Method for improving writing efficiency of virtual storage system and virtual storage system thereof

A virtual storage and storage array technology, applied in the field of virtual storage, can solve the problems of low write operation efficiency and long write IO paths, and achieve the effect of avoiding data loss, ensuring reliability, and shortening write IO paths.

Active Publication Date: 2010-09-22
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The disadvantage of writing data directly to the storage array without caching is that the write IO path is long and the write operation efficiency is low.

Method used

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  • Method for improving writing efficiency of virtual storage system and virtual storage system thereof
  • Method for improving writing efficiency of virtual storage system and virtual storage system thereof
  • Method for improving writing efficiency of virtual storage system and virtual storage system thereof

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Embodiment Construction

[0035] Aiming at the problem of low write operation efficiency caused by the lack of a write cache function in the prior art when the controllers are separated, a feasible solution is to configure a cache medium for each controller, and the controller receives After writing an IO request, first write the data to the cache medium, and then write the data in the cache medium to the storage array. However, this approach has low reliability and is likely to cause data loss, because when the controller fails, its corresponding cache medium will also be shut down, and the cached data in the cache medium will disappear accordingly.

[0036] In order to improve the write operation efficiency of the virtual storage system and ensure the reliability of the virtual storage system, the invention provides an improved virtual storage system. image 3 A schematic structural diagram of an exemplary virtual storage system in the present invention is shown. In addition to two separate controlle...

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Abstract

The invention provides a method for improving the writing efficiency of virtual memory systems, as well as a virtual memory system. The virtual memory system comprises at least two controllers which back up each other and are separately arranged, a switch, a memory array and cache media in one-to-one correspondence to the controllers, wherein after the controllers receive a writing IO request, data are first written into the cache media, and then the corresponding data in the cache media are written into the memory array. In addition, when the other controller breaks down, the broken-down controller is written into the data in the own corresponding cache media and is refreshed to the memory array. The method can improve the writing operation efficiency of the virtual memory system under the condition that the controllers are separately arranged.

Description

technical field [0001] The invention relates to virtual storage technology, in particular to a method for improving write efficiency of a virtual storage system and a virtual storage system. Background technique [0002] With the continuous development of computer technology and related information processing technology, people's demand for storage is getting higher and higher. This demand stimulates the emergence of various new technologies, among which the more typical one is virtual storage technology. The so-called virtual storage technology refers to the unified management of multiple storage devices to provide users with a storage system with large capacity and high data transmission performance. [0003] figure 1 It shows a schematic structural diagram of a virtual storage system in the prior art, including two controllers A and B, a switch, and a storage array as backups for each other, wherein the controllers A and B are interconnected with each storage array throu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06G06F12/08
Inventor 胡荣国
Owner NEW H3C TECH CO LTD
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