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JPS5688519A - System switching device - Google Patents

System switching device

Info

Publication number
JPS5688519A
JPS5688519A JP16636179A JP16636179A JPS5688519A JP S5688519 A JPS5688519 A JP S5688519A JP 16636179 A JP16636179 A JP 16636179A JP 16636179 A JP16636179 A JP 16636179A JP S5688519 A JPS5688519 A JP S5688519A
Authority
JP
Japan
Prior art keywords
computer
device part
peripheral devices
abnormal
systems
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
JP16636179A
Other languages
Japanese (ja)
Inventor
Takeo Iyo
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP16636179A priority Critical patent/JPS5688519A/en
Publication of JPS5688519A publication Critical patent/JPS5688519A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To make it possible to connect peripheral devices, connected to an abnormal system in a composite computer system, to a normal system, by providing a means of detecting the fault of the computer of the other system and an interrupting means of stopping the operation of the computer of the abnormal system.
CONSTITUTION: Arithmetic controllers 1A and 1B of the 1st and 2nd systems transmit monitor information to the other systems periodically via computer link device parts 2A and 2B respectively and then judge whether the other systems are normal or abnormal according to the existence of the responses. When not response is made to the monitor signal sent by device part 1A, the 2nd system is judged to be abnormal and a signal for stopping the electronic computer of the 2nd system is outputted from process output device part 5A. This stop signal is inputted to interrupting input device part 6B of the 2nd system and while the computer of the 2nd system is stopped by device part 1B, peripheral device switching unit 3 operates automatically to disconnect all peripheral devices 4XW4Z connected to the 2nd system. At this time, when a request to connect the peripheral devices is sent from device part 1A, the peripheral devices are connected to the 1st system side via device 3.
COPYRIGHT: (C)1981,JPO&Japio
JP16636179A 1979-12-21 1979-12-21 System switching device Pending JPS5688519A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16636179A JPS5688519A (en) 1979-12-21 1979-12-21 System switching device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16636179A JPS5688519A (en) 1979-12-21 1979-12-21 System switching device

Publications (1)

Publication Number Publication Date
JPS5688519A true JPS5688519A (en) 1981-07-18

Family

ID=15829958

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16636179A Pending JPS5688519A (en) 1979-12-21 1979-12-21 System switching device

Country Status (1)

Country Link
JP (1) JPS5688519A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6079438A (en) * 1983-10-07 1985-05-07 Nec Corp System switching control system of information processing system
JPS60134942A (en) * 1983-12-23 1985-07-18 Fuji Electric Co Ltd Backup system for abnormal state
JPH0287234A (en) * 1988-09-22 1990-03-28 Nec Corp Information processing system
JPH09282191A (en) * 1996-04-12 1997-10-31 Nec Corp Fault processing system
JP2006327101A (en) * 2005-05-27 2006-12-07 Toyota Motor Corp Deaeration core and shaping mold

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6079438A (en) * 1983-10-07 1985-05-07 Nec Corp System switching control system of information processing system
JPS60134942A (en) * 1983-12-23 1985-07-18 Fuji Electric Co Ltd Backup system for abnormal state
JPH0287234A (en) * 1988-09-22 1990-03-28 Nec Corp Information processing system
JPH09282191A (en) * 1996-04-12 1997-10-31 Nec Corp Fault processing system
JP2006327101A (en) * 2005-05-27 2006-12-07 Toyota Motor Corp Deaeration core and shaping mold

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