JPS54133859A - Backing-up method of electronic computer system - Google Patents
Backing-up method of electronic computer systemInfo
- Publication number
- JPS54133859A JPS54133859A JP4153578A JP4153578A JPS54133859A JP S54133859 A JPS54133859 A JP S54133859A JP 4153578 A JP4153578 A JP 4153578A JP 4153578 A JP4153578 A JP 4153578A JP S54133859 A JPS54133859 A JP S54133859A
- Authority
- JP
- Japan
- Prior art keywords
- computer
- operation state
- state signal
- electronic
- computer system
- 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
- Hardware Redundancy (AREA)
- Multi Processors (AREA)
- Small-Scale Networks (AREA)
Abstract
PURPOSE: To back up a computer system efficiently and rapidly by transmitting a fixed operation state signal from a subordinate computer to a host computer via communication circuit at every desirable time and by discriminating the state of the operation state signal.
CONSTITUTION: Host electronic computer 1 controlling several subordinate electronic computers 2 is connected to computers 2 via communicaton circuits TL. To back up an electronic computer in an abnormal state by using either computer 1 or electronic back-up computer 4 prepared separately, a fixed operation state signal is transmitted from each computer 2 to computer 1 via circuit TL at every desirable time and computer 1 discriminates the state of the operation state signal. Consequently, when the operation state signal is sent properly, the function of computer 4 is substituted with that of computer 1, so that the backing up of the computer system can be attained efficiently and rapidly which becomes abnormal.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4153578A JPS54133859A (en) | 1978-04-08 | 1978-04-08 | Backing-up method of electronic computer system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4153578A JPS54133859A (en) | 1978-04-08 | 1978-04-08 | Backing-up method of electronic computer system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54133859A true JPS54133859A (en) | 1979-10-17 |
Family
ID=12611098
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4153578A Pending JPS54133859A (en) | 1978-04-08 | 1978-04-08 | Backing-up method of electronic computer system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54133859A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59223040A (en) * | 1983-06-01 | 1984-12-14 | Hitachi Ltd | Double system controlling system of intelligent terminal in loop transmitting system |
JPS60158748A (en) * | 1984-01-30 | 1985-08-20 | Hitachi Ltd | Total node switching system for network system |
JPS63214842A (en) * | 1987-03-03 | 1988-09-07 | Nec Corp | System including hot stand-by system |
-
1978
- 1978-04-08 JP JP4153578A patent/JPS54133859A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59223040A (en) * | 1983-06-01 | 1984-12-14 | Hitachi Ltd | Double system controlling system of intelligent terminal in loop transmitting system |
JPH0220189B2 (en) * | 1983-06-01 | 1990-05-08 | Hitachi Ltd | |
JPS60158748A (en) * | 1984-01-30 | 1985-08-20 | Hitachi Ltd | Total node switching system for network system |
JPH0568138B2 (en) * | 1984-01-30 | 1993-09-28 | Hitachi Ltd | |
JPS63214842A (en) * | 1987-03-03 | 1988-09-07 | Nec Corp | System including hot stand-by system |
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