Method and device for managing double active storage arrays

Abstract

The invention relates to a method and device for managing double active storage arrays. The method comprises the steps of counting the data amount received by a first storage array from a host; receiving the data amount sent by a second storage array of the data amount received by a second storage array from a host; making sure the data amount received by the first storage array from the host is less than the data amount received by the second storage array from the host; when making sure the link between the first storage array and the second storage array fails, sending an arbitrary request to an arbitrary server after delaying for a while, connecting the arbitrary server with the first storage array and the second storage array respectively, and receiving the arbitrary result sent by the arbitrary server; when making sure the link between the second storage array and the arbitrary server is disconnected, making sure the storage array which receives data through storage arrays; when in split-brain condition, storage arrays assigning the storage array which receives larger amount of data from the host to receive data from the host.

Description

technical field [0001] The present invention relates to the field of memory technology, in particular to a method and device for managing a dual-active storage array. 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, including storage data reliability and business continuity. More and more enterprises centralize applications, data, and systems. at risk. Although many storage manufacturers can provide users with highly stable storage devices, they still cannot prevent natural disasters and other emergencies. [0003] When a catastrophic emergency occurs, how to ensure the onlineness of the core business of the enterprise, that is, the uninterrupted operation of the core business 7*24 hours, has become the primary concern of the enterprise. Unplanned dow...

AI Technical Summary

Problems solved by technology

[0007] However, in the existing technology, the arbitration scheme has very high requirements on the reliability of the arbitration server. Once the arbitration server fails or the link between the arbitration server and the two storages fails, a split-brain of the active-active array will cause two Even if the active-active array fails to submit the arbitration, it cannot provide access, causing the host to interrupt the service

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