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JPS57197661A - Multiplex controlling system for file memory - Google Patents

Multiplex controlling system for file memory

Info

Publication number
JPS57197661A
JPS57197661A JP56082282A JP8228281A JPS57197661A JP S57197661 A JPS57197661 A JP S57197661A JP 56082282 A JP56082282 A JP 56082282A JP 8228281 A JP8228281 A JP 8228281A JP S57197661 A JPS57197661 A JP S57197661A
Authority
JP
Japan
Prior art keywords
file
memory
file memory
memory units
controlling system
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
JP56082282A
Other languages
Japanese (ja)
Inventor
Hideki Fukuoka
Kiyoto Tanaka
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP56082282A priority Critical patent/JPS57197661A/en
Publication of JPS57197661A publication Critical patent/JPS57197661A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/06—Addressing a physical block of locations, e.g. base addressing, module addressing, memory dedication

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)

Abstract

PURPOSE:To increase the reliability of a file memory, by processing from a plurality of memory units via a file memory control connected to individual buses. CONSTITUTION:A CPU 1 decides whether or not an access address exists in a plurality of memory units 2 and 3, and after the same information is written in all the memory units where the access address exists, the same information of te same address is read out from a plurality of memory units and written in a plurality of file memories 6 and 7 via individual buses 10 and 11 and file memory controllers 4 and 5 connected to the buses.
JP56082282A 1981-05-29 1981-05-29 Multiplex controlling system for file memory Pending JPS57197661A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56082282A JPS57197661A (en) 1981-05-29 1981-05-29 Multiplex controlling system for file memory

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56082282A JPS57197661A (en) 1981-05-29 1981-05-29 Multiplex controlling system for file memory

Publications (1)

Publication Number Publication Date
JPS57197661A true JPS57197661A (en) 1982-12-03

Family

ID=13770153

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56082282A Pending JPS57197661A (en) 1981-05-29 1981-05-29 Multiplex controlling system for file memory

Country Status (1)

Country Link
JP (1) JPS57197661A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02201557A (en) * 1989-01-31 1990-08-09 Toshiba Corp Redundant file access device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4947307A (en) * 1972-09-12 1974-05-08
JPS5210736B2 (en) * 1973-01-22 1977-03-25
JPS5534756A (en) * 1978-09-02 1980-03-11 Nec Corp Double recording system of magnetic disc device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4947307A (en) * 1972-09-12 1974-05-08
JPS5210736B2 (en) * 1973-01-22 1977-03-25
JPS5534756A (en) * 1978-09-02 1980-03-11 Nec Corp Double recording system of magnetic disc device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02201557A (en) * 1989-01-31 1990-08-09 Toshiba Corp Redundant file access device

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