GB9204279D0 - Dual computer system - Google Patents
Dual computer systemInfo
- Publication number
- GB9204279D0 GB9204279D0 GB929204279A GB9204279A GB9204279D0 GB 9204279 D0 GB9204279 D0 GB 9204279D0 GB 929204279 A GB929204279 A GB 929204279A GB 9204279 A GB9204279 A GB 9204279A GB 9204279 D0 GB9204279 D0 GB 9204279D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- processor
- main system
- dual
- processor units
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
- G06F11/2097—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements maintaining the standby controller/processing unit updated
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
- G06F11/202—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant
- G06F11/2023—Failover techniques
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
- G06F11/202—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant
- G06F11/2038—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant with a single idle spare processing component
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Quality & Reliability (AREA)
- Software Systems (AREA)
- Hardware Redundancy (AREA)
- Multi Processors (AREA)
Abstract
A dual computer system constituted of duplicated processor units (PC1, PC2) and a dual control unit (DXC) for controlling which side of the two processor units to keep operating (as a main system) or on standby (as subsidiary system). One processor acts in an actually operating state with the other on standby as a guard against a failure in the main system. The dual control unit controls which processor unit is to act for the main system through the medium of two internal independent interruption means (12L, 12R) for effecting switching of the main system and the subsidiary system selectively to the two processor units as a result of an interruption in one system. Such construction improves the continuity of the control at the time of switching. <IMAGE>
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63090752A JPH0682283B2 (en) | 1988-04-13 | 1988-04-13 | Redundant processor system |
JP63096171A JPH01266634A (en) | 1988-04-19 | 1988-04-19 | Duplex control system |
JP63096172A JPH01266633A (en) | 1988-04-19 | 1988-04-19 | Duplex control system |
JP63105064A JPH0630070B2 (en) | 1988-04-27 | 1988-04-27 | Redundant control system |
JP63109955A JPH0621994B2 (en) | 1988-05-06 | 1988-05-06 | Redundant control system |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9204279D0 true GB9204279D0 (en) | 1992-04-08 |
GB2251967A GB2251967A (en) | 1992-07-22 |
GB2251967B GB2251967B (en) | 1992-10-14 |
Family
ID=27525498
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8904779A Expired - Lifetime GB2217487B (en) | 1988-04-13 | 1989-03-02 | Dual computer system |
GB9204279A Expired - Lifetime GB2251967B (en) | 1988-04-13 | 1992-02-28 | Dual computer system |
GB9204278A Expired - Lifetime GB2251966B (en) | 1988-04-13 | 1992-02-28 | Dual computer system |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8904779A Expired - Lifetime GB2217487B (en) | 1988-04-13 | 1989-03-02 | Dual computer system |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9204278A Expired - Lifetime GB2251966B (en) | 1988-04-13 | 1992-02-28 | Dual computer system |
Country Status (6)
Country | Link |
---|---|
KR (1) | KR920003453B1 (en) |
CN (1) | CN1041466C (en) |
BR (1) | BR8901738A (en) |
DE (1) | DE3911848A1 (en) |
GB (3) | GB2217487B (en) |
NL (1) | NL8900635A (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT398645B (en) * | 1991-11-04 | 1995-01-25 | Alcatel Austria Ag | COMPUTER SYSTEM |
KR970002628A (en) * | 1995-06-30 | 1997-01-28 | Non-stopping system control device and system control method using same | |
