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
Links
- 238000000034 method Methods 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 1
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
- G06F12/08—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)
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 (de) | 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 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01110528U (de) * | 1988-01-21 | 1989-07-26 |
Families Citing this family (8)
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)
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 |
-
1980
- 1980-11-28 JP JP55167742A patent/JPS5790770A/ja active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01110528U (de) * | 1988-01-21 | 1989-07-26 |
Also Published As
Publication number | Publication date |
---|---|
JPS5790770A (en) | 1982-06-05 |
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