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Main/backup NAS (Network attached storage) switching method and device

A technology of active/standby, switching modules, applied in the direction of response error generation, redundancy in hardware for data error detection, etc., can solve the problems of complex operation and high cost, and achieve the goal of solving complex operation, reducing impact, and ensuring continuous operation. sexual effect

Active Publication Date: 2015-03-11
CHINA CONSTRUCTION BANK
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0008] In order to solve the above technical problems, the present invention provides a method and device for active / standby NAS switching, which not only solves the problems of complex operation and high cost in the existing physical layer switching scheme, but also can quickly and effectively realize active / standby NAS switching

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  • Main/backup NAS (Network attached storage) switching method and device
  • Main/backup NAS (Network attached storage) switching method and device
  • Main/backup NAS (Network attached storage) switching method and device

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Embodiment Construction

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0033] figure 1 It is a schematic flowchart of a method for switching between active and standby NAS according to an embodiment of the present invention. Referring to 1, the method includes:

[0034] 100: Establish a soft link for the primary NAS on the host on which the primary NAS and the standby NAS are mounted, so as to perform data read and write processing on the primary NAS through the soft link.

[0035] Optionally, in an implementation manner of this embodiment, both the primary NAS and the standby NAS are mounted on the host in a mount manner.

[0036] In this embodiment, it is assumed that the primary NAS has been mounted to / home / ap / nas_a, and the standby NAS has been mounted to / home / ap / nas_b. Taking the LINUX environment as an example, you can use the following statement to establish a soft li...

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Abstract

An embodiment of the invention discloses a main / backup NAS (Network attached storage) switching method and a main / backup NAS switching device, wherein the main / backup NAS switching method comprises the following steps of building a flexible link for a main NAS on a host on which the main NAS and a backup NAS are mounted, so as to perform the data reading-writing processing on the main NAS through the flexible link; checking preset check items and judging whether the main NAS is available or not according to the checked result; performing the switching processing if the main NAS is invariable, wherein the switching processing comprises the step of deleting the flexible link for the main NAS and building a flexible link for the backup NAS on the host. By employment of the switching method and device, the switching between the main NAS and the backup NAS is quickly and effectively realized by means of building and deleting the flexible link, and the problems of complicated operations and high cost in the existing physical layer switching scheme are solved. Moreover, according to the main / backup NAS switching method and the main / backup NAS switching device, the switching processing can be performed timely under the conditions of reading-writing anomaly and network anomaly, and the automatic linkage switching of multiple shared units can also be realized.

Description

technical field [0001] The present invention relates to the field of network-attached storage, and more specifically, to a method and device for switching between active and standby NAS. Background technique [0002] Currently, Network Attached Storage (NAS) is gradually being valued by data centers in various industries due to its easy-to-share and easy-to-deploy features. However, it is generally believed in the industry that NAS is inferior to storage area network (Storage Area Network, SAN) in terms of high availability, so the application range of NAS is limited to a certain extent. [0003] To ensure the high availability of the NAS system, there are three common deployment schemes: [0004] Server-side dual NAS (synchronous): In this solution, the host mounts the NAS_A file system and the NAS_B file system, and writes data to the two file systems at the same time. During high availability switchover, the faulty file system is automatically isolated. [0005] Server...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/16
Inventor 吴猛李世宁孙永敬
Owner CHINA CONSTRUCTION BANK
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