US6311289B1 (en) * | 1998-11-03 | 2001-10-30 | Telefonaktiebolaget Lm Ericsson (Publ) | Explicit state copy in a fault tolerant system using a remote write operation |
CN100419627C (en) * | 2001-09-28 | 2008-09-17 | 技嘉科技股份有限公司 | Mainboard with spare key unit and method for activating said spare key unit |
CN110745085A (en) * | 2019-10-30 | 2020-02-04 | 英业达科技有限公司 | Computer system for vehicle |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3303474A (en) * | 1963-01-17 | 1967-02-07 | Rca Corp | Duplexing system for controlling online and standby conditions of two computers |
SE313849B (en) * | 1966-03-25 | 1969-08-25 | Ericsson Telefon Ab L M | |
BE693071A (en) * | 1967-01-24 | 1967-07-24 | ||
US3864670A (en) * | 1970-09-30 | 1975-02-04 | Yokogawa Electric Works Ltd | Dual computer system with signal exchange system |
GB1412246A (en) * | 1971-09-29 | 1975-10-29 | Kent Automation Systems Ltd | Computer control arrangements |
DE2407241A1 (en) * | 1974-02-15 | 1975-08-21 | Ibm Deutschland | PROCEDURE AND ARRANGEMENT FOR INCREASING THE AVAILABILITY OF A DIGITAL COMPUTER |
FR2319264A1 (en) * | 1975-07-22 | 1977-02-18 | Labo Cent Telecommunicat | PERFECTED CONTROL SYSTEM OF SWITCHING EQUIPMENT |
FR2392569A2 (en) * | 1977-05-27 | 1978-12-22 | Labo Cent Telecommunicat | PERFECTED CONTROL SYSTEM OF SWITCHING EQUIPMENT |
DE2741379A1 (en) * | 1977-09-14 | 1979-03-15 | Siemens Ag | COMPUTER SYSTEM |
JPS5537641A (en) * | 1978-09-08 | 1980-03-15 | Fujitsu Ltd | Synchronization system for doubled processor |
US4466098A (en) * | 1982-06-11 | 1984-08-14 | Siemens Corporation | Cross channel circuit for an electronic system having two or more redundant computers |
DE3235762A1 (en) * | 1982-09-28 | 1984-03-29 | Fried. Krupp Gmbh, 4300 Essen | METHOD AND DEVICE FOR SYNCHRONIZING DATA PROCESSING SYSTEMS |
US4610013A (en) * | 1983-11-08 | 1986-09-02 | Avco Corporation | Remote multiplexer terminal with redundant central processor units |
US4823256A (en) * | 1984-06-22 | 1989-04-18 | American Telephone And Telegraph Company, At&T Bell Laboratories | Reconfigurable dual processor system |
SE454730B (en) * | 1986-09-19 | 1988-05-24 | Asea Ab | PROCEDURE AND COMPUTER EQUIPMENT FOR SHORT-FREE REPLACEMENT OF THE ACTIVITY FROM ACTIVE DEVICES TO EMERGENCY UNITS IN A CENTRAL UNIT |
US4797884A (en) * | 1986-09-29 | 1989-01-10 | Texas Instruments Incorporated | Redundant device control unit |
-
1989
- 1989-03-02 GB GB8904779A patent/GB2217487B/en not_active Expired - Lifetime
- 1989-03-15 NL NL8900635A patent/NL8900635A/en not_active Application Discontinuation
- 1989-04-11 DE DE3911848A patent/DE3911848A1/en active Granted
- 1989-04-12 BR BR898901738A patent/BR8901738A/en not_active IP Right Cessation
- 1989-04-12 KR KR1019890004858A patent/KR920003453B1/en not_active IP Right Cessation
- 1989-04-13 CN CN89102265A patent/CN1041466C/en not_active Expired - Fee Related
-
1992
- 1992-02-28 GB GB9204279A patent/GB2251967B/en not_active Expired - Lifetime
- 1992-02-28 GB GB9204278A patent/GB2251966B/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
KR890016466A (en) | 1989-11-29 |
GB2251966A (en) | 1992-07-22 |
GB8904779D0 (en) | 1989-04-12 |
BR8901738A (en) | 1989-11-21 |
GB2217487A (en) | 1989-10-25 |
CN1037417A (en) | 1989-11-22 |
GB9204278D0 (en) | 1992-04-08 |
KR920003453B1 (en) | 1992-05-01 |
GB2217487B (en) | 1992-09-23 |
DE3911848A1 (en) | 1989-10-26 |
NL8900635A (en) | 1989-11-01 |
GB2251967A (en) | 1992-07-22 |
GB2251966B (en) | 1992-10-14 |
CN1041466C (en) | 1998-12-30 |
GB2251967B (en) | 1992-10-14 |
DE3911848C2 (en) | 1991-06-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
746 | Register noted 'licences of right' (sect. 46/1977) |
Effective date: 19970307 |
|
PCNP | Patent ceased through non-payment of renewal fee |