JPS63266549A - Automatic system switching system - Google Patents

Automatic system switching system

Info

Publication number
JPS63266549A
JPS63266549A JP62099727A JP9972787A JPS63266549A JP S63266549 A JPS63266549 A JP S63266549A JP 62099727 A JP62099727 A JP 62099727A JP 9972787 A JP9972787 A JP 9972787A JP S63266549 A JPS63266549 A JP S63266549A
Authority
JP
Japan
Prior art keywords
communication control
computer
control processing
processor
switching
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
JP62099727A
Other languages
Japanese (ja)
Inventor
Hiroaki Harada
原田 博昭
Hiromichi Ogata
緒方 博通
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP62099727A priority Critical patent/JPS63266549A/en
Publication of JPS63266549A publication Critical patent/JPS63266549A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To shorten the duration of a trouble and to quickly recover the trouble by switching automatically a faulty communication control processor to a spare one and grasping immediately the state of a working computer via a stand-by computer. CONSTITUTION:The fault of a communication control processor is detected with use of another communication control processor set for the on-line processing and based on the fault report given from the processor or a no- answer state of a fixed time. A computer which detects the fault informs this fault to other computers and switches the faulty processor to a spare communication control processor 143. Receiving the occurrence of the fault, a stand-by computer 13 changes the working state of the control processor in case the stand-by state is released and the computer 13 is used. Thus the faulty processor is automatically switched to the processor 143 so that the duration of a trouble is shortened. Furthermore the recovery is not required for the working state of the processor when the computers are switched since the working state of the processor is informed before the switch of the computers. Thus the trouble recovery time is also shortened.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、情報処理に係り、特に高信頼性を要求される
データ処理システムに好適な自動システム切換え方式に
関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to information processing, and particularly to an automatic system switching method suitable for data processing systems that require high reliability.

〔従来の技術〕[Conventional technology]

従来の自動システム切換え方式は特公昭61−4129
号公報に記載のよ5に計算機の障害に対しては配慮され
ており、自動的にシステムを切換えてオンライン処理の
停止時間を最小限に抑えて稼動率を向上させるようにな
っていた。しかし、計算機障害と同じようにオンライン
処理の停止となる通信制御処理装置の障害については配
慮されていなかった。通信制御処理装置は端末、ネット
ワークシステムと計算機間のデータ伝送を制御する装置
であり、通信制御処理装置の障害は、端末。
The conventional automatic system switching method is the Japanese Patent Publication No. 61-4129.
As described in the No. 5 publication, consideration was given to computer failures, and the system was automatically switched to minimize the downtime of online processing and improve the operating rate. However, no consideration was given to failures in communication control processing devices that would cause online processing to stop, similar to computer failures. The communication control processing unit is a device that controls data transmission between terminals, network systems, and computers, and failures in the communication control processing unit can occur at the terminal.

ネットワークシステムと計算機間のデータ伝送が不可と
なり、オンライン処理は停止せざるを得ない。
Data transmission between the network system and the computer becomes impossible, and online processing has no choice but to stop.

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

上記従来技術は通信制御処理装置の障害の点について配
慮がされておらず、通信制倒毛4袈置の障害時には手動
によって予備の通信制御処理装置に切替えることによっ
て回復するしかないのでオペレータの手動操作によって
回復時間が長いので通信制御処理装置の障害によってオ
ンライン処理が行なえない時間が長くかかり、データ処
理システムの稼動率が向上しない問題点があった。また
、通信制御処理装置直置によって、予備の通信制御処理
装置に切替え後に計算機障害が発生すると現用系の計算
機の通信制御処理装置の使用状態が待機等の計算機に連
絡されていないために通信制御処理装置の使用状態の回
復時間がかかる問題点があった。
The above conventional technology does not take into account failures in the communication control processing device, and in the event of a failure in the communication control system, the only way to recover is to manually switch to the standby communication control processing device. Since recovery time is long depending on the operation, it takes a long time when online processing cannot be performed due to failure of the communication control processing device, and there is a problem in that the operating rate of the data processing system is not improved. In addition, if a computer failure occurs after switching to the standby communication control processing unit by directly installing the communication control processing unit, the usage status of the communication control processing unit of the active computer will not be communicated to the standby computer, so communication control will be interrupted. There was a problem that it took a long time to recover the usage state of the processing device.

