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Data writing mirroring system, method, device, electronic equipment and storage medium

A data writing and mirroring technology, applied in the field of data processing, can solve problems such as large memory space and bus bandwidth, and achieve the effect of saving write cache data stability

Active Publication Date: 2022-05-20
SUZHOU METABRAIN INTELLIGENT TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the four-copy full mirroring method solves the problem that 1 / 2 / 3 controllers are broken at the same time, the full mirroring needs to save four copies of the same copy at the same time, which requires a large memory space and bus bandwidth.

Method used

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  • Data writing mirroring system, method, device, electronic equipment and storage medium
  • Data writing mirroring system, method, device, electronic equipment and storage medium

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Embodiment Construction

[0038] 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.

[0039] In order to facilitate the understanding of the embodiments of the present invention, further explanations will be given below with specific embodiments in conjunction with the accompanying drawings, which are not intended to limit the embodiments of the present invention.

[0040] Figure 4 A schematic diagram of the system architect...

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Abstract

The present invention relates to a data writing mirroring system, method, device, electronic equipment and storage medium. The system includes: at least two memory expansion cards, multiple controllers, and multiple controller CPUs, wherein the memory expansion card Set in the IO slot; each controller is provided with a controller CPU, and the number of the controllers is the same as the number of the controller CPUs; the plurality of controllers are connected to the at least two memory expansion cards respectively connection; the memory space of each memory expansion card is divided according to the number of controllers, and the corresponding memory space is divided for each controller, so that the system can realize the stability of write cache data while saving memory space resources.

Description

technical field [0001] The invention relates to the field of data processing, in particular to a data writing mirroring system, method, device, electronic equipment and storage medium. Background technique [0002] Because storage products have very high requirements on data reliability and storage performance, before data is written to the hard disk, it needs to be cached in the memory. When the system is idle or the cached data reaches a certain level, a separate CPU thread will The cached data is written to the hard disk. However, the data in the cache is not safe. When the system is powered off or the controller suddenly fails, it must be able to write the data in the cache to the hard disk. When the system is powered off, the BBU battery can be used to supply power to the system to ensure the cached data. It is safe to write to the hard disk, but when the controller suddenly fails, in the current storage system, the double write technology is usually used to ensure tha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06
CPCG06F3/0608G06F3/0625G06F3/0631G06F3/0644G06F3/0658G06F3/0676Y02D10/00
Inventor 詹建平邹雨宋开鑫
Owner SUZHOU METABRAIN INTELLIGENT TECH CO LTD
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