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Method, device and equipment for writing IO based on RAID strip and readable medium

A RAID stripe and RAID disk technology, applied in the field of write IO based on RAID stripe, can solve the problems affecting the performance of RAID large block write IO, and achieve the effect of improving bandwidth, improving performance, and reducing write latency

Active Publication Date: 2021-12-17
SUZHOU LANGCHAO INTELLIGENT TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This seriously affects the performance of RAID bulk write IO

Method used

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  • Method, device and equipment for writing IO based on RAID strip and readable medium
  • Method, device and equipment for writing IO based on RAID strip and readable medium
  • Method, device and equipment for writing IO based on RAID strip and readable medium

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Embodiment Construction

[0040] In order to make the object, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0041] Based on the above purpose, the first aspect of the embodiments of the present invention proposes an embodiment of a method for writing IO (input output) based on RAID stripes. figure 1 Shown is a schematic flow chart of the method.

[0042] Such as figure 1 As shown in , the method may include the following steps:

[0043] S1 tests the RAID (Redundant Array of Independent Disks) disks and classifies the disks based on the test results.

[0044] The test interval can be set as required, and can also be dynamically adjusted according to disk pressure changes. If the pressure between the disks varies greatly, the results of the two tests may vary greatly, so the test interval is reduced by half,...

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Abstract

The invention provides a method, a device and equipment for writing IO based on an RAID stripe and a readable medium. The method comprises the following steps: testing RAID disks, and grading the disks based on a test result; dividing the system state according to a preset performance index; and in response to the received writing IO request and the condition that the system state is a preset state, performing different processing on the blocks in the RAID strip according to the disk level. By using the scheme of the invention, the write-in time delay of the RAID stripe IO can be reduced, the bandwidth of the data is improved, and the performance of the storage system is improved.

Description

technical field [0001] This field relates to the field of computers, and more specifically relates to a method, device, device and readable medium for writing IO based on RAID stripes. Background technique [0002] In cloud computing data centers, the performance of data storage is the core issue that users care about. The RAID of the storage system is divided according to stripes, and the RAID stripes are divided according to the stripes of each disk block. The write task of a RAID stripe will be converted into the write task of multiple disk partitions, and the IO task of the RAID stripe will be completed after the write tasks of all disk partitions are completed. However, since the writing performance of each disk is different, and the busyness of each disk is also different, this results in a very large difference in the writing task performance of each disk block corresponding to the same stripe writing task. And only after the slowest disk block write task is complet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06G06F11/22
CPCG06F3/0611G06F3/0613G06F3/0689G06F3/0629G06F11/2205G06F11/2273Y02D10/00
Inventor 邸忠辉刘丹
Owner SUZHOU LANGCHAO INTELLIGENT TECH CO LTD
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