本発明の目的は通信制御処理装置の障害時に回復処理の
時間を短縮すると共に待機系計算機に現用系計算機の通
信制御処理装置の使用状態を連絡して、計算機切換え時
の回復時間を短縮することにある。
An object of the present invention is to shorten the recovery processing time when a communication control processing device fails, and also to notify the standby computer of the usage status of the communication control processing device of the active computer, thereby shortening the recovery time when switching computers. It is in.

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

上記目的は、通信制御処理装置の障害検知機能と通信制
御処理装置の障害を検知したとき、予備の通信制御処理
装置に自動的に切替える機能と予備の通信制御処理装置
に切替える場合には待機系の計算機に連絡して待機状態
が解除されて現用系となる場合の通信制御処理装置の使
用状態(使用又は予備および他の計算機との共用又は非
共用)の変更を行なう機能を備えることによって、達成
される。
The above objectives include a fault detection function in the communication control processing unit, a function to automatically switch to a standby communication control processing unit when a failure in the communication control processing unit is detected, and a function to automatically switch to the standby communication control processing unit when switching to the standby communication control processing unit. By providing a function to contact the computer and change the usage status of the communication control processing unit (in use or reserve, and shared with other computers or non-shared) when the standby state is canceled and the computer becomes active. achieved.

〔作用〕[Effect]

現用系の計算機は、オンライン処理のために通信制御処
理装置を使用して通信制御処理装置からの障害報告又は
一定時間無応答によって通信制御処理装置の障害を検知
する。障害を検知した計算機は他の計算機に障害を連絡
後に予備の通信制御処理装置に切替える。障害連絡を受
けた待機系の計算機は待機状態が解除されて現用系とな
る場合の通信制御処理装置の使用状態の変更を行なう。
The active computer uses the communication control processing device for online processing, and detects a failure in the communication control processing device based on a failure report from the communication control processing device or no response for a certain period of time. A computer that detects a failure notifies other computers of the failure and then switches to a backup communication control processing device. The standby computer that receives the fault notification changes the usage status of the communication control processing device when the standby state is canceled and becomes the active system.

それによって通信制御処理装置の障害が発生しても予備
の通信制御処理装置に自動的に切り換えられるので故障
時間が短縮される。また通信制御処理装置の使用状態が
計算機切換え以前に連絡されているので計算機切換えの
時の通信制御処理装置の使用状態の回復が不要となるの
で、回復時間が短縮される。
As a result, even if a communication control processing device fails, the communication control processing device can be automatically switched to a spare communication control processing device, thereby shortening the failure time. Furthermore, since the usage status of the communication control processing device is communicated before the computer is switched, there is no need to recover the usage status of the communication control processing unit when the computer is switched, so the recovery time is shortened.

〔実施例〕〔Example〕

以下、本発明の一実施例を第1図〜第3図によって説明
する。第1図は本発明圧よるデータ処理システムの構成
例である。オンライン処理を行なう現用系計算、411
.12と障害時に切換える待機系計算機15の計算機3
台で構成されて3つ、現用系計算機にはオンライン処理
を行なう現用オンラインシステム113.123が存在
し、待機系計算機には現用オンラインシステムに対する
待機オンラインシステム133,154が存在する。
An embodiment of the present invention will be described below with reference to FIGS. 1 to 3. FIG. 1 shows an example of the configuration of a data processing system according to the present invention. Active system calculation that performs online processing, 411
.. 12 and computer 3 of the standby computer 15 to be switched in the event of a failure.
The active computer has active online systems 113 and 123 that perform online processing, and the standby computer has standby online systems 133 and 154 for the active online system.

