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Four-control all-flash storage system and fault processing method and device thereof

A fault handling method and storage system technology, applied in the field of controllers, devices, four-control all-flash storage systems and their fault handling methods, can solve problems such as unsatisfied and not affecting hard disk access, and achieve the goal of improving stability and reliability Effect

Active Publication Date: 2020-11-27
北京浪潮数据技术有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of this application is to provide a four-control all-flash storage system and its fault handling method, device, and controller to solve the problem that current storage solutions cannot meet A problem that does not affect hard disk access when two controllers fail

Method used

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  • Four-control all-flash storage system and fault processing method and device thereof
  • Four-control all-flash storage system and fault processing method and device thereof
  • Four-control all-flash storage system and fault processing method and device thereof

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Embodiment 1

[0042] The following describes an embodiment of a four-control all-flash storage system provided by the present application, see figure 1 , embodiment one includes:

[0043] a first controller and a second controller belonging to the first fault domain, a third controller and a fourth controller belonging to the second fault domain;

[0044] A hard disk adapter board connected to the first controller, the second controller, the third controller, and the fourth controller;

[0045] a first hard disk group and a second hard disk group connected to the hard disk adapter board;

[0046] Wherein, both the first controller and the second controller are electrically connected to the first hard disk group, and the third controller and the fourth controller are both electrically connected to the second hard disk group; When both the first controller and the second controller fail, the third controller controls the third controller by in-band modifying the configuration information of...

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Abstract

The invention discloses a four-control all-flash storage system. The system comprises four controllers and two hard disk groups. After two controllers belonging to the same fault domain fail, the configuration information of the PCIE Switch chip in the hard disk adapter plate is modified by using the normally working controller, so that the hard disk connected with the fault controller is taken over, the problem that the hard disk cannot be normally accessed after the two controllers fail is avoided, and the stability and reliability of the storage system are improved. In addition, the invention further provides a fault processing method and device for the four-control all-flash storage system and a controller, and the technical effect of the fault processing method and device correspondsto the technical effect of the method.

Description

technical field [0001] The present application relates to the field of storage technology, in particular to a four-control all-flash storage system and its fault handling method, device, and controller. Background technique [0002] SAS or NVME drives are usually dual-ported and can be connected to two controllers at the same time. When one controller fails, the other controller can continue to access the hard disk. But in occasions with higher requirements, it is required that when two controllers fail or even three controllers fail, access to the hard disk cannot be affected. A dual-port SSD can only be connected to two controllers at the same time. In traditional designs, the failure of two or three controllers will inevitably lead to the loss of the hard disk. [0003] It can be seen that how to provide a storage solution that does not affect hard disk access when two or even three controllers fail is an urgent problem to be solved by those skilled in the art. Conten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
CPCG06F3/0614G06F3/0658
Inventor 徐强陈洪鑫韩舒
Owner 北京浪潮数据技术有限公司
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