JPS5710845A - Diagnostic method of other system - Google Patents

Diagnostic method of other system

Info

Publication number
JPS5710845A
JPS5710845A JP8405780A JP8405780A JPS5710845A JP S5710845 A JPS5710845 A JP S5710845A JP 8405780 A JP8405780 A JP 8405780A JP 8405780 A JP8405780 A JP 8405780A JP S5710845 A JPS5710845 A JP S5710845A
Authority
JP
Japan
Prior art keywords
control
fault
control system
normal service
spare
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
JP8405780A
Other languages
Japanese (ja)
Other versions
JPS634210B2 (en
Inventor
Koshu Yoshizaki
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 JP8405780A priority Critical patent/JPS5710845A/en
Publication of JPS5710845A publication Critical patent/JPS5710845A/en
Publication of JPS634210B2 publication Critical patent/JPS634210B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing

Abstract

PURPOSE:To protect the whole system from influence of a fault, by making a double system a spare stand-by system, changing over to a spare system in the event of a fault, and also diagnosing a fault by a normal service sysem in a system whose control system has been doubled. CONSTITUTION:In a store program control type information processing system whose control system has been doubled to a system A and a system B, the control system A executes a control processing as a normal service system, and the control system B stands by as a spare system. When a processor 1A detects that a fault has occured in the course of control, for instance, a fault has occured in a peripheral control device 3A, a signal is sent to a system control 6, and the normal service system is changed over to the control system B. After the sysem has been changed over, a processor 1B sends a diagnostic program to the control system A which is faulty, through transfer devices 5B, 5A, and a fault is diagnosed by the control system A. Its result is returned to the control system B which has becomes a normal service system, is analyzed, and a faulty place is decided and is displayed.
JP8405780A 1980-06-23 1980-06-23 Diagnostic method of other system Granted JPS5710845A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8405780A JPS5710845A (en) 1980-06-23 1980-06-23 Diagnostic method of other system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8405780A JPS5710845A (en) 1980-06-23 1980-06-23 Diagnostic method of other system

Publications (2)

Publication Number Publication Date
JPS5710845A true JPS5710845A (en) 1982-01-20
JPS634210B2 JPS634210B2 (en) 1988-01-28

Family

ID=13819859

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8405780A Granted JPS5710845A (en) 1980-06-23 1980-06-23 Diagnostic method of other system

Country Status (1)

Country Link
JP (1) JPS5710845A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62138935A (en) * 1985-12-11 1987-06-22 Hitachi Ltd Decentralized processing system
US6192485B1 (en) 1998-01-13 2001-02-20 Fujitsu Limited Redundant apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4932032A (en) * 1972-07-28 1974-03-23
JPS52109844A (en) * 1976-03-11 1977-09-14 Fujitsu Ltd Diagnostic system
JPS5680896A (en) * 1979-12-03 1981-07-02 Fujitsu Ltd Main memory device information recovery system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4932032A (en) * 1972-07-28 1974-03-23
JPS52109844A (en) * 1976-03-11 1977-09-14 Fujitsu Ltd Diagnostic system
JPS5680896A (en) * 1979-12-03 1981-07-02 Fujitsu Ltd Main memory device information recovery system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62138935A (en) * 1985-12-11 1987-06-22 Hitachi Ltd Decentralized processing system
US6192485B1 (en) 1998-01-13 2001-02-20 Fujitsu Limited Redundant apparatus

Also Published As

Publication number Publication date
JPS634210B2 (en) 1988-01-28

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