計算機には、オペレーティングシステム111゜121
.151および現用系障害時に待機系の計算機に切換え
ることおよび通信制御処理装置、切替え制御のための自
動システム切換え制御プログラム112,122,13
2が存在する。通信制御処理装置1:141は現用系計
算機11と接続されており、現用オンラインシステム1
:113は通信制御処理装置1:141を介して端末、
ネットワークシステム:151,152とデータの送受
信が可能である。通信制御処理装置2:142は現用系
計算機11および12に接続されており、現用オンライ
ンシステム1および2は通信制御処理装置142を介し
て、端末、ネットワークシステム:153,154とデ
ータの送受信が可能である。通信制御処理装置(予備)
143は通信制御処理装置1,2の交代用である。計算
機の間はチャネル間結合装置171,172.173に
よって接続されており、自動システム切換え制御プログ
ラム:112,122,132間でデータの送受信が可
能である。I10切替装置16は自動システム切換え制
御プログラムからの指示に基づいてオンライン用の入出
力装置の接続を切替える機能を有するものであり、計算
機11. 12.15と通信制御処理装置141,14
2.14!lおよび端末、ネットワークシステム151
〜154の接続を変更することができる。例えば計算機
12の#沓時に通信制御処理装置2を計算機15に切替
えることができる。
The computer has an operating system of 111°121.
.. 151 and automatic system switching control programs 112, 122, 13 for switching to a standby computer when a failure occurs in the active system, communication control processing device, and switching control.
2 exists. The communication control processing device 1:141 is connected to the active system computer 11, and is connected to the active online system 1.
:113 is a terminal via communication control processing device 1:141,
Network system: It is possible to send and receive data to and from 151 and 152. Communication control processing device 2: 142 is connected to active computers 11 and 12, and active online systems 1 and 2 can send and receive data to terminals and network systems: 153 and 154 via communication control processing device 142. It is. Communication control processing unit (spare)
Reference numeral 143 is for switching between the communication control processing devices 1 and 2. The computers are connected by inter-channel coupling devices 171, 172, and 173, and data can be sent and received between automatic system switching control programs 112, 122, and 132. The I10 switching device 16 has a function of switching the connection of online input/output devices based on instructions from the automatic system switching control program, and has the function of switching the connection of online input/output devices. 12.15 and communication control processing devices 141, 14
2.14! l and terminal, network system 151
~154 connections can be changed. For example, when the computer 12 is disabled, the communication control processing device 2 can be switched to the computer 15.

第2図は、自動システム切替え制御プログラムのテーブ
ルの構成例である。自動システム切換え制御プログラム
のテーブルはすべて自動システム切換え制御プログラム
管理テーブル21によって先頭アドレス、二ントリ数、
エントリサイズが管理されている。計算機管理テーブル
22には計算+A番号およびデータを通信するためのチ
ャネル間結合装置の識別子、計算機に存在するオンライ
ンシステム情報として、待機/現用Sよびオンラインシ
ステム識別子を持つ。通信制御処理装置管理テーブル2
3には通信制御処理装置識別子2通信制御処理装置の正
常又は異常、日計算機で使用か否か、予備か否か、使用
中地計算機番号情報を持つ。池の計算機の情報はチャネ
ル間結合装置によって自動システム切換え制御プログラ
ムがデータビ送受信してセットする。これによって、待
機系計算機にも待機状態が解除され、現用系となった場
合の通信制御処理装置使用状態が分かる。
FIG. 2 is an example of the table configuration of the automatic system switching control program. All automatic system switching control program tables are configured by the automatic system switching control program management table 21, including the start address, number of two entries,
Entry size is controlled. The computer management table 22 has a calculation+A number, an identifier of an inter-channel coupling device for communicating data, and a standby/active S and online system identifier as online system information existing in the computer. Communication control processing device management table 2
3 has communication control processing device identifier 2 information on whether the communication control processing device is normal or abnormal, whether it is used as a daily computer, whether it is a spare or not, and the number of the computer in use. The information on the computer in the queue is set by the automatic system switching control program through data transmission and reception by the inter-channel coupling device. As a result, the standby computer is also released from the standby state and the usage status of the communication control processing device when it becomes the active computer can be known.

