Disaster recovery method and system based on multipath and remote replication technology

A remote replication and multi-path technology, applied in the field of storage disaster recovery, can solve problems such as long downtime and complicated switching operations, and achieve the effect of improving high availability, wide application prospects, and reliable design principles

Pending Publication Date: 2021-11-09
济南浪潮数据技术有限公司
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  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the problem of service interruption when a storage failure occurs and when the storage failure is restored, the switching operation is too complicated and the downtime is too long, the present invention provides a disaster recovery method and system based on multi-path and remote replication technology

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  • Disaster recovery method and system based on multipath and remote replication technology
  • Disaster recovery method and system based on multipath and remote replication technology
  • Disaster recovery method and system based on multipath and remote replication technology

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Embodiment Construction

[0055]In order to make those skilled in the art better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0056] WWID: World Wide ID global identifier ID, the unique identifier of the disk, used to distinguish different disks. In multipath, multiple paths of the same disk are aggregated according to the WWID.

[0057] like figure 1 As shown, the embodiment of the present invention provides a disaster recovery method based on m...

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Abstract

The invention provides a disaster recovery method and system based on multipath and remote replication technology, and the method comprises the following steps: carrying out the synchronous remote replication of the volume configuration of each storage device, and marking the global identifiers ID of the volumes with the remote replication relation as the same disk device; respectively mounting the volume of each storage device to a host machine; performing disk scanning by the host machine to obtain a plurality of paths of volumes corresponding to two different global identifiers (ID); aggregating the obtained multiple paths of the two volumes into a virtual volume, dividing the paths into two groups according to two global identifiers (ID), and setting the two groups of paths to be in a main / standby mode; monitoring the state of the main path group, and when the main path group breaks down, automatically switching the path to the standby path group. The high availability of storage can be greatly improved, the complexity of fault switching and back switching is reduced, and the service unavailable time of services is greatly shortened.

Description

technical field [0001] The invention relates to the technical field of storage disaster tolerance, in particular to a disaster tolerance method and system based on multi-path and remote replication technologies. Background technique [0002] The current storage synchronous remote replication technology can only guarantee the data security of the storage in the event of a failure, but cannot guarantee the high availability of the host using the storage. The corresponding storage volume in the storage, and then map the new volume to the host according to the information such as the drive letter of the faulty volume. The overall operation is complex and tedious, requiring a lot of human intervention and operation. The RTO time depends on the time of manual fault detection and fault recovery operations. . [0003] Data synchronization between storage A and storage B is achieved through remote replication technology. When storage A fails or a disaster occurs, failover to storage...

Claims

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Application Information

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IPC IPC(8): G06F3/06G06F11/20
CPCG06F3/0617G06F3/0653G06F3/0662G06F3/0655G06F11/2064
Inventor 焦浩霖马豹亓开元
Owner 济南浪潮数据技术有限公司
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