JPH06326753A - System data restoration method for communication network system - Google Patents

System data restoration method for communication network system

Info

Publication number
JPH06326753A
JPH06326753A JP5111979A JP11197993A JPH06326753A JP H06326753 A JPH06326753 A JP H06326753A JP 5111979 A JP5111979 A JP 5111979A JP 11197993 A JP11197993 A JP 11197993A JP H06326753 A JPH06326753 A JP H06326753A
Authority
JP
Japan
Prior art keywords
communication control
external storage
storage device
communication
system data
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.)
Withdrawn
Application number
JP5111979A
Other languages
Japanese (ja)
Inventor
Takatsugu Kurokawa
隆次 黒河
Tetsuya Mori
哲也 森
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP5111979A priority Critical patent/JPH06326753A/en
Publication of JPH06326753A publication Critical patent/JPH06326753A/en
Withdrawn legal-status Critical Current

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  • Multi Processors (AREA)
  • Computer And Data Communications (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)

Abstract

PURPOSE:To prevent the system from entering a down state owing to abnormality of an external storage device by transferring system data from a monitor device after performing actuation by reading characteristic information required for the actuation out of a nonvolatile memory. CONSTITUTION:Respective communication controllers 100-1 to 100-n load the characteristic information required for the actuation in the nonvolatile memory 800 from he external storage device 700 and stores it in advance. Then if the device 700 becomes abnormal at the time of power recovery after a break of power supply, the devices 100-1 to 100-n read the characteristic information required for the actuation out of the memory 800 and performs the actuation, and then informs the monitor device 300 of that. The device 300 transfers the necessary system data to the devices 100-1 to 100-n so as to make a communication among the communication controllers. Consequently, the system data are automatically restored to prevent the system down and the reliability of the communication network system can be improved.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、外部記憶装置(フロッ
ピー、ハードディスク等)からシステムデータをロード
し各種制御を行う複数の通信制御装置とこれら複数の通
信制御装置の監視を行う監視装置を有する通信ネットワ
ークシステムにおいて、外部記憶装置の異常時のシステ
ムデータ復旧方式に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a plurality of communication control devices for loading system data from an external storage device (floppy, hard disk, etc.) and performing various controls, and a monitoring device for monitoring these communication control devices. The present invention relates to a system data recovery method when an external storage device has an abnormality in a communication network system.

【0002】[0002]

【従来の技術】外部記憶装置に異常が発生しかつ停電等
が発生した場合、従来の技術では特に復旧方式はなく、
システムダウンに陥るケースが多かった。
2. Description of the Related Art When an abnormality occurs in an external storage device and a power failure occurs, there is no recovery method in the conventional technology.
There were many cases where the system went down.

【0003】[0003]

【発明が解決しようとする課題】上述したように従来
は、外部記憶装置に異常が発生した場合、システムダウ
ンに陥るケースが多く、通信ネットワークシステムの信
頼性が低下するという問題点があった。
As described above, conventionally, when an abnormality occurs in the external storage device, the system often goes down, and there is a problem that the reliability of the communication network system deteriorates.

【0004】したがって本発明は、外部記憶装置の異常
によるシステムダウンを防止し、通信ネットワークシス
テムの信頼性を向上させる通信ネットワークシステムに
おけるシステムデータ復旧方式を提供することを目的と
する。
Therefore, it is an object of the present invention to provide a system data recovery method in a communication network system which prevents a system down due to an abnormality in an external storage device and improves the reliability of the communication network system.

