JPS5714961A - File control system - Google Patents

File control system

Info

Publication number
JPS5714961A
JPS5714961A JP8941280A JP8941280A JPS5714961A JP S5714961 A JPS5714961 A JP S5714961A JP 8941280 A JP8941280 A JP 8941280A JP 8941280 A JP8941280 A JP 8941280A JP S5714961 A JPS5714961 A JP S5714961A
Authority
JP
Japan
Prior art keywords
block
data
writing
file
write
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
JP8941280A
Other languages
Japanese (ja)
Inventor
Shizuo Nomura
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP8941280A priority Critical patent/JPS5714961A/en
Publication of JPS5714961A publication Critical patent/JPS5714961A/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
    • G06F11/14—Error detection or correction of the data by redundancy in operation

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)

Abstract

PURPOSE:To ensure an easy recovery from power supply interruption for a file control system, by providing a write mark showing that a significant data is written, in addition to the data which is used by the user for every block in the file. CONSTITUTION:A data write command requested by a user is taken into a command register 11, and the data is taken into a buffer 15. The designated block address is set to a register 13 through a control part 12. Then a pattern with a wirte mark turned on is set to a control character register 14 to carry out the writing of a block. The user requests the write commands successively for writing. In case the file process is interrupted because the power supply is interrupted under an execution of writing or other factors, the write mark detects an off-block, and the process is restarted at this block.
JP8941280A 1980-06-30 1980-06-30 File control system Pending JPS5714961A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8941280A JPS5714961A (en) 1980-06-30 1980-06-30 File control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8941280A JPS5714961A (en) 1980-06-30 1980-06-30 File control system

Publications (1)

Publication Number Publication Date
JPS5714961A true JPS5714961A (en) 1982-01-26

Family

ID=13969924

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8941280A Pending JPS5714961A (en) 1980-06-30 1980-06-30 File control system

Country Status (1)

Country Link
JP (1) JPS5714961A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58224703A (en) * 1982-06-23 1983-12-27 永大産業株式会社 Method of joining wood
JPS63292328A (en) * 1987-05-26 1988-11-29 Okuma Mach Works Ltd System for restoring program under edition after power interruption
JPH0296849A (en) * 1988-07-18 1990-04-09 Digital Equip Corp <Dec> Accurate one-time semantics in tp cueing system
JPH07121420A (en) * 1993-10-25 1995-05-12 Nec Corp Data storage system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58224703A (en) * 1982-06-23 1983-12-27 永大産業株式会社 Method of joining wood
JPS63292328A (en) * 1987-05-26 1988-11-29 Okuma Mach Works Ltd System for restoring program under edition after power interruption
JPH0296849A (en) * 1988-07-18 1990-04-09 Digital Equip Corp <Dec> Accurate one-time semantics in tp cueing system
JPH07121420A (en) * 1993-10-25 1995-05-12 Nec Corp Data storage system

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