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JPS57162050A - Exclusive control system - Google Patents

Exclusive control system

Info

Publication number
JPS57162050A
JPS57162050A JP56047424A JP4742481A JPS57162050A JP S57162050 A JPS57162050 A JP S57162050A JP 56047424 A JP56047424 A JP 56047424A JP 4742481 A JP4742481 A JP 4742481A JP S57162050 A JPS57162050 A JP S57162050A
Authority
JP
Japan
Prior art keywords
signal line
adaptors
comparison
memory data
exclusive control
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
JP56047424A
Other languages
Japanese (ja)
Other versions
JPS6125175B2 (en
Inventor
Tatsuo Matoba
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 JP56047424A priority Critical patent/JPS57162050A/en
Publication of JPS57162050A publication Critical patent/JPS57162050A/en
Publication of JPS6125175B2 publication Critical patent/JPS6125175B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Hardware Redundancy (AREA)

Abstract

PURPOSE:To prevent breakdown of a data due to careless accessing, to quickly incorporate it into a system whose repair is completed, and to continue input and output operations of the other system, by holding an exclusive control information continuously. CONSTITUTION:This system is provided with plural controllers #1, #2, adaptors #1, #2 and input/output devices, exclusive control memories #1, #2 are connected between the respective adaptors #1, #2, and control information is held by the respective control memories #1, #2. A common signal line controlling circuit is provided on these adaptors #1, #2, respectively, and each signal line controlling circuit is connected by a common signal line. In this state, when one control system is faulty, an inhibiting signal of comparison of memory data is sent to the adaptor #1 or #2 of the other system through the common signal line, and comparison of memory data is stopped. After the fault has been repaired, a copying start signal of the memory #1 or #2, a memory data request signal and a comparison inhibition release signal are sent, and the regular operation is recovered.
JP56047424A 1981-03-31 1981-03-31 Exclusive control system Granted JPS57162050A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56047424A JPS57162050A (en) 1981-03-31 1981-03-31 Exclusive control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56047424A JPS57162050A (en) 1981-03-31 1981-03-31 Exclusive control system

Publications (2)

Publication Number Publication Date
JPS57162050A true JPS57162050A (en) 1982-10-05
JPS6125175B2 JPS6125175B2 (en) 1986-06-14

Family

ID=12774767

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56047424A Granted JPS57162050A (en) 1981-03-31 1981-03-31 Exclusive control system

Country Status (1)

Country Link
JP (1) JPS57162050A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5977563A (en) * 1982-10-26 1984-05-04 Nec Corp File control processor
JPS59177666A (en) * 1983-03-28 1984-10-08 Toshiba Corp Dual bulk controller
JPS605329A (en) * 1983-06-23 1985-01-11 Fujitsu Ltd Managing system of duplex disk
JPS6349857A (en) * 1986-08-19 1988-03-02 Nec Corp File controller
JPH0212448A (en) * 1988-06-30 1990-01-17 Toshiba Corp Composite electronic computer system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH075764U (en) * 1993-06-30 1995-01-27 宝文社印刷株式会社 Message sheet for backing photos

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5977563A (en) * 1982-10-26 1984-05-04 Nec Corp File control processor
JPS59177666A (en) * 1983-03-28 1984-10-08 Toshiba Corp Dual bulk controller
JPS605329A (en) * 1983-06-23 1985-01-11 Fujitsu Ltd Managing system of duplex disk
JPS6349857A (en) * 1986-08-19 1988-03-02 Nec Corp File controller
JPH0212448A (en) * 1988-06-30 1990-01-17 Toshiba Corp Composite electronic computer system

Also Published As

Publication number Publication date
JPS6125175B2 (en) 1986-06-14

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