATION TECH CO LTD