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Dynamic fault detection system for dual controller disk array

A technology for disk array and fault detection, applied in transmission systems, digital transmission systems, data exchange networks, etc.

Active Publication Date: 2009-06-24
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention proposes a dynamic fault detection system of a dual-controller disk array, which solves the problem that the existing dynamic heartbeat fault detection system requires a large amount of sample information or requires samples to meet a specific probability distribution, the load of the storage system is relatively large, and the calculation process is complicated and difficult. Stable, causing problems that are not suitable for storage system needs

Method used

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  • Dynamic fault detection system for dual controller disk array
  • Dynamic fault detection system for dual controller disk array
  • Dynamic fault detection system for dual controller disk array

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Embodiment Construction

[0049] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0050] Such as figure 1 As shown, the embodiment of the present invention is composed of a parallel master controller and a slave controller, and the master controller and the slave controller respectively include a CPU, a Cache, an IDE hard disk, a serial controller, a first gigabit network card and a second gigabit network card. Gigabit network cards, they are interconnected through the PCI bus, the master controller and the slave controller also include fiber channel adapters; the heartbeat fault detection is performed between the master controller and the slave controller through the second Gigabit network card, and the data is transmitted through the fiber channel adapter. Synchronize;

[0051] The serial controller uses LSI22320 Ultra320 SCSI adapter of LSI Logic Company, which includes two 320MBps SCSI channels, which can provide channel bandwid...

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Abstract

Disclosed is a dynamic fault detection system for a double-controller disk array, belonging to computer storage technical field and solving the problems that a current fault detection system requires large amount of sample information or demands the sample to meet a specific probability distribution and is large in load of the storage system and complicated in calculation process and is unstable. The dynamic fault detection system consists of a primary controller and a secondary controller which are parallel; palpitation fault detection is carried out between the primary controller and the secondary controller through a second kilomega Ethernet interface and data synchronization is carried out between the primary controller and the secondary controller through an optical-fibre channel; and a palpitation module, an information monitoring module, a fault switching module and a service monitoring module are respectively loaded on the primary controller and the secondary controller. The dynamic fault detection system adopts double palpitation detection mechanisms to avoid single-point fault caused by failure of single palpitation detection. A dynamic palpitation setting mechanism is adopted, thus reducing the spending of the system; the fault switching process and the fault recovery process are totally transparent to the user; all the functional modules act on the application layer, so the system is easy to realize and use and has good flexibility and expansibility.

Description

technical field [0001] The invention belongs to the technical field of computer storage, and in particular relates to a dynamic fault detection system of a dual-controller disk array. Background technique [0002] More and more evidence shows that network storage will become the leader of the third wave of IT after personal computer and Internet. Personal computers led the first wave of IT, and the Internet led the second wave of IT by interconnecting isolated hosts through the network. The first wave and the second wave centered on data computing, while network storage will lead the third IT wave centered on data storage. In order to ensure the high availability of the storage system and cope with increasingly frequent failures, it is necessary to perform efficient and accurate detection between multiple nodes or multiple disk array controllers of the storage system. The frequent occurrence of faults has become one of the main problems plaguing scientists, engineers and s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/26H04L12/24H04L29/08
Inventor 冯丹万亚平曾令仿陈俭喜毛波吴素贞
Owner HUAZHONG UNIV OF SCI & TECH
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