【0005】[0005]

【課題を解決するための手段】上記問題点は図1に示す
装置の構成によって解決される。即ち、図1において、
互いに制御回線及びデータ回線により接続される複数の
通信制御装置(100-1〜100-n)と、該制御回線及びデータ
回線により接続され該複数の通信制御装置の動作の監視
を行う監視装置300 とを有する通信ネットワークシステ
ムであって、該複数の通信制御装置に設置又は除去可能
な外部記憶装置700 により該複数の通信制御装置間で通
信を行うために必要なシステムデータが該複数の通信制
御装置及び該監視装置にロードされる通信ネットワーク
システムにおいて、前記システムデータのうち自通信制
御装置の起動に必要な固有の情報を格納するための不揮
発性メモリ800 を前記複数の通信制御装置に設け、予め
前記外部記憶装置から該起動に必要な固有の情報をロー
ドして該不揮発性メモリに格納しておき、電源が断した
後復電した時でかつ前記外部記憶装置の異常発生時に、
該異常発生した外部記憶装置を設置した通信制御装置で
は、該不揮発性メモリから該起動に必要な固有の情報を
読み出して起動させた後、該外部記憶装置の異常発生を
示す信号を前記制御回線に送出し、前記監視装置で、該
外部記憶装置の異常発生を示す信号を受信し、前記複数
の通信制御装置間で通信を行うために必要なシステムデ
ータを該外部記憶装置の異常発生を示す信号を送出した
通信制御装置に対して転送するように構成する。
The above problems can be solved by the structure of the apparatus shown in FIG. That is, in FIG.
A plurality of communication control devices (100-1 to 100-n) that are mutually connected by a control line and a data line, and a monitoring device 300 that monitors the operation of the plurality of communication control devices that are connected by the control line and the data line. And a communication network system having a plurality of communication control devices, wherein system data necessary for communication between the plurality of communication control devices is provided by an external storage device 700 that can be installed in or removed from the plurality of communication control devices. In the communication network system loaded into the device and the monitoring device, a nonvolatile memory 800 for storing unique information necessary for starting the own communication control device among the system data is provided in the plurality of communication control devices, Unique information necessary for the startup is loaded from the external storage device in advance and stored in the nonvolatile memory, and when the power is restored after the power is turned off At the time of occurrence of abnormality in the storage device,
In the communication control device in which the external storage device in which the abnormality has occurred is installed, the unique information necessary for the activation is read from the non-volatile memory and activated, and then a signal indicating an abnormality in the external storage device is sent to the control line. To the external storage device, the monitoring device receives a signal indicating the occurrence of an abnormality in the external storage device, and outputs the system data necessary for communication between the plurality of communication control devices to indicate the occurrence of an abnormality in the external storage device. It is configured to transfer the signal to the communication control device that has sent the signal.

【0006】[0006]

【作用】図1において、電源が断した後復電した時も不
揮発性メモリ800 の内容は保存されるため、前記外部記
憶装置の異常発生時に、該異常発生した外部記憶装置を
設置した通信制御装置では、該不揮発性メモリから起動
に必要な固有の情報を読み出して起動させることができ
る。そして、該外部記憶装置の異常発生を示す信号を前
記制御回線に送出する。
In FIG. 1, since the contents of the non-volatile memory 800 are preserved even when the power is restored after the power is cut off, when an abnormality occurs in the external storage device, communication control in which the abnormality-occurring external storage device is installed is performed. The device can be started by reading the unique information necessary for starting from the non-volatile memory. Then, a signal indicating the occurrence of an abnormality in the external storage device is sent to the control line.

【0007】前記監視装置300のメモリ(図示しない)
等には複数の通信制御装置間で通信を行うために必要な
システムデータが格納されているため、前記監視装置30
0で該外部記憶装置の異常発生を示す信号を受信した時
には、前記複数の通信制御装置間で通信を行うために必
要なシステムデータを読み出して該外部記憶装置の異常
発生を示す信号を送出した通信制御装置に対して転送す
る。
Memory of the monitoring device 300 (not shown)
Since system data necessary for communication between a plurality of communication control devices is stored in
When a signal indicating the occurrence of an abnormality in the external storage device is received at 0, the system data necessary for communication between the plurality of communication control devices is read and a signal indicating the occurrence of an abnormality in the external storage device is transmitted. Transfer to the communication control device.

