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Dynamic fault detection system for dual controller disk array

A disk array and dual-controller technology, applied in the transmission system, digital transmission system, data exchange network, etc., can solve problems such as complex calculation process, unsuitable for storage system requirements, and heavy storage system load

Active Publication Date: 2011-01-19
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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

[0048] The present invention will be further described below in conjunction with the drawings and embodiments.

[0049] Such as figure 1 As shown, the embodiment of the present invention is composed of a parallel master controller and a slave controller. The master controller and the slave controller respectively include CPU, Cache, IDE hard disk, serial controller, first gigabit network card and second gigabit Mega NICs, they are interconnected through the PCI bus. The master and slave controllers also include Fibre Channel adapters; the master and slave controllers use the second gigabit NIC to detect heartbeat failures, and perform data through the Fibre Channel adapter. Synchronize;

[0050] The string controller uses the LSI22320 Ultra320 SCSI adapter from LSI Logic, which includes two 320MBps SCSI channels and can provide a channel bandwidth of 640MBps. Each SCSI channel can connect up to 15 SCSI hard disks, and two channels can connect 30 hard disks. At the same time, the ...

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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 specifically relates to a dynamic fault detection system of a dual-controller disk array. Background technique [0002] More and more evidences show that network storage will become the leader of the third IT wave after personal computers and the Internet. Personal computers led the first IT wave, and the Internet interconnected isolated hosts through the network, leading the second IT wave. The first wave and the second wave are centered on data computing, and network storage will lead the third wave of IT centered on data storage. In order to ensure the high availability of the storage system and cope with the increasingly frequent failures, it has become inevitable to perform efficient and accurate detection between multiple nodes or multiple disk array controllers of the storage system. The frequent occurrence of failures has become one of the main problems that plague scientists, e...

Claims

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Application Information

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Patent Type & Authority Patents(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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