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Storage multipath selection method and device

A multi-path and path technology, which is applied in the direction of instruments, electrical digital data processing, input/output to record carriers, etc., can solve problems such as business impact and path delay without consideration, and achieve the effect of ensuring stable operation and performance assurance

Pending Publication Date: 2022-03-11
NEW H3C BIG DATA TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0010] The present application provides a storage multi-path routing method and device to solve the problem in the prior art that the service is affected due to the lack of consideration of the path delay

Method used

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  • Storage multipath selection method and device

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Embodiment Construction

[0054] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, rather than limiting the present application. As used in this application and the claims, the singular forms "a", "the" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used herein is meant to include any and all possible combinations of one or more of the associated listed items.

[0055]It should be understood that although the embodiments of the present application may use terms such as first, second, and third to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of the present application, first information may also be called second information, and similarly, second i...

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Abstract

The invention relates to the technical field of data storage, in particular to a storage multipath selection method and device. The method is applied to a host, the host and a storage server are stored based on multiple paths, and the method comprises the following steps: counting path delay information of the multiple paths and average path delay information of the multiple paths; on the basis of the path delay information of each path and the average path delay information of the multiple paths, whether each path is a high-delay path or not is judged, and if one path is marked as the high-delay path, the path is not selected to serve as a storage path for use during follow-up path selection; and executing the storage service by adopting other paths except for the path marked as the high latency path.

Description

technical field [0001] The present application relates to the technical field of data storage, and in particular to a storage multipath routing method and device. Background technique [0002] Most mainstream storage uses the ALUA mode, mainly to make full use of the advantages of multiple storage controllers, plan the optimal path status from the storage controller to the host, and cooperate with the host multipath multipath-tools to achieve optimal storage path selection, load balance and improve I / O performance. [0003] multipath-tools has a concept of optimal path group when selecting I / O routes. Normally, each path has a priority, and paths with the same priority are in the same path group. The group of high-priority paths is called the preferred path group, and the group of low-priority paths is called the backup path group. I / O is performed on the preferred path group. [0004] If the multipaths on the storage array are configured in ALUA mode, usually the host ...

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Application Information

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IPC IPC(8): G06F3/06
CPCG06F3/061G06F3/0635G06F3/0676
Inventor 王勇
Owner NEW H3C BIG DATA TECH CO LTD
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