【0008】この結果、電源が断した後復電した時でか
つ外部記憶装置(フロッピー、ディスク等)の異常発生
時に、自動的にシステムデータの復旧を行うことによ
り、システムダウンを防止し、通信ネットワークシステ
ムの信頼性を向上させることが可能となる。
As a result, the system data is automatically restored when the power is restored after the power is turned off and when an abnormality occurs in the external storage device (floppy, disk, etc.), thereby preventing a system down and communicating. It is possible to improve the reliability of the network system.

【0009】[0009]

【実施例】図2は本発明の実施例の通信制御装置の構成
を示すブロック図である。図3は一例の通信ネットワー
クシステムの構成図である。
FIG. 2 is a block diagram showing the configuration of a communication control device according to an embodiment of the present invention. FIG. 3 is a configuration diagram of an example communication network system.

【0010】図4は一例のシステムデータの構成図であ
る。図3において、例えばある企業の各工場(A〜D)
等に設置される通信制御装置1は、互いにデータ回線及
び制御回線で結ばれていて、各通信制御装置1にはそれ
ぞれ端末2-1 〜2-n が接続され、データ回線及び制御回
線を介してこれら端末の間で制御信号やデータの送受を
行うものとする。又、監視装置3でネットワーク全体の
監視制御を行う。
FIG. 4 is a block diagram of an example of system data. In FIG. 3, for example, each factory (A to D) of a certain company
The communication control devices 1 installed in the etc. are connected to each other by a data line and a control line, and each communication control device 1 is connected to terminals 2-1 to 2-n, respectively, and is connected via the data line and the control line. Control signals and data are transmitted and received between these terminals. Further, the monitoring device 3 controls the monitoring of the entire network.

【0011】各通信制御装置1の構成を図2に示すが、
同図において、電源の投入によりメモリROM5に格納
されている制御プログラムが起動され、該通信制御装置
1に設置又は除去可能な外部記憶装置(フロッピー、デ
ィスク等)7から図4で示されるシステムデータをメモ
リRAM6上にロードする。
The configuration of each communication control device 1 is shown in FIG.
In the figure, the control program stored in the memory ROM 5 is started by turning on the power, and the external storage device (floppy, disk, etc.) 7 that can be installed or removed in the communication control device 1 to the system data shown in FIG. Is loaded on the memory RAM 6.

【0012】システムデータは図4(a) 〜(d) に示すよ
うに、ネットワークの構成状態や制御回線の接続情報が
格納されているネットワーク情報、装置間データ回線の
接続情報が格納されている接続情報、自装置と接続され
る(自装置以外の)通信制御装置に関する接続情報が格
納される関連装置情報で構成され、各通信制御装置毎に
異なる固有のデータである。これら各通信制御装置に関
するシステムデータは、予め監視装置3にも格納され
る。そして、データ内のバックアップ(Backup)要否情
報により、必要な情報のみRAM6から不揮発性メモリ
8に格納し、バックアップに備える。
As shown in FIGS. 4 (a) to 4 (d), the system data stores network configuration information, network information in which control line connection information is stored, and inter-device data line connection information. This is unique data that is composed of connection information and related device information that stores connection information related to a communication control device (other than the own device) connected to the own device, and is different for each communication control device. System data relating to each of these communication control devices is also stored in advance in the monitoring device 3. Then, according to the backup necessity information in the data, only the necessary information is stored from the RAM 6 to the non-volatile memory 8 to prepare for the backup.

【0013】例えば、図4(b) でネットワーク情報01
がバックアップ要で、ネットワーク情報02がバックア
ップ否の時には、ネットワーク情報01だけが不揮発性
メモリ8に格納される。バックアップのための情報をす
べて不揮発性メモリ8に格納し終わった時点で、各通信
制御装置1はシステムデータにしたがって各種設定を行
い運用状態となる。
For example, in FIG. 4B, the network information 01
Is required for backup, and when the network information 02 is not backed up, only the network information 01 is stored in the non-volatile memory 8. When all the information for backup has been stored in the non-volatile memory 8, each communication control device 1 makes various settings according to the system data and becomes in the operating state.

