JPS55110352A - Backup system between data processors - Google Patents
Backup system between data processorsInfo
- Publication number
- JPS55110352A JPS55110352A JP1764279A JP1764279A JPS55110352A JP S55110352 A JPS55110352 A JP S55110352A JP 1764279 A JP1764279 A JP 1764279A JP 1764279 A JP1764279 A JP 1764279A JP S55110352 A JPS55110352 A JP S55110352A
- Authority
- JP
- Japan
- Prior art keywords
- control
- information
- status
- nest
- backing
- 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
Landscapes
- Feedback Control In General (AREA)
Abstract
PURPOSE: To facilitate smooth backing-up by controlling common status information by two CPUs and then by giving a right to control.
CONSTITUTION: When CPUμA with a right to control gets out of order and its activity signal RUN/DOWN stops arriving, control information ACTL and activity information ARDY in a nest control status fall through the operation of hardware. Then when nest control status control program CP is carried into effect, CPUμBi sets control information BCTL to the nest control status by knowing that the right to control is not determined and operation mode alternation switch K is placed at position AB. Next, backing-up operation starts on obtaining the right to control.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1764279A JPS55110352A (en) | 1979-02-16 | 1979-02-16 | Backup system between data processors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1764279A JPS55110352A (en) | 1979-02-16 | 1979-02-16 | Backup system between data processors |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55110352A true JPS55110352A (en) | 1980-08-25 |
Family
ID=11949506
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1764279A Pending JPS55110352A (en) | 1979-02-16 | 1979-02-16 | Backup system between data processors |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55110352A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5915101U (en) * | 1982-07-21 | 1984-01-30 | 富士電機株式会社 | Controller backup device |
-
1979
- 1979-02-16 JP JP1764279A patent/JPS55110352A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5915101U (en) * | 1982-07-21 | 1984-01-30 | 富士電機株式会社 | Controller backup device |
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