JPH03180949A - Computer system - Google Patents
Computer systemInfo
- Publication number
- JPH03180949A JPH03180949A JP1319795A JP31979589A JPH03180949A JP H03180949 A JPH03180949 A JP H03180949A JP 1319795 A JP1319795 A JP 1319795A JP 31979589 A JP31979589 A JP 31979589A JP H03180949 A JPH03180949 A JP H03180949A
- Authority
- JP
- Japan
- Prior art keywords
- terminal control
- control device
- host computer
- line
- terminal
- 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
Links
- 238000004891 communication Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Hardware Redundancy (AREA)
- Computer And Data Communications (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はホストコンピュータに通信回線で接続された複
数の端末制御装置と下位端末装置との間の回線切り換え
に利用する。本発明は端末制御装置に障害が発生したと
きに予備として設けられた端末制御装置に自動的に下位
回線を切り換えることができる計算機システムに関する
。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention is utilized for line switching between a plurality of terminal control devices and lower-level terminal devices connected to a host computer via communication lines. The present invention relates to a computer system that can automatically switch a lower line to a terminal control device provided as a backup when a failure occurs in a terminal control device.
本発明はホストコンピュータに複数の端末制御装置が接
続され、この複数の端末制御装置それぞれに下位回線を
介して複数の端末装置が接続された計算機システムにお
いて、
予備端末制御装置および回線切り換え装置を設け、予備
端末制御装置に下位回線のそれぞれを切り換えられるよ
うにすることにより、
障害中の業務中断および復旧時における再立ち上げ作業
をなくすようにしたものである。The present invention provides a computer system in which a plurality of terminal control apparatuses are connected to a host computer, and a plurality of terminal apparatuses are connected to each of the plurality of terminal control apparatuses via lower lines, in which a backup terminal control apparatus and a line switching apparatus are provided. By allowing the standby terminal control equipment to switch between each of the lower-order lines, it was possible to eliminate business interruptions during failures and restart operations upon recovery.
従来、ホストコンビーータに接続された複数の端末制御
装置のうちの一つが障害により業務を中断した場合には
、その端末制御装置の復旧を待つか、あるいは他の端末
制御装置に接続されている下位端末装置上で業務を継続
していた。Conventionally, when one of the multiple terminal control devices connected to a host converter interrupts operations due to a failure, the system must either wait for that terminal control device to recover or connect to another terminal control device. Business continued on the lower-level terminal equipment.
上述した従来の端末制御装置の切り換えは、端末制御装
置に障害が発生した場合にその端末制御装置と下位端末
装置の電源を切断し、障害の発生した端末制御装置の復
旧作業を行い、復旧後にその端末制御装置と下位端末装
置との再立ち上げ操作を行う必要があるため、障害中の
端末制御装置が復旧するまでの間ホストコンピュータと
当該端末制御装置間にはメツセージ送受信が不能状態と
なり業務が中断する欠点があった。In the conventional terminal control device switching described above, when a failure occurs in a terminal control device, the power to that terminal control device and lower-level terminal devices is cut off, the failed terminal control device is restored, and after the failure occurs, the terminal control device is switched off. Since it is necessary to restart the terminal control device and the lower-level terminal device, messages cannot be sent or received between the host computer and the terminal control device until the faulty terminal control device is restored, and business operations cannot be performed. There was a drawback that it was interrupted.
本発明はこのような問題を解決するもので、端末制御装
置に障害が発生したときに、その端末制御装置に接続さ
れた下位回線を自動的に予備として設けた端末制御装置
に切り換えて業務を続行することができるシステムを提
供することを目的とする。The present invention is intended to solve such problems, and when a failure occurs in a terminal control device, the lower line connected to the terminal control device is automatically switched to a spare terminal control device to continue business operations. The aim is to provide a system that can continue.
