JPS6476345A - Disk cache control system - Google Patents
Disk cache control systemInfo
- Publication number
- JPS6476345A JPS6476345A JP62235547A JP23554787A JPS6476345A JP S6476345 A JPS6476345 A JP S6476345A JP 62235547 A JP62235547 A JP 62235547A JP 23554787 A JP23554787 A JP 23554787A JP S6476345 A JPS6476345 A JP S6476345A
- Authority
- JP
- Japan
- Prior art keywords
- data
- disk
- stored
- control system
- written
- 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
Links
Abstract
PURPOSE:To assure the identity of data by writing data in a disk device sharing data after purging those data to be written in the cache memories in other disk devices. CONSTITUTION:When data stored in a shared disk device 6 are rewritten, the device 6 is reserved by a reserving part 3-2. Then an address and processing value are informed to other disk devices via an address/processing value communication part 3-3. At the same time, the corresponding data if stored in a cache memory 3-1 is purged away and also data are written in the device 6. Thus the consistency is assured for those data stored in the memories 3-1 built in the devices which share the device 6.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62235547A JPS6476345A (en) | 1987-09-18 | 1987-09-18 | Disk cache control system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62235547A JPS6476345A (en) | 1987-09-18 | 1987-09-18 | Disk cache control system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6476345A true JPS6476345A (en) | 1989-03-22 |
Family
ID=16987597
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62235547A Pending JPS6476345A (en) | 1987-09-18 | 1987-09-18 | Disk cache control system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6476345A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0971286A2 (en) * | 1998-07-08 | 2000-01-12 | Hitachi, Ltd. | Storage control apparatus |
US6591336B2 (en) | 2000-07-06 | 2003-07-08 | Nec Corporation | Technique for maintaining coherency between shared-disk and disk caches |
WO2012137098A1 (en) * | 2011-04-04 | 2012-10-11 | International Business Machines Corporation | Extending cache for an external storage system into individual servers |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4731652A (en) * | 1966-02-22 | 1972-11-13 | ||
JPS5025139A (en) * | 1973-07-06 | 1975-03-17 | ||
JPS50116145A (en) * | 1974-02-26 | 1975-09-11 | ||
JPS5491028A (en) * | 1977-12-28 | 1979-07-19 | Nec Corp | Memory control system of multiprocessor system |
JPS59220856A (en) * | 1983-05-30 | 1984-12-12 | Toshiba Corp | Disc cache memory back-up system |
JPS62147548A (en) * | 1985-12-23 | 1987-07-01 | Mitsubishi Electric Corp | External storage controller |
-
1987
- 1987-09-18 JP JP62235547A patent/JPS6476345A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4731652A (en) * | 1966-02-22 | 1972-11-13 | ||
JPS5025139A (en) * | 1973-07-06 | 1975-03-17 | ||
JPS50116145A (en) * | 1974-02-26 | 1975-09-11 | ||
JPS5491028A (en) * | 1977-12-28 | 1979-07-19 | Nec Corp | Memory control system of multiprocessor system |
JPS59220856A (en) * | 1983-05-30 | 1984-12-12 | Toshiba Corp | Disc cache memory back-up system |
JPS62147548A (en) * | 1985-12-23 | 1987-07-01 | Mitsubishi Electric Corp | External storage controller |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0971286A2 (en) * | 1998-07-08 | 2000-01-12 | Hitachi, Ltd. | Storage control apparatus |
EP0971286A3 (en) * | 1998-07-08 | 2006-09-06 | Hitachi, Ltd. | Storage control apparatus |
US6591336B2 (en) | 2000-07-06 | 2003-07-08 | Nec Corporation | Technique for maintaining coherency between shared-disk and disk caches |
WO2012137098A1 (en) * | 2011-04-04 | 2012-10-11 | International Business Machines Corporation | Extending cache for an external storage system into individual servers |
US9098397B2 (en) | 2011-04-04 | 2015-08-04 | International Business Machines Corporation | Extending cache for an external storage system into individual servers |
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