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Write operation processing method and device

A processing method and technology for writing operations, applied in the direction of input/output to record carriers, etc., can solve the problems of increasing disk load, increasing host input and output, increasing resource consumption, etc., to reduce IO delay and reduce disk operation. Effect

Active Publication Date: 2011-02-16
CHENGDU HUAWEI TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the execution efficiency of the write operation is low; when the lowercase algorithm is used, there are still defects of increasing the disk load, increasing the input and output (Input Output; hereinafter referred to as: IO) delay of the host, and increasing resource consumption

Method used

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  • Write operation processing method and device

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Embodiment Construction

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] figure 1 It is a flowchart of an embodiment of the write operation processing method of the present invention, such as figure 1 As shown, this embodiment includes:

[0028] Step 101, after receiving a write operation request, insert the write operation request into a waiting queue according to the receiving time and destination addre...

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Abstract

The embodiment of the invention provides a write operation processing method and a device. The write operation processing method comprises the following steps: after receiving the write operation request, inserting the write operation request into a waiting queue according to the receiving time and destination address of the write operation request; after achieving the preset triggering conditions, inserting the write operation request which is received earliest in the waiting queue and the write operation request which is adjacent to the destination address of the write operation request received earliest into the write operation request list, wherein the write request list comprises at least two write operation requests; splitting the write operation request list into sectional lists according to subsections, wherein the sectional list contains at least two write operation request; and processing at least two write operation requests on the sectional lists in parallel. The embodiment of the invention realizes the parallel processing of at least two write operation requests on the same subsection on the RAID layer, reduces unnecessary bottom wall operation, and reduces the IO time delay of the main engine.

Description

technical field [0001] The present invention relates to the technical field of data storage, in particular to a write operation processing method and device. Background technique [0002] With the explosive growth of stored information, large-capacity, high-efficiency, and high-reliability disk array storage devices using Redundant Array of Independent Disk (hereinafter referred to as: RAID) technology are becoming more and more popular; There are 10 main levels of RAID, among which RAID5 is the most widely used because of its high disk utilization and high reliability. RAID5 adopts the technology of combining striping and disk redundancy. Striping improves access speed, and disk redundancy improves data reliability. [0003] In the storage system, after receiving data blocks with consecutive addresses from the buffer memory (CACHE), the RAID splits the data blocks into small data blocks and sends them to the corresponding disks. Assume that the data blocks sent by the CACH...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06
Inventor 王雪松石兵伟陈建术
Owner CHENGDU HUAWEI TECH
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