第5図は本発明による通信制御処理装置障害時の自動切
替え方式流れ図である。オンライン処理を実行中に、オ
ペレーティングシステムは通信制御処理装置からの無応
答又は障害報告によって障害を検知51して自動システ
ム切替え制御プログラムおよびオンラインシステムに連
絡スるオペレーティングシステムおよびオンラインシス
テムは障害2発生した通信制御処理装置、使用を中Ir
r32する。自動システム切換え制御プログラムは通信
制御処理装置管理テーブルによって予備の通信制御処理
装置の有=をチェック=331する。予備の通信制御処
理装置があると、予備を使用しても可能か否かをチャネ
ル間結合装置によって間合せ34て応答を待つ。全ての
計算機から予備の通信制御処理装置の切替え可能の応答
があるか否かtチェック:552して、応答があれば、
I10切替え装置に切替え指示55を行なって日計算機
で障害を検知した通信制御処理装置を日計算機から切離
して、予備の通信制御処理装置を接続する。
FIG. 5 is a flowchart of an automatic switching method when a communication control processing device fails according to the present invention. While executing online processing, the operating system detects a failure due to no response or failure report from the communication control processing unit 51 and contacts the automatic system switching control program and the online system.The operating system and online system have a failure 2. Communication control processing unit, used during
r32. The automatic system switching control program checks 331 whether there is a spare communication control processing device based on the communication control processing device management table. If there is a spare communication control processing unit, the inter-channel coupling device determines whether it is possible to use the spare or not and waits for a response. Check whether there is a response from all computers indicating that the backup communication control processing unit can be switched: 552; if there is a response,
A switching instruction 55 is issued to the I10 switching device to disconnect the communication control processing device in which the fault has been detected in the computer and connect it to the backup communication control processing device.

切替えの成功をチェック533して、成功時にはチャネ
ル間結合装Ttを使用して他の計算機に切替え成功連絡
を行ない561.日計算機および細針算機の通信制御処
理装置管理テーブルを更新する。
The success of the switching is checked 533, and when it is successful, the inter-channel coupling device Tt is used to notify the other computers of the success of the switching 561. Update the communication control processing device management table of the day calculator and fine needle calculator.

計算機オペレータに自動切替え成功を連絡371して、
通信制御処理装置の使用を再開始38する。
Notify the computer operator of the success of automatic switching (371),
The use of the communication control processing device is restarted 38.

切替え失敗の場合は、他の計算機に切替え失敗連絡56
2′f?::行なうと共に、計算機オペレータに自動切
替え不可連絡572を行なう。
If the switching fails, notify the other computer of the switching failure 56
2'f? :: At the same time, the computer operator is notified 572 that automatic switching is not possible.

本実施例によれば、2台の通信制御処理装置の予備を一
台の通信制御処理装置で構成できるので障害対震のため
の予備台数を削減でき、コスト低減の効果がある。
According to this embodiment, one communication control processing device can serve as a backup for two communication control processing devices, so the number of backup devices for failure countermeasures can be reduced, resulting in cost reduction.

〔発明の効果〕 本発明によれば、通信制御処理装置の障害が発生しても
予備の通信制御処理装置に自動的に切替えるので、回復
処理時間のうち手動の部分が短縮されるので、故障時間
が短縮される効果がある。また、計算機障害が発生して
も待機系計算機で現用系計算機の状態が直ちに分るので
回復時間が短縮される。
[Effects of the Invention] According to the present invention, even if a failure occurs in a communication control processing device, it is automatically switched to a spare communication control processing device, so the manual portion of the recovery processing time is shortened. This has the effect of shortening time. Furthermore, even if a computer failure occurs, the standby computer can immediately determine the status of the active computer, reducing recovery time.