【0014】運用中に停電等が発生し、復電した時に外
部記憶装置7に異常が発生し、システムデータがロード
できなくなった場合、前述した不揮発性メモリ8内に格
納したバックアップデータをRAM6上にロードし、通
信制御装置1の立ち上げを行う。立ち上げ処理が終了し
た時点で、警報転送部9からネットワークの制御回線に
対して同報(一斉放送)により異常を示す警報フレーム
を送出し、監視装置3及び自装置以外の通信制御装置に
立ち上げ時異常発生の警報通知を行う。
When a power failure occurs during operation and an abnormality occurs in the external storage device 7 when the power is restored and the system data cannot be loaded, the backup data stored in the non-volatile memory 8 is stored on the RAM 6. Then, the communication control device 1 is started up. When the start-up process is completed, an alarm frame indicating an abnormality is sent from the alarm transfer unit 9 to the control line of the network by broadcast (broadcast), and the monitoring device 3 and communication control devices other than the own device are activated. Gives an alarm notification when an abnormality occurs at the time of raising.

【0015】ネットワーク内に図3に示すような監視装
置3が設置されている場合には、監視装置3で上記警報
を受信して、監視装置3から当該通信制御装置にシステ
ムデータの転送を行い、立ち上げ時異常の発生した通信
制御装置では、このシステムデータを受信してシステム
データを復旧させる。又、ネットワーク内に監視装置が
設置されていない場合は、警報受信部10で異常発生の警
報を受信した通信制御装置が図4(d) に示すような関連
装置情報をRAM6上でチェックし、当該異常の発生し
た通信制御装置に関する情報を保有している場合には、
当該通信制御装置に対してデータを転送することにより
システムデータを復旧させる。
When the monitoring device 3 as shown in FIG. 3 is installed in the network, the monitoring device 3 receives the alarm and transfers the system data from the monitoring device 3 to the communication control device. The communication control device in which the abnormality occurs at startup receives this system data and restores the system data. Further, when the monitoring device is not installed in the network, the communication control device which has received the alarm of the abnormality occurrence in the alarm receiving unit 10 checks the related device information as shown in FIG. If you have information on the communication control device where the abnormality occurred,
System data is restored by transferring data to the communication control device.

【0016】このようにして、電源が断した後復電した
時でかつ外部記憶装置(フロッピー、ディスク等)の異
常発生時に、自動的にシステムデータの復旧を行うこと
により、システムダウンを防止し、通信ネットワークシ
ステムの信頼性を向上させることが可能となる。
In this way, when the power is restored after the power is cut off, and when an abnormality occurs in the external storage device (floppy, disk, etc.), the system data is automatically restored to prevent the system from going down. It becomes possible to improve the reliability of the communication network system.

【0017】[0017]

【発明の効果】以上説明したように本発明によれば、電
源が断した後復電した時でかつ外部記憶装置(フロッピ
ー、ディスク等)の異常発生時に、自動的にシステムデ
ータの復旧を行うことにより、システムダウンを防止
し、通信ネットワークシステムの信頼性を向上させるこ
とが可能となる。
As described above, according to the present invention, the system data is automatically restored when the power is restored after the power is turned off and when an abnormality occurs in the external storage device (floppy, disk, etc.). This makes it possible to prevent system down and improve the reliability of the communication network system.

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

【図1】は本発明の原理図、FIG. 1 is a principle diagram of the present invention,

【図2】は本発明の実施例の通信制御装置の構成を示す
ブロック図、
FIG. 2 is a block diagram showing a configuration of a communication control device according to an embodiment of the present invention,

【図3】は一例の通信ネットワークシステムの構成図、FIG. 3 is a configuration diagram of an example communication network system,

【図4】は一例のシステムデータの構成図である。FIG. 4 is a configuration diagram of an example of system data.

