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Fault link switching method, system and related equipment

A technology for faulty links and switching systems. It is applied in the storage field and can solve the problems of misjudging the flash as a link failure.

Pending Publication Date: 2022-03-29
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to reduce the service switching time, you can set the driver perception link disconnection time to be relatively small, but if the setting is too small, the flash disconnection may be misjudged as a link failure

Method used

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  • Fault link switching method, system and related equipment
  • Fault link switching method, system and related equipment
  • Fault link switching method, system and related equipment

Examples

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Embodiment Construction

[0051] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present application, not all of them.

[0052] First of all, some terms and related technologies involved in this application are explained in conjunction with the accompanying drawings, so as to facilitate the understanding of those skilled in the art.

[0053] Hosts can deploy various services and applications (such as multipath management services, link awareness services, etc.), which can specifically include physical machines, virtual machines, containers, etc., to deliver services to storage devices, such as application servers, distributed file system server, etc.

[0054] Storage devices can also be called storage arrays, which specifically include devices capable of storing data in the form of external centralized storage o...

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PUM

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Abstract

The invention provides a fault link switching method, a fault link switching system and related equipment. The method comprises the steps that a host receives fault link information sent by a storage device, and at least two links exist between the host and the storage device; and the host switches a service on a fault link corresponding to the fault link information to a normal link in the at least two links according to the fault link information. According to the method, the host can quickly sense the fault link and complete link switching, the link switching time is shortened, and the system reliability is improved.

Description

technical field [0001] The present invention relates to the field of storage technology, in particular to a method, system and related equipment for switching a faulty link. Background technique [0002] The small computer system interface (small computer system interface, SCSI) protocol and the network-based non-volatile storage standard (Non-Volatile memory express over fabrics, NVMe-oF) are commonly used network storage transmission standard protocols. In SCSI networking and NVMe-oF networking scenarios, a storage area network (storage area network, SAN) dedicated to data storage is established by using fiber channel (fiber channel, FC) switches to connect storage devices and server hosts. In the SAN, there are multiple links between the host and the storage device, and the host delivers services through the multiple links in the SAN. If a link fails while the host is delivering services, it needs to switch the service from the failed link to the normal link for delivery...

Claims

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Application Information

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IPC IPC(8): H04L45/28H04L45/243
CPCH04L45/28H04L45/24G06F11/2007G06F11/2005G06F11/0727G06F11/2089
Inventor 程继科
Owner HUAWEI TECH CO LTD
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