JPS5789150A - Method for making coincident stored information of multiple electronic computer system - Google Patents

Method for making coincident stored information of multiple electronic computer system

Info

Publication number
JPS5789150A
JPS5789150A JP55165310A JP16531080A JPS5789150A JP S5789150 A JPS5789150 A JP S5789150A JP 55165310 A JP55165310 A JP 55165310A JP 16531080 A JP16531080 A JP 16531080A JP S5789150 A JPS5789150 A JP S5789150A
Authority
JP
Japan
Prior art keywords
computer
file
stored information
bit
area
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
JP55165310A
Other languages
Japanese (ja)
Inventor
Yoshio Koiwa
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 JP55165310A priority Critical patent/JPS5789150A/en
Publication of JPS5789150A publication Critical patent/JPS5789150A/en
Pending 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
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Hardware Redundancy (AREA)
  • Multi Processors (AREA)

Abstract

PURPOSE:To contrive equalizations of loads and speed-up of processings with two computers, by using two computers in such a way that, when stored information is updated in one computer, the other computer transfers the stored memory to its memory and deposits the information in the memory, and thus, stored information of each system is coincident with each other always. CONSTITUTION:When a computer 1A of a system A updates stored information in a file 11a of an external auxiliary memory 2A, a bit 51 of an updated file storing area 5 is set. A computer 1B of another system B periodically checks whether the bit of the area 5 is set or not. When the computer 1B finds that the bit 51 is set, the computer 1B reads a pointer area of the system A, and reads the stored information after obtaining the address of the file 11a from an address 31a corresponding to the row of the bit 51 of the area 5. Then, the computer 1B obtains the address of a file 11b from a pointer area 3B through an address 31b corresponding to the row of the bit 51 of the area 5, and writes the information stored in the file 11a in the file 11b of the series B.
JP55165310A 1980-11-26 1980-11-26 Method for making coincident stored information of multiple electronic computer system Pending JPS5789150A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55165310A JPS5789150A (en) 1980-11-26 1980-11-26 Method for making coincident stored information of multiple electronic computer system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55165310A JPS5789150A (en) 1980-11-26 1980-11-26 Method for making coincident stored information of multiple electronic computer system

Publications (1)

Publication Number Publication Date
JPS5789150A true JPS5789150A (en) 1982-06-03

Family

ID=15809897

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55165310A Pending JPS5789150A (en) 1980-11-26 1980-11-26 Method for making coincident stored information of multiple electronic computer system

Country Status (1)

Country Link
JP (1) JPS5789150A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59105188A (en) * 1982-12-08 1984-06-18 Fujitsu Ltd Program synchronizing system
JPS63263420A (en) * 1987-04-22 1988-10-31 Mitsubishi Kasei Corp Time-series data processing system for process variable in transient state of plant
JPS6419436A (en) * 1987-07-15 1989-01-23 Oki Electric Ind Co Ltd Synchronous operation data collating system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59105188A (en) * 1982-12-08 1984-06-18 Fujitsu Ltd Program synchronizing system
JPS6349817B2 (en) * 1982-12-08 1988-10-05 Fujitsu Ltd
JPS63263420A (en) * 1987-04-22 1988-10-31 Mitsubishi Kasei Corp Time-series data processing system for process variable in transient state of plant
JPS6419436A (en) * 1987-07-15 1989-01-23 Oki Electric Ind Co Ltd Synchronous operation data collating system

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