【符号の説明】[Explanation of symbols]

100-1 〜100-n は通信制御装置、300 は監視装置、700
は外部記憶装置、800 は不揮発性メモリを示す。
100-1 to 100-n are communication control units, 300 are monitoring units, 700
Is an external storage device, and 800 is a non-volatile memory.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 互いに制御回線及びデータ回線により接
続される複数の通信制御装置(100-1〜100-n)と、該制御
回線及びデータ回線により接続され該複数の通信制御装
置の動作の監視を行う監視装置(300) とを有する通信ネ
ットワークシステムであって、該複数の通信制御装置に
設置又は除去可能な外部記憶装置(700)により該複数の
通信制御装置間で通信を行うために必要なシステムデー
タが該複数の通信制御装置及び該監視装置にロードされ
る通信ネットワークシステムにおいて、 前記システムデータのうち自通信制御装置の起動に必要
な固有の情報を格納するための不揮発性メモリ(800) を
前記複数の通信制御装置に設け、予め前記外部記憶装置
から該起動に必要な固有の情報をロードして該不揮発性
メモリに格納しておき、 電源が断した後復電した時でかつ前記外部記憶装置の異
常発生時に、該異常発生した外部記憶装置を設置した通
信制御装置では、該不揮発性メモリから該起動に必要な
固有の情報を読み出して起動させた後、該外部記憶装置
の異常発生を示す信号を前記制御回線に送出し、 前記監視装置で、該外部記憶装置の異常発生を示す信号
を受信し、前記複数の通信制御装置間で通信を行うため
に必要なシステムデータを該外部記憶装置の異常発生を
示す信号を送出した通信制御装置に対して転送するよう
にしたことを特徴とする通信ネットワークシステムにお
けるシステムデータ復旧方式。
1. A plurality of communication control devices (100-1 to 100-n) connected to each other by a control line and a data line, and monitoring of operations of the plurality of communication control devices connected by the control line and the data line. A communication network system having a monitoring device (300) for performing the above, which is necessary for communication between the plurality of communication control devices by an external storage device (700) that can be installed in or removed from the plurality of communication control devices. In a communication network system in which various system data are loaded into the plurality of communication control devices and the monitoring device, a non-volatile memory (800) for storing specific information necessary for starting the own communication control device among the system data (800 ) Is provided in the plurality of communication control devices, specific information necessary for the activation is loaded from the external storage device in advance and stored in the nonvolatile memory, and power is restored after the power is turned off. At the same time and when an abnormality occurs in the external storage device, in the communication control device in which the external storage device in which the abnormality has occurred is installed, after the unique information necessary for the activation is read from the non-volatile memory and activated, Required to send a signal indicating the occurrence of an abnormality in the external storage device to the control line, and to receive a signal indicating the occurrence of an abnormality in the external storage device at the monitoring device, and to perform communication between the plurality of communication control devices System data recovery method in a communication network system, wherein the system data is transferred to a communication control device that has sent a signal indicating the occurrence of an abnormality in the external storage device.
JP5111979A 1993-05-14 1993-05-14 System data restoration method for communication network system Withdrawn JPH06326753A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5111979A JPH06326753A (en) 1993-05-14 1993-05-14 System data restoration method for communication network system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5111979A JPH06326753A (en) 1993-05-14 1993-05-14 System data restoration method for communication network system

Publications (1)

Publication Number Publication Date
JPH06326753A true JPH06326753A (en) 1994-11-25

Family

ID=14574918

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5111979A Withdrawn JPH06326753A (en) 1993-05-14 1993-05-14 System data restoration method for communication network system

Country Status (1)

Country Link
JP (1) JPH06326753A (en)

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