JPS63288335A - Multi-processor system - Google Patents

Multi-processor system

Info

Publication number
JPS63288335A
JPS63288335A JP62124787A JP12478787A JPS63288335A JP S63288335 A JPS63288335 A JP S63288335A JP 62124787 A JP62124787 A JP 62124787A JP 12478787 A JP12478787 A JP 12478787A JP S63288335 A JPS63288335 A JP S63288335A
Authority
JP
Japan
Prior art keywords
diagnosis
processor
common bus
fault
time
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP62124787A
Other languages
Japanese (ja)
Inventor
Narihisa Nakagawa
中川　成久
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Priority to JP62124787A priority Critical patent/JPS63288335A/en
Publication of JPS63288335A publication Critical patent/JPS63288335A/en
Pending legal-status Critical Current

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  • Hardware Redundancy (AREA)
  • Multi Processors (AREA)

Abstract

PURPOSE:To execute a fault diagnosis without exerting an influence on an existing system at all, and also, in a short time, by providing a diagnosis exclusive time division common bus. CONSTITUTION:For instance, in the case of diagnosing a fault of a processor 142, this processor 142 is set to an out-of-service and detached from existing and stand-by duplex time division common buses 11, 12 and the diagnosis is performed through a diagnosis exclusive time division common bus 13 from a maintenance operation processor 10. In such a way, the diagnosis of a fault can be executed without exerting an influence on an existing system, and also, in a short time.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は現用および予備の二重化時分割共通バスに接続
された複数のプロセッサを備えるマルチプロセッサシス
テムに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a multiprocessor system comprising a plurality of processors connected to a working and standby duplex time-sharing common bus.

〔従来の技術〕[Conventional technology]

従来、この種のシステムでは、障害プロセッサの診断時
に二重化された時分割共通バスの予備側をアウトオブサ
ービス状態にして保守運転プロセッサから障害プロセッ
サを診断している。Conventionally, in this type of system, when diagnosing a faulty processor, the spare side of the duplexed time-division common bus is placed out of service, and the faulty processor is diagnosed from the maintenance operation processor.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

したがって、診断中に現用で使用している時分割共通バ
スが障害になった場合、システムダウンを免れない。Therefore, if the time-division common bus currently in use becomes faulty during diagnosis, the system will inevitably go down.

〔問題点を解決するための手段〕[Means for solving problems]

本発明のマルチプロセッサシステムは現用および予備の
二重化時分割共通バスに接続された複数のプロセッサを
診断専用の共通バスに接続し障害診断を行うことを特徴
とする。The multiprocessor system of the present invention is characterized in that a plurality of processors connected to active and standby duplex time-division common buses are connected to a common bus dedicated to diagnosis to perform fault diagnosis.

〔実施例〕〔Example〕

次に、本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.

本発明の一実施例のマルチプロセッサシステムは保守運
転プロセッサ１０、現用および予備の二重化時分割共通
バス１１，１２、診断専用の時分割共通バス１３、プロ
セッサ１４１，１４２〜１４ｎにより構成されている。A multiprocessor system according to an embodiment of the present invention is comprised of a maintenance operation processor 10, active and backup redundant time-division common buses 11 and 12, a time-division common bus 13 dedicated to diagnosis, and processors 141 and 142 to 14n.

たとえば、プロセッサ１４２を障害診断する場合、この
プロセッサ１４２をアウトオブサービスにして現用およ
び予備の二重化時分割共通バス１１．１２から切離し、
保守運転プロセッサ１０から診断専用の時分割共通バス
１３を介して診断を実施する。For example, when diagnosing a fault in the processor 142, the processor 142 is taken out of service and disconnected from the active and backup duplex time-sharing common bus 11.12.
Diagnosis is carried out from the maintenance operation processor 10 via a time-sharing common bus 13 dedicated to diagnosis.

〔発明の効果〕〔Effect of the invention〕

以上説明したように本発明によれば、診断専用の時分割
共通バスを設けることにより、現用系に影響なくかつ短
時間に障害診断を行うことができ、システムの信頼度を
向上できる。As described above, according to the present invention, by providing a time-division common bus dedicated to diagnosis, fault diagnosis can be performed in a short time without affecting the active system, and the reliability of the system can be improved.

【図面の簡単な説明】[Brief explanation of drawings]

図は本発明の一実施例を示す構成図である。 １０・・・保守運転プロセッサ、１１．１２・・・二重
化時分割共通バス、１３・・・診断専用の時分割共通バ
ス、１４１，１４２〜１４ｎ・・・プロセッサ。 代理人　弁理士　　内　原　　音 ７少−・ ’／、’、：ミーThe figure is a configuration diagram showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 10... Maintenance operation processor, 11. 12... Duplex time-sharing common bus, 13... Time-sharing common bus dedicated to diagnosis, 141, 142-14n... Processor. Agent Patent Attorney Uchihara Oto7sho-・'/,',:Me

Claims (1)

【特許請求の範囲】[Claims] 現用および予備の二重化時分割共通バスに接続された複
数のプロセッサを診断専用の共通バスに接続し障害診断
を行うことを特徴とするマルチプロセッサシステム。A multiprocessor system characterized in that a plurality of processors connected to active and backup redundant time-sharing common buses are connected to a common bus dedicated for diagnosis to perform fault diagnosis.
JP62124787A 1987-05-20 1987-05-20 Multi-processor system Pending JPS63288335A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62124787A JPS63288335A (en) 1987-05-20 1987-05-20 Multi-processor system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62124787A JPS63288335A (en) 1987-05-20 1987-05-20 Multi-processor system

Publications (1)

Publication Number Publication Date
JPS63288335A true JPS63288335A (en) 1988-11-25

Family

ID=14894113

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62124787A Pending JPS63288335A (en) 1987-05-20 1987-05-20 Multi-processor system

Country Status (1)

Country Link
JP (1) JPS63288335A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03280149A (en) * 1990-03-29 1991-12-11 Koufu Nippon Denki Kk Carrier device for sheet paper or the like

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03280149A (en) * 1990-03-29 1991-12-11 Koufu Nippon Denki Kk Carrier device for sheet paper or the like

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