JPS5599658A - Automatic switching system for double system of hierarchy duplex system - Google Patents

Automatic switching system for double system of hierarchy duplex system

Info

Publication number
JPS5599658A
JPS5599658A JP686679A JP686679A JPS5599658A JP S5599658 A JPS5599658 A JP S5599658A JP 686679 A JP686679 A JP 686679A JP 686679 A JP686679 A JP 686679A JP S5599658 A JPS5599658 A JP S5599658A
Authority
JP
Japan
Prior art keywords
rank
computer
panel
duplex
hierarchy
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.)
Granted
Application number
JP686679A
Other languages
Japanese (ja)
Other versions
JPS592944B2 (en
Inventor
Keiji Sakurai
Motoharu Hirukawa
Naotaka Otsuki
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 JP54006866A priority Critical patent/JPS592944B2/en
Publication of JPS5599658A publication Critical patent/JPS5599658A/en
Publication of JPS592944B2 publication Critical patent/JPS592944B2/en
Expired legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To secure the automatic switching for the lower-rank duplex system even at the breakdown time of the higher-rank computer, by providing the monitor panel consisting of the alarm module.
CONSTITUTION: Monitor panel 14 consisting of the alarm module is provided between higher-rank computer 11 of the hierarchy system and lower-rank computers 12 and 13 which are duplicated in the from of the duplex system. Now if computers 12 and 13 supply mutually the status of the breakdown of the remote side computer through panel 14, the computer functioning as the secondary system computer at present is switched to the main system. At the same time, panel 14 displays the switching. When the computer is functioning as the main system and the information transmission is impossible through the higher-rank computer, the higher-rank status is supplied through panel 14. And if this status is normal, the fault of the transmission line is decided to give switching to the lower-rank system. In such way, the lower-rank duplex system can be switched.
COPYRIGHT: (C)1980,JPO&Japio
JP54006866A 1979-01-24 1979-01-24 Dual system automatic switching method of hirer-ki duplex system Expired JPS592944B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54006866A JPS592944B2 (en) 1979-01-24 1979-01-24 Dual system automatic switching method of hirer-ki duplex system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54006866A JPS592944B2 (en) 1979-01-24 1979-01-24 Dual system automatic switching method of hirer-ki duplex system

Publications (2)

Publication Number Publication Date
JPS5599658A true JPS5599658A (en) 1980-07-29
JPS592944B2 JPS592944B2 (en) 1984-01-21

Family

ID=11650153

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54006866A Expired JPS592944B2 (en) 1979-01-24 1979-01-24 Dual system automatic switching method of hirer-ki duplex system

Country Status (1)

Country Link
JP (1) JPS592944B2 (en)

Also Published As

Publication number Publication date
JPS592944B2 (en) 1984-01-21

Similar Documents

Publication Publication Date Title
JPS6469127A (en) High speed switching system
JPS57135530A (en) Communication control system
JPS5599658A (en) Automatic switching system for double system of hierarchy duplex system
JPS5614302A (en) Process control system
JPS54139404A (en) Circuit fault process system of on-line data transmission system
JPS5696346A (en) Supervisory and control system of multisystem
JPS5644929A (en) Spare machine switching control system
JPS5425648A (en) Coupling unit
JPS542612A (en) Fault-protective circuit of signal transmitter
JPS5567818A (en) Microcomputer system
JPS5432233A (en) File access control system for common use between systems
JPS55108039A (en) Information transmission system for duplex system computer system
JPS52107741A (en) Peripheral control unit
JPS5685134A (en) Input/output controlling system for data processor
JPS57127253A (en) Switching system
JPS5596739A (en) Automatic switching stand-by system
JPS5616260A (en) Composite computer system
JPS56162167A (en) Switching system for dual computers
JPS5725059A (en) Bus control system
JPS52154320A (en) Data transmission unit
JPS6471347A (en) Message transmission reception processing system
JPS5692619A (en) Coupling method of electronic computer and direct memory access device
JPS53106535A (en) System control system
JPS5559520A (en) Output switching system for processor duplication system
JPS5320731A (en) Power source control connection system