JPS648848B2 - - Google Patents

Info

Publication number
JPS648848B2
JPS648848B2 JP55167742A JP16774280A JPS648848B2 JP S648848 B2 JPS648848 B2 JP S648848B2 JP 55167742 A JP55167742 A JP 55167742A JP 16774280 A JP16774280 A JP 16774280A JP S648848 B2 JPS648848 B2 JP S648848B2
Authority
JP
Japan
Prior art keywords
data
magnetic disk
storage device
external storage
control memory
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.)
Expired
Application number
JP55167742A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5790770A (en
Inventor
Minoru Shibamya
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 JP55167742A priority Critical patent/JPS5790770A/ja
Publication of JPS5790770A publication Critical patent/JPS5790770A/ja
Publication of JPS648848B2 publication Critical patent/JPS648848B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
JP55167742A 1980-11-28 1980-11-28 Data backup system Granted JPS5790770A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55167742A JPS5790770A (en) 1980-11-28 1980-11-28 Data backup system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55167742A JPS5790770A (en) 1980-11-28 1980-11-28 Data backup system

Publications (2)

Publication Number Publication Date
JPS5790770A JPS5790770A (en) 1982-06-05
JPS648848B2 true JPS648848B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1989-02-15

Family

ID=15855266

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55167742A Granted JPS5790770A (en) 1980-11-28 1980-11-28 Data backup system

Country Status (1)

Country Link
JP (1) JPS5790770A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01110528U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1988-01-21 1989-07-26

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59197947A (ja) * 1983-04-25 1984-11-09 Fujitsu Ltd 二重化フアイルの情報更新方式
JPS63140352A (ja) * 1986-12-02 1988-06-11 Nippon Steel Corp オンライン・システムのデ−タ・ベ−ス記憶装置
JPS6468826A (en) * 1987-08-25 1989-03-14 Ibm Data processing system and method for managing data memory
JPH0373037A (ja) * 1989-05-26 1991-03-28 Hitachi Ltd データベース障害回復方法
JP2780821B2 (ja) * 1989-09-22 1998-07-30 株式会社日立製作所 オンライン中のダンプ方式およびディスクサブシステム
US5553307A (en) * 1992-04-17 1996-09-03 Hitachi, Ltd. Method and device for transferring noncontiguous blocks in one transfer start by creating bit-map indicating which block is to be transferred
US5555389A (en) * 1993-07-07 1996-09-10 Hitachi, Ltd. Storage controller for performing dump processing
JP3136258B2 (ja) * 1995-09-27 2001-02-19 三菱電機株式会社 ディスク更新ログ記録方式

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5842895B2 (ja) * 1977-08-17 1983-09-22 富士通株式会社 履歴情報高速度処理方式
JPS5476044A (en) * 1977-11-30 1979-06-18 Fujitsu Ltd Recovery data correction process system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01110528U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1988-01-21 1989-07-26

Also Published As

Publication number Publication date
JPS5790770A (en) 1982-06-05

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