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Method and system for accessing asynchronous logic unit

A technology of asynchronous logic and logic unit, which is applied in the field of storage management and can solve problems such as difficulty in implementing AA mode

Active Publication Date: 2017-11-10
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is more difficult to implement the AA mode in the above two methods, and only a few storage manufacturers implement AA mode control; the AP mode cannot maximize the performance of hardware devices, and it is not an optional way to formulate a front-end controller multipath strategy

Method used

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  • Method and system for accessing asynchronous logic unit
  • Method and system for accessing asynchronous logic unit
  • Method and system for accessing asynchronous logic unit

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Embodiment Construction

[0048] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0049] A method and system for accessing an asynchronous logic unit provided in this application can be applied in the following hardware scenarios:

[0050] Please refer to figure 1 , figure 1 It is a schematic diagram of a hardware environment in which a method for accessing an asynchronous logic unit provided in this application includes a client...

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PUM

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Abstract

The invention discloses a method for accessing an asynchronous logic unit. The method comprises the following steps: querying path information of IO paths of accessing the logic unit in a storage terminal by a client, wherein the path information comprises priority information of the IO paths; setting the IO path having the highest priority as a preferred path according to the priority information; sending IO data through the preferred path; and monitoring the sending condition of the IO data, and correcting the IO path according to the sending condition. By adoption of the method, the efficiency of the hardware device can be maximally practiced, the performance of sending the IO data is improved, and the competitiveness of the product is improved. The invention further discloses a system for accessing the asynchronous logic unit, and the system has the above beneficial effects.

Description

technical field [0001] The invention relates to the field of storage management, in particular to a method and system for accessing an asynchronous logic unit. Background technique [0002] A storage device is a device that carries a large amount of data, so a large number of users will access the storage device. In some industries that rely heavily on stored data, once a storage device fails, it will have a huge impact. In order to solve this problem, generally speaking, various components of many storage devices are considered redundant, which can eliminate the single point of failure of the controller. When controller redundancy occurs, which controller to choose and which path to use involves how to formulate a front-end controller multipath strategy. [0003] In the prior art, there are three front-end controller strategies of AA, AP and ALUA. Among them, AA (Symmetric Active / Active) Symmetrical Active mode, all controllers are active, and can access the storage logi...

Claims

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Application Information

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IPC IPC(8): G06F3/06
CPCG06F3/061G06F3/0635
Inventor 肖健明
Owner ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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