本発明は、ひとつのホストコンビーータに複数の端末制
御装置が接続され、この複数の端末制御装置それぞれに
下位回線を介して複数の端末装置が接続された計算機シ
ステムにおいて、前記ホストコンピュータに接続された
予備端末制御装置を設けておき、この予備端末制御装置
と前記複数の下位回線のいずれかひとつにその下位回線
の端末制御装置に代えて切り換え接続する回線切り換え
装置とを備えたことを特徴とする。The present invention provides a computer system in which a plurality of terminal control devices are connected to one host converter, and a plurality of terminal devices are connected to each of the plurality of terminal control devices via a lower line. A standby terminal control device is provided, and the standby terminal control device and a line switching device are provided to switch and connect to any one of the plurality of lower-order lines in place of the terminal control device of the lower-order line. do.
前記ホストコンピュータに、前記複数の端末制御装置の
いずれかが障害を発生したときに前記回線切り換え装置
に対し切り換え指示を与える手段と、障害が回復したと
きに前記回線切り換え装置に対して切り戻し指示を与え
る手段とを含むことができる。means for giving the host computer a switching instruction to the line switching device when a failure occurs in any of the plurality of terminal control devices; and means for giving a switching instruction to the line switching device when the failure is recovered; and means for providing.
端末制御装置のいずれかに障害が発生したときに、その
端末制御装置に接続されている下位回線を自動的に予備
端末制御装置に切り換える。When a failure occurs in any terminal control device, a lower line connected to that terminal control device is automatically switched to a standby terminal control device.
これにより、障害による業務の中断をなくし、復旧時に
おけるシステムの再立ち上げ作業をなくすことができる
。This eliminates business interruptions due to failures and eliminates the need to restart the system at the time of recovery.
次に本発明実施例を図面に基づいて説明する。 Next, embodiments of the present invention will be described based on the drawings.
第１図は本発明実施例の構成を示すブロック図である。FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.
本発明実施例は、ひとつのホストコンピータ１に通信回
線１３〜１７を介して複数の端末制御装置２〜５が接続
され、この複数の端末制御装置２〜５それぞれに下位回
線８〜１１を介して複数の端末装置１２が接続され、さ
らに、ホストコンピュータ１に接続された予備端末制御
装置６を設けておき、この予備端末制御装置６と複数の
下位回線８〜１１のいずれかひとつにその下位回線８〜
１１の端末制御装置２〜５に代えて切り換え接続する回
線切り換え装置７とを備え、ホストコンビーータ１に、
複数の端末制御装置２〜５のいずれかが障害を発生した
ときに回線切り換え装置７に対し切り換え指示を与える
手段と、障害が回復したときに回線切り換え装置７に対
して切り戻し指示を与える手段とを含む。In the embodiment of the present invention, a plurality of terminal control devices 2 to 5 are connected to one host computer 1 via communication lines 13 to 17, and a plurality of terminal control devices 2 to 5 are connected to each other via lower lines 8 to 11. A plurality of terminal devices 12 are connected to the host computer 1, and a backup terminal control device 6 is further connected to the host computer 1. Line 8~
The host converter 1 is equipped with a line switching device 7 for switching connections in place of the 11 terminal control devices 2 to 5;
Means for giving a switching instruction to the line switching device 7 when a failure occurs in any of the plurality of terminal control devices 2 to 5, and means for giving a switching instruction to the line switching device 7 when the failure is recovered. including.
次に、このように構成された本発明実施例の動作につい
て説明する。正常時にはホストコンピュータ１と通信回
線１３〜１７に接続された複数の端末制御装置２〜５は
回線切り換え装置７を介して複数の端末装置１２に接続
された下位回線８〜１１に接続され、予備端末制御装置
６とは接続語の状態にある。Next, the operation of the embodiment of the present invention configured as described above will be explained. During normal operation, a plurality of terminal control devices 2 to 5 connected to the host computer 1 and communication lines 13 to 17 are connected to lower-order circuits 8 to 11 connected to a plurality of terminal devices 12 via a line switching device 7, and It is in a connective state with the terminal control device 6.
ここで第２図に示すように端末制御装置２が障害により
ホストコンピュータ１と通信処理の実行が不可能になる
と、ホストコンピュータ１は端末制御装置２の下位回線
８を予備端末制御装置側６に切り換え接続するように回
線切り換え装置７を制御する。As shown in FIG. 2, if the terminal control device 2 becomes unable to perform communication processing with the host computer 1 due to a failure, the host computer 1 transfers the lower line 8 of the terminal control device 2 to the standby terminal control device side 6. The line switching device 7 is controlled to switch and connect.
