Method and device for device arbitration

Abstract

Disclosed are a method and device for device arbitration. The method comprises: a first storage device transmits an arbitration request message to an arbitration server; the arbitration server transmits, on the basis of the arbitration request message, of registration information of the first storage device, and of a second storage device not taking over a host service, to the first storage device an indication message indicating that the first storage device is to take over the host service and deletes registration information of the second storage device; the first storage device transmits a reservation request message to the arbitration server to indicate that the arbitration server is to ban the second storage device from registering. The method and device for device arbitration provided in embodiments of the present invention can prevent the occurrence of a possible case of data desynchronization as a result of multiple device simultaneously taking over the host service, thus increasing the fault tolerance capability, reliability, and security of a dual live arbitration system.

Description

technical field [0001] The present invention relates to the communication field, in particular to a device arbitration method and device. Background technique [0002] With the development of information technology, data processing is becoming more and more concentrated, and the requirements for data security are getting higher and higher. The active-active system is a computer disaster recovery (Disaster Recovery) solution that saves resources. One data center undertakes the business of users at the same time, and the two data centers back up each other and perform real-time backup. [0003] When the communication between the two data centers of the active-active system is disconnected, the two data centers will each send an arbitration request message to the arbitration server, requesting to take over the host business. The arbitration server saves the registration information of the two data centers. After the server determines that one of the data centers can take over ...

AI Technical Summary

Problems solved by technology

However, according to the solutions in the prior art, if the data center whose registration information has been deleted initiates a registration request and an arbitration request again, the arbitration server will save the registration information of the data center and judge the data based on the registered information of the data center saved by it. The center can take over the mainframe business. In this way, two data centers will take over the mainframe business at the same time, so that the externally provided mainframe business will be inconsistent.

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