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Internal storage mirroring method, device and system

A memory mirroring and processing device technology, applied in the storage field, can solve the problems of increasing data storage delay and heavy CPU operation load, and achieve the effect of reducing operation burden, reducing delay, and reducing the number of copies

Active Publication Date: 2010-11-03
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the CPU needs to deal with communication details in the process of controlling data mirroring, and the CPU operation load is heavy; moreover, data needs to be copied multiple times in the process of writing to the local controller and mirroring to the peer controller operation, thus increasing the latency of data storage

Method used

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  • Internal storage mirroring method, device and system
  • Internal storage mirroring method, device and system
  • Internal storage mirroring method, device and system

Examples

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Embodiment Construction

[0027] 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 creative efforts fall within the protection scope of the present invention.

[0028] figure 1 It is a schematic structural diagram of an embodiment of the memory image processing device of the present invention, such as figure 1 As shown, the device of this embodiment includes: a memory interface module 11, a communication interface module 13, and an image processing module 14, wherein the memory interface module 11 is use...

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Abstract

The embodiment of the invention provides an internal storage mirroring method, device and system. The method comprises the following steps: a standard internal storage interface provided by an internal storage interface module is used to receive the data to be written in a write request command; and if the write request command is an external request accessing a controller on the opposite terminal, a communication interface module is used to transmit the data which are required to copy in the data to be written to the internal storage mirroring device on the opposite terminal so that the internal storage mirroring device of the controller on the opposite terminal performs backup and processing to the data required to copy. In the embodiment of the invention, the burden of operation of the CPU is low and the delay of data storage is low as well.

Description

technical field [0001] The present invention relates to the field of storage technology, in particular to a memory mirroring processing method, device and system. Background technique [0002] In order to optimize system performance, the storage controller sets a certain capacity of memory as a cache (Cache), and after storing the data in the Cache, it can feed back the response to the host, thereby reducing the delay of host access. However, the memory is a volatile storage medium, and it is easy to lose data when the power fails or the storage controller fails, and the storage controller cannot guarantee the reliability of the stored data. [0003] In order to solve this problem, a storage controller in the prior art may include two or more controllers, and these controllers may be connected by a mirror link for transmitting mirror data. When writing data into the Cache of the local controller in the storage controller, the central processing unit (Central Processing Unit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/14
CPCG06F11/2097G06F11/1658G06F11/2038
Inventor 罗姣林
Owner HUAWEI TECH CO LTD
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