JPS5786972A - Doubled computer system - Google Patents
Doubled computer systemInfo
- Publication number
- JPS5786972A JPS5786972A JP55163050A JP16305080A JPS5786972A JP S5786972 A JPS5786972 A JP S5786972A JP 55163050 A JP55163050 A JP 55163050A JP 16305080 A JP16305080 A JP 16305080A JP S5786972 A JPS5786972 A JP S5786972A
- Authority
- JP
- Japan
- Prior art keywords
- memory
- computer
- stand
- actual operation
- data
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
- Hardware Redundancy (AREA)
- Multi Processors (AREA)
Abstract
PURPOSE:To obtain a system wherein memory transfer between two computers is performed with excellent real-time characteristics and a means of diagnosing a memory transfer function by a computer at a stand-by side. CONSTITUTION:Two computers 1 and 2 using an input-output equipment in common and a doubling controller 3 controlling them by monitoring their operations are provided. When data utilized by either computer in common during actual operation is rewritten in the memory of the computer 1 in actual operation, the doubling controller 3 transfers the data to the memory of the computer 2 on a stand-by side. The computer 1 on the actual operation side updates specific data in its own memory 12 periodically in a prescribed way, and the stand-by side 2 discriminates the variation condition of corresponding specific data in its own memory 22.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55163050A JPS5786972A (en) | 1980-11-19 | 1980-11-19 | Doubled computer system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55163050A JPS5786972A (en) | 1980-11-19 | 1980-11-19 | Doubled computer system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5786972A true JPS5786972A (en) | 1982-05-31 |
JPS6119061B2 JPS6119061B2 (en) | 1986-05-15 |
Family
ID=15766214
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55163050A Granted JPS5786972A (en) | 1980-11-19 | 1980-11-19 | Doubled computer system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5786972A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60157643A (en) * | 1984-01-26 | 1985-08-17 | Yokogawa Hokushin Electric Corp | Duplex structure computer |
JPS6435634A (en) * | 1987-07-31 | 1989-02-06 | Fujitsu Ltd | Fault recovery system for switcher of disk string |
JPH01276243A (en) * | 1988-04-27 | 1989-11-06 | Yokogawa Electric Corp | Duplication control system |
JPH02132528A (en) * | 1988-11-14 | 1990-05-22 | Nec Corp | Duplex processor |
JPH02206844A (en) * | 1989-02-06 | 1990-08-16 | Hitachi Ltd | Operation method for dual controller |
JPH0371237A (en) * | 1989-08-10 | 1991-03-27 | Kyosan Electric Mfg Co Ltd | Parallel double system processor and its operating method |
JPH04142631A (en) * | 1990-10-04 | 1992-05-15 | Nec Corp | Memory content taking over system |
JPH07281917A (en) * | 1994-04-13 | 1995-10-27 | Nec Corp | Cpu switchin circuit |
JP2010181922A (en) * | 2009-02-03 | 2010-08-19 | Nec Corp | Processor peripheral circuit |
-
1980
- 1980-11-19 JP JP55163050A patent/JPS5786972A/en active Granted
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60157643A (en) * | 1984-01-26 | 1985-08-17 | Yokogawa Hokushin Electric Corp | Duplex structure computer |
JPS6435634A (en) * | 1987-07-31 | 1989-02-06 | Fujitsu Ltd | Fault recovery system for switcher of disk string |
JPH01276243A (en) * | 1988-04-27 | 1989-11-06 | Yokogawa Electric Corp | Duplication control system |
JPH02132528A (en) * | 1988-11-14 | 1990-05-22 | Nec Corp | Duplex processor |
JPH02206844A (en) * | 1989-02-06 | 1990-08-16 | Hitachi Ltd | Operation method for dual controller |
JPH0371237A (en) * | 1989-08-10 | 1991-03-27 | Kyosan Electric Mfg Co Ltd | Parallel double system processor and its operating method |
JPH04142631A (en) * | 1990-10-04 | 1992-05-15 | Nec Corp | Memory content taking over system |
JPH07281917A (en) * | 1994-04-13 | 1995-10-27 | Nec Corp | Cpu switchin circuit |
JP2010181922A (en) * | 2009-02-03 | 2010-08-19 | Nec Corp | Processor peripheral circuit |
Also Published As
Publication number | Publication date |
---|---|
JPS6119061B2 (en) | 1986-05-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0193104A3 (en) | Data transfer control | |
DE69325106D1 (en) | READINESS SYSTEM FOR COMPUTER SCREEN WITH LOW ENERGY CONSUMPTION | |
JPS5786972A (en) | Doubled computer system | |
JPS54117603A (en) | Line monitor system | |
JPS52147287A (en) | Process control equipment | |
JPS54124902A (en) | Data transmission-reception system | |
JPS5510263A (en) | Data collection controller | |
JPS53942A (en) | Double loop system back-up method | |
JPS56103707A (en) | Monitor and control system for plant | |
JPS5324727A (en) | Control system for power supply | |
Todd | Exploiting structure in fixed-point computation | |
JPS56155403A (en) | Backup system for process control system | |
JPS57164318A (en) | Information processing system | |
JPS55123704A (en) | Maintenance device of control unit | |
Narendra et al. | Bounded error adaptive control, part 2 | |
JPS5493903A (en) | Test system for backup circuit | |
JPS5363941A (en) | Input/output system | |
JPS5786970A (en) | Doubled computer system | |
JPS56135252A (en) | Computer system for process control | |
JPS55110352A (en) | Backup system between data processors | |
JPS56152390A (en) | Trunk control interface circuit | |
JPS559215A (en) | Information processing system | |
JPS5324728A (en) | Control system for power suppl y | |
JPS5715545A (en) | Line switching device | |
JPS53138240A (en) | Data input control system |