これによりホストコンピュータ１は予備端末制御装置６
を端末制御装置２として処理し、予備端末制御装置６に
接続された下位端末装置１２も端末制御装置２の下位端
末装置として処理される。As a result, the host computer 1
is processed as the terminal control device 2, and the lower-order terminal device 12 connected to the standby terminal control device 6 is also processed as a lower-order terminal device of the terminal control device 2.
以上説明したように本発明によれば、予備端末制御装置
および回線切り換え装置を備え、下位回線に接続された
任意の端末装置を予備端末制御装置に自動的に切り換え
られるようにすることにより、障害中の業務の中断をな
くし、復旧時における端末制御装置と端末装置の再立ち
上げ作業をなくすことができる効果がある。As explained above, according to the present invention, a backup terminal control device and a line switching device are provided, and any terminal device connected to a lower line can be automatically switched to the backup terminal control device. This has the effect of eliminating interruptions in internal business operations and eliminating the need to restart the terminal control device and terminal device at the time of recovery.
第１図は本発明実施例の構成を示すブロック図。
第２図は本発明実施例の予備端末制御装置に切り換えた
ときの構成を示すブロック図。
１・・・ホストコンピュータ、２〜５・・・端末制御装
置、６・・・予備端末制御装置、７・・・回線切り換え
装置、８〜１１・・・下位回線、１２・・・端末装置、
１３〜１７・・・通信回線。FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. FIG. 2 is a block diagram showing the configuration when switching to the standby terminal control device according to the embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Host computer, 2-5... Terminal control device, 6... Reserve terminal control device, 7... Line switching device, 8-11... Lower line, 12... Terminal device,
13-17... Communication line.
Claims (1)
が接続され、この複数の端末制御装置それぞれに下位回
線を介して複数の端末装置が接続された計算機システム
において、 前記ホストコンピュータに接続された予備端末制御装置
を設けておき、 この予備端末制御装置と前記複数の下位回線のいずれか
ひとつにその下位回線の端末制御装置に代えて切り換え
接続する回線切り換え装置とを備えたことを特徴とする
計算機システム。 ２、前記ホストコンピュータに、前記複数の端末制御装
置のいずれかが障害を発生したときに前記回線切り換え
装置に対し切り換え指示を与える手段を含む請求項１記
載の計算機システム。 ３、障害が回復したときに前記回線切り換え装置に対し
て切り戻し指示を与える手段を含む請求項２記載の計算
機システム。[Scope of Claims] 1. In a computer system in which a plurality of terminal control devices are connected to one host computer, and a plurality of terminal devices are connected to each of the plurality of terminal control devices via a lower line, the host computer A standby terminal control device connected to the standby terminal control device is provided, and a line switching device is provided to switch and connect the standby terminal control device and any one of the plurality of lower-order lines in place of the terminal control device of the lower-order line. A computer system featuring: 2. The computer system according to claim 1, wherein the host computer includes means for giving a switching instruction to the line switching device when a failure occurs in any of the plurality of terminal control devices. 3. The computer system according to claim 2, further comprising means for giving a switchback instruction to the line switching device when the fault has been recovered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1319795A JPH03180949A (en) | 1989-12-08 | 1989-12-08 | Computer system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1319795A JPH03180949A (en) | 1989-12-08 | 1989-12-08 | Computer system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03180949A true JPH03180949A (en) | 1991-08-06 |
Family
ID=18114271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1319795A Pending JPH03180949A (en) | 1989-12-08 | 1989-12-08 | Computer system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03180949A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5147634B2 (en) * | 1972-09-20 | 1976-12-16 | ||
| JPS60217445A (en) * | 1984-04-13 | 1985-10-31 | Hitachi Ltd | Communication controller switching system |
-
1989
- 1989-12-08 JP JP1319795A patent/JPH03180949A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5147634B2 (en) * | 1972-09-20 | 1976-12-16 | ||
| JPS60217445A (en) * | 1984-04-13 | 1985-10-31 | Hitachi Ltd | Communication controller switching system |
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