JPS5730063A - File backup system - Google Patents

File backup system

Info

Publication number
JPS5730063A
JPS5730063A JP10524280A JP10524280A JPS5730063A JP S5730063 A JPS5730063 A JP S5730063A JP 10524280 A JP10524280 A JP 10524280A JP 10524280 A JP10524280 A JP 10524280A JP S5730063 A JPS5730063 A JP S5730063A
Authority
JP
Japan
Prior art keywords
data
cartridge
data recording
backup
file
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
JP10524280A
Other languages
Japanese (ja)
Inventor
Masashi Nozawa
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 JP10524280A priority Critical patent/JPS5730063A/en
Publication of JPS5730063A publication Critical patent/JPS5730063A/en
Pending legal-status Critical Current

Links

Landscapes

  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Memory System Of A Hierarchy Structure (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)

Abstract

PURPOSE: To use the memory medium for backup use with high efficiency and low cost, by transferring only the data renewed with file to a backup file.
CONSTITUTION: When an access mechanism 6 moves a cartridge 16 to data recording mechanism 7,7' under the control of an acess controller 5, a data recording control mechanism 8 wrires in the data transferred from a staging disc controller 11 with the data recording mechanism 7,7' to renew the data of a cartridge 19. From the instruction from a MSC 9, the backup cartridge 19 for the renewed cartridge 19 is carried to the data recording mechanisms 7,7' as same as before to renew the same data.
COPYRIGHT: (C)1982,JPO&Japio
JP10524280A 1980-07-31 1980-07-31 File backup system Pending JPS5730063A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10524280A JPS5730063A (en) 1980-07-31 1980-07-31 File backup system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10524280A JPS5730063A (en) 1980-07-31 1980-07-31 File backup system

Publications (1)

Publication Number Publication Date
JPS5730063A true JPS5730063A (en) 1982-02-18

Family

ID=14402177

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10524280A Pending JPS5730063A (en) 1980-07-31 1980-07-31 File backup system

Country Status (1)

Country Link
JP (1) JPS5730063A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63168755A (en) * 1987-01-06 1988-07-12 Arimura Giken Kk Backup system for ic card
JPS6415845A (en) * 1987-07-10 1989-01-19 Hitachi Ltd Memory with buffer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54128229A (en) * 1978-03-29 1979-10-04 Fujitsu Ltd Magnetic disk control unit containing data buffer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54128229A (en) * 1978-03-29 1979-10-04 Fujitsu Ltd Magnetic disk control unit containing data buffer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63168755A (en) * 1987-01-06 1988-07-12 Arimura Giken Kk Backup system for ic card
JPS6415845A (en) * 1987-07-10 1989-01-19 Hitachi Ltd Memory with buffer

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