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Fault tolerant computer system and interrupt control method for the same

A fault-tolerant computer and computer system technology, applied in the direction of calculation, response error generation, error detection/correction, etc., can solve problems such as system downtime and loss

Inactive Publication Date: 2006-08-23
NEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if a failure occurs in the south bridge, the function of this operating system is completely lost, resulting in system shutdown

Method used

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  • Fault tolerant computer system and interrupt control method for the same
  • Fault tolerant computer system and interrupt control method for the same
  • Fault tolerant computer system and interrupt control method for the same

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Embodiment Construction

[0045] Hereinafter, a fault-tolerant computer system according to the present invention will be described in detail with reference to the accompanying drawings. For example, the fault-tolerant computer system of the present invention can be applied to a server system.

[0046] figure 2 It is a block diagram of the basic configuration of the fault-tolerant computer system according to the present invention. Such as figure 2 As shown, the fault-tolerant computer system of the embodiment has two systems with the same configuration, that is, the primary system #1 and the secondary system #2. The main system #1 and the auxiliary system #2 each include a fault-tolerant (FT) controller 10 (10A, 10B), a CPU (central processing unit) 2 (2A, 2B), a main memory 3, and a south bridge 6 (6A, 6B) , PCI (Peripheral Component Interconnect) bridge 7 (7A, 7B) and I / O device 5 (5A, 5B). Note that the suffix "A" above indicates the primary system, and the other suffix "B" indicates the seco...

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Abstract

A fault tolerant (FT) computer system includes a primary system and a secondary system. The primary system includes a first CPU; a first FT control section connected with the first CPU; and a first south bridge connected electrically and operatively with the first FT control section. The secondary system includes a second CPU; a second FT control section connected with the second CPU; and a second south bridge connected electrically with the second FT control section and not connected operatively with the second FT control section. The first FT control section and the second FT control section are connected by a link section, and the primary system and the secondary system operate in synchronization with each other by using the link section, except for the second south bridge.

Description

technical field [0001] The present invention generally relates to dual controller systems. More specifically, the present invention is directed to a fault-tolerant computer system with dual interrupt control. Background technique [0002] A fault-tolerant computer system is well known as a high-reliability computer system. In a fault-tolerant computer system, all hardware modules of the computer system are duplicated or multiplexed. These hardware modules operate synchronously with each other. Even if a certain part of a hardware module fails, the failed hardware module will be disconnected from the fault-tolerant computer system, and the remaining normal hardware modules will continue to operate. Therefore, anti-failure characteristics are improved. [0003] figure 1 An example of a fault-tolerant computer system configuration is shown. The fault-tolerant computer system of this example is provided with a fault-tolerant (FT) control section 10 and hardware modules, suc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/16G06F13/24
CPCH05K999/99G06F11/1633G06F11/2023G06F11/1658G06F11/165G06F11/2097G06F11/1691
Inventor 阿部晋树
Owner NEC CORP
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