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Method and device for detecting link failure

A technology for detecting device and link failure, applied in the field of communication, can solve the problems of incomplete FC link detection and low reliability of FC network, etc.

Inactive Publication Date: 2014-03-26
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Embodiments of the present invention provide a link fault detection method and device to overcome the problem of low reliability of the FC network due to incomplete FC link detection in the prior art

Method used

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  • Method and device for detecting link failure
  • Method and device for detecting link failure

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Embodiment Construction

[0064] 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.

[0065] figure 1 is a schematic structural diagram of a typical SAN network, such as figure 1 As shown, the SAN network includes HBAs, switches, and disk arrays, where the disk array includes a controller and storage. figure 1 In the shown SAN network, the primary link is the first switch (for example, Slot7FC Switch) connected to the first ...

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Abstract

The embodiment of the invention provides a method and device for detecting a link failure. The method comprises the steps that the detecting device collects the state information of corresponding ports of at least two nodes in an optical fiber channel network; the detecting device compares the state information of the corresponding ports of the at least two nodes, and whether the failure exists or not is determined according to a comparison result. According to the method and device for detecting the link failure, the problems that FC link detection in the prior art is not comprehensive, and the reliability of an FC network is low are solved.

Description

technical field [0001] Embodiments of the present invention relate to communication technologies, and in particular to a link fault detection method and device. Background technique [0002] The Fiber Channel (FC for short) protocol is mainly used in the storage field and is a main way for servers to expand storage. The FC network can be specifically divided into a storage area network (Storage Area Network, SAN for short) and a direct attached storage (Direct Attached Storage, DAS for short). Among them, SAN is a high-speed dedicated subnet that connects disk arrays, tapes and other storage devices with related servers through fiber optic hubs, fiber optic routers, fiber optic switches and other connecting devices. In the DAS networking mode, the storage device is directly connected to the server through the cable, and the I / O (input / output) request is directly sent to the storage device. Regardless of the networking, the entire FC link includes multiple network nodes, su...

Claims

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Application Information

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IPC IPC(8): H04L12/26H04B10/075
Inventor 张琦
Owner HUAWEI TECH CO LTD