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

第1図は本発明の一実施例のデータ処理システムの構成
図、第2図は本発明の一実施例の自動システム切換え制
御プログラムのテーブルの構成図、第3図は本発明によ
る通信制御処理装置障害時の自動切換え方式流れ図であ
る。 11.12.13・・・計算機システム、141゜14
2.143・・・通信制御処理装置、151゜152.
153,154・・・端末、ネットワークシステ・ム、
16・・・I10切替装置、171,172゜175−
・・チャネル間結合装置、111,121゜151・・
・オペレーティングシステム、112゜122.132
・・・自動システム切替え制御プログラム、113,1
23・・・現用オンラインシステム、133.134・
・・待機オンラインシステム、22・・・計算機管理テ
ーブル、23・・・通信制御処理装置管理テーブル、3
1・・・障害検知、52・・・使用中断、331.55
2. 353−・・切替え可否判断、54・・・他の計
算機間合せ、35・・・切替え指示、361゜562・
・・他の計算機に連絡、571.、.572・−オ<v
 11i1”・”8°!m411#・    4代理人
弁理士 小 川 勝 外1′ 躬 1 口 ¥ 2閃
FIG. 1 is a block diagram of a data processing system according to an embodiment of the present invention, FIG. 2 is a block diagram of a table of an automatic system switching control program according to an embodiment of the present invention, and FIG. 3 is a communication control processing according to the present invention. It is a flowchart of an automatic switching method when a device failure occurs. 11.12.13...Computer system, 141°14
2.143...Communication control processing device, 151°152.
153,154...terminal, network system,
16...I10 switching device, 171,172°175-
...Channel coupling device, 111, 121゜151...
・Operating system, 112°122.132
...Automatic system switching control program, 113,1
23... Current online system, 133.134.
...Standby online system, 22...Computer management table, 23...Communication control processing device management table, 3
1... Failure detection, 52... Suspension of use, 331.55
2. 353--Determining whether or not to switch, 54--Aligning with other computers, 35--Switching instruction, 361゜562-
...Contact other computers, 571. ,.. 572・-o<v
11i1”・”8°! m411#・4 agent Masaru Ogawa Soto 1' Tsumugi 1 mouth ¥ 2 flashes

Claims (1)

【特許請求の範囲】 1、オンライン処理を行なう現用系の計算機と待機系の
計算機および複数の通信制御処理装置を備え、現用系の
計算機がダウンしたとき、待機系の計算機を現用系に切
換えてオンライン処理を続行するようになっているデー
タ処理システムにおいて、現用系の計算機に通信制御処
理装置の障害検知機能と、通信制御処理装置の障害を検
知したとき予備の通信制御処理装置に自動的に切換える
機能と 予備の通信制御処理装置に切換える場合には待機系の計
算機に連絡して待機状態か解除され、現用系となつた場
合の通信制御処理装置使用状態変更を行なう機能とを有
することを特徴とする自動システム切換え方式。
[Claims] 1. An active system computer that performs online processing, a standby system computer, and a plurality of communication control processing devices are provided, and when the active system computer goes down, the standby system computer is switched to the active system. In a data processing system that continues online processing, the active computer has a failure detection function for the communication control processing unit, and when a failure in the communication control processing unit is detected, the backup communication control processing unit is automatically activated. When switching to a backup communication control processing unit, the standby computer is contacted and the standby state is released, and when the communication control processing unit becomes active, the communication control processing unit usage status is changed. Features an automatic system switching method.
JP62099727A 1987-04-24 1987-04-24 Automatic system switching system Pending JPS63266549A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62099727A JPS63266549A (en) 1987-04-24 1987-04-24 Automatic system switching system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62099727A JPS63266549A (en) 1987-04-24 1987-04-24 Automatic system switching system

Publications (1)

Publication Number Publication Date
JPS63266549A true JPS63266549A (en) 1988-11-02

Family

ID=14255101

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62099727A Pending JPS63266549A (en) 1987-04-24 1987-04-24 Automatic system switching system

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JP (1) JPS63266549A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6190196B1 (en) 1996-09-27 2001-02-20 The Whitaker Corporation Cable connector assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6190196B1 (en) 1996-09-27 2001-02-20 The Whitaker Corporation Cable connector assembly

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