Mirror image volume repairing method, device and system of storage system and readable storage medium

A technology of a storage system and a repair method, which is applied in the field of mirror volume repair of a storage system and computer-readable storage media, can solve problems such as data differences, data backup consistency, integrity and reliability reduction, and achieve the goal of improving consistency Effect

Active Publication Date: 2019-04-02
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to media errors and other reasons, the data stored in the two volumes of the mirror

Method used

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  • Mirror image volume repairing method, device and system of storage system and readable storage medium
  • Mirror image volume repairing method, device and system of storage system and readable storage medium
  • Mirror image volume repairing method, device and system of storage system and readable storage medium

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Embodiment Construction

[0039] Embodiments of the present invention provide a method, device, system, and computer-readable storage medium for repairing mirrored volumes of a storage system, which can keep the data of two volumes in the mirrored volume consistent during use and improve the consistency of data backup , integrity and reliability.

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0041] Please refe...

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PUM

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Abstract

The embodiment of the invention discloses a mirror image volume repairing method, device and system of a storage system and a computer readable storage medium, and the method comprises the steps: detecting the states of two volumes in a mirror image volume, and determining a normal volume and an abnormal volume when the state of one volume is abnormal; dividing the normal volume into N first areasaccording to a preset division mode, dividing the abnormal volume into N second areas, the first areas and the second areas are in one-to-one correspondence, and N is not smaller than 2; judging whether the data in each first area is consistent with the data in the corresponding second area or not, and if not, covering the data in the target second area by adopting the data in the target first area, wherein the first area and the corresponding second area which are inconsistent in data serve as a target first area and a target second area respectively. According to the method and the device,the data of the two volumes in the mirror image volume can be kept consistent in the use process, and the consistency, integrity and reliability of data backup are improved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of storage systems, and in particular, relate to a method, device, system, and computer-readable storage medium for repairing a mirrored volume of a storage system. Background technique [0002] In storage systems, mirroring is a common data backup method. The mirror volume is composed of two volumes (primary volume and secondary volume), and the two volumes are kept in real-time synchronization. When a write operation is performed, data will be written to the two volumes at the same time. However, due to reasons such as media errors, the data stored in the two volumes of the mirrored volume may differ, resulting in reduced consistency, integrity and reliability of data backup. [0003] In view of this, how to provide a method, device, system, and computer-readable storage medium for repairing mirrored volumes of a storage system that solve the above-mentioned technical problems has be...

Claims

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Application Information

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IPC IPC(8): G06F11/10G06F11/14
CPCG06F11/1004G06F11/1448
Inventor 邢云阳
Owner ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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