Method and device for detecting discs

A disk detection and disk technology, applied in the storage field, can solve problems such as waste of resources, slow IO response in a short period of time, and unfavorable normal operation of the array, and achieve the effect of ensuring normal operation.

Active Publication Date: 2011-08-10
CHENGDU HUAWEI TECH
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Problems solved by technology

In some business scenarios, if the real-time requirements of the business host are high, it may also cause business interruption
[0003] In the prior art, the disk that executes the IO request timeout is usually determined as a failed disk, and a normal disk is used instead of the disk to continue working, and the disk may be due to an abnormal external environment, resulting in a short-term IO response slow, on

Method used

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  • Method and device for detecting discs
  • Method and device for detecting discs
  • Method and device for detecting discs

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[0025] The technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0026] See figure 2 An embodiment of the disk detection method in the embodiment of the present invention includes:

[0027] 100. When the disk completes the data read and write operation, calculate the response time for the disk to perform the data read and write operation;

[0028] Specific, such as figure 1 As shown, the storage controller and a large number of disks form a storage array together to provide data storage services to the outside world, and the business host reads and write...

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Abstract

The embodiment of the invention discloses a method for detecting discs, comprising the following steps: calculating the response time the discs need to perform the data read-write operation when the discs finish the operation; making the discs offline when the response time exceeds the preset time threshold value; and detecting the off-line discs to judge whether the discs are out of work. The embodiment of the invention also discloses a disc detection device and a storage controller. The embodiment of the invention can distinguish disks which get out of work for the time being but can still be used from the discs really out of work.

Description

technical field [0001] The invention relates to the storage field, in particular to a disk detection method and device. Background technique [0002] A disk array combines a large number of disks to provide external storage services through a storage controller. The service host is connected to the disk array, and stores data in or reads data from the disks in the disk array. The business host has set a timeout period for each IO request, and if the execution time of the IO request expires, the execution will fail. When there is a disk failure in the disk array, the IO response is slow. It may happen that the business host sends ten IO request commands, but the disk only processes one in time, and the other nine IO request commands fail to execute. Then the nine IO request commands may be lost. In some business scenarios, if the real-time requirements of the business host are high, business interruption may also be caused. [0003] In the prior art, the disk that execute...

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Application Information

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IPC IPC(8): G06F3/06G06F11/22
Inventor 李步蟾晏大洪
Owner CHENGDU HUAWEI TECH
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