A method and storage system supporting virtualized disk dual-controller switching

A storage system and virtualization technology, applied in the field of supporting virtualized disk dual-control switching, method and storage system, can solve problems such as data destruction and complex processing, and achieve the effect of avoiding access control

Active Publication Date: 2020-01-14
ZHEJIANG UNIVIEW TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this solution, the processing of switching and restoring the virtualized disk is complicated, and if the information of the controllers recorded in the virtualized disk fails to be read or is wrong, the virtualized disk may be used by both controllers at the same time, resulting in data destruction

Method used

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  • A method and storage system supporting virtualized disk dual-controller switching
  • A method and storage system supporting virtualized disk dual-controller switching

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Embodiment Construction

[0018] Aiming at the problems mentioned in the background art, the present invention provides a new solution for supporting dual-controller switching of virtualized disks. This solution does not need to record the storage controller that the virtualization disk currently belongs to in the virtualization disk, but establishes an iscsi connection between the storage controller and the virtualization disk, and which storage controller has the right to access and control the virtualization disk ; A storage controller without access control authority cannot successfully establish an iscsi connection with the virtualized disk. The following will be described in detail through specific embodiments.

[0019] The storage system supporting dual-control switching of virtualized disks of the present invention includes: a first storage controller and a second storage controller. figure 2 The flow chart of the embodiment of the present invention shown.

[0020] Step S11 , initially, the ...

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Abstract

The invention provides a method for supporting dual-control switching of a virtualized disk. The method comprises: when a first storage controller does not have a fault, establishing a connection between the first storage controller as an iniatiator end and the virtualized disk as a target end by using a first IP address, and obtaining an access control right of the virtualized disk; when the first storage controller has a fault, establishing an iscsi connection between the second storage controller as the iniatiator end and the virtualized disk as the target end by using the loaded first IP address, and obtaining the access control right of the virtualized disk; and when the fault of the first storage controller is recovered, removing the established iscsi connection between the second storage controller and the virtualized disk, releasing the first IP address, establishing the iscsi connection between the first storage controller and the virtualized disk by using the first IP address, and obtaining the access control right of the virtualized disk. According to the scheme, compared with a mode for recording attribution information in the virtualized disk, the method is simple and not liable to cause errors, and can effectively ensure data security.

Description

technical field [0001] The invention relates to the field of storage technologies, in particular to a method and a storage system for supporting dual-control switching of virtualized disks. Background technique [0002] The storage controller can integrate third-party heterogeneous storage devices in a certain way through storage virtualization technology to overcome the physical limitations and differences of hardware devices and provide storage resources to the upper layer in a unified manner. The consolidated third-party disks are called virtualized disks. Generally, the virtualization technology is based on the initiator-target method, in which the storage controller is used as the initiator, and the third-party heterogeneous storage device is used as the target. [0003] In a storage dual-controller environment, when a storage controller fails and cannot provide services to the upper layer, its services can be switched to another storage controller to ensure the minimu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F12/14
Inventor 熊小兰
Owner ZHEJIANG UNIVIEW TECH CO LTD
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