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GB2345362B - Information processing system - Google Patents

Information processing system

Info

Publication number
GB2345362B
GB2345362B GB0006990A GB0006990A GB2345362B GB 2345362 B GB2345362 B GB 2345362B GB 0006990 A GB0006990 A GB 0006990A GB 0006990 A GB0006990 A GB 0006990A GB 2345362 B GB2345362 B GB 2345362B
Authority
GB
United Kingdom
Prior art keywords
information processing
processing system
information
processing
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.)
Expired - Fee Related
Application number
GB0006990A
Other versions
GB2345362A (en
GB0006990D0 (en
Inventor
Tohru Watabe
Yasutomo Sakurai
Takumi Kishino
Yoshio Hirose
Kouichi Odahara
Kazuhiro Nonomura
Takumi Takeno
Shinya Kato
Takato Noda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP07354196A external-priority patent/JP3502216B2/en
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority claimed from GB9614344A external-priority patent/GB2303234B/en
Publication of GB0006990D0 publication Critical patent/GB0006990D0/en
Publication of GB2345362A publication Critical patent/GB2345362A/en
Application granted granted Critical
Publication of GB2345362B publication Critical patent/GB2345362B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F11/1629—Error detection by comparing the output of redundant processing systems
    • G06F11/1654—Error detection by comparing the output of redundant processing systems where the output of only one of the redundant processing components can drive the attached hardware, e.g. memory or I/O
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F11/1658—Data re-synchronization of a redundant component, or initial sync of replacement, additional or spare unit
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F11/1675—Temporal synchronisation or re-synchronisation of redundant processing components
    • G06F11/1679—Temporal synchronisation or re-synchronisation of redundant processing components at clock signal level
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F11/18—Error detection or correction of the data by redundancy in hardware using passive fault-masking of the redundant circuits
    • G06F11/181—Eliminating the failing redundant component
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F11/18—Error detection or correction of the data by redundancy in hardware using passive fault-masking of the redundant circuits
    • G06F11/182—Error detection or correction of the data by redundancy in hardware using passive fault-masking of the redundant circuits based on mutual exchange of the output between redundant processing components
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F11/2002—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 interconnections or communication control functionality are redundant
    • G06F11/2007—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 interconnections or communication control functionality are redundant using redundant communication media
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F11/14—Error detection or correction of the data by redundancy in operation
    • G06F11/1402—Saving, restoring, recovering or retrying
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Hardware Redundancy (AREA)
GB0006990A 1995-07-13 1996-07-08 Information processing system Expired - Fee Related GB2345362B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP17710295 1995-07-13
JP07354196A JP3502216B2 (en) 1995-07-13 1996-03-28 Information processing equipment
GB9614344A GB2303234B (en) 1995-07-13 1996-07-08 Information processing system

Publications (3)

Publication Number Publication Date
GB0006990D0 GB0006990D0 (en) 2000-05-10
GB2345362A GB2345362A (en) 2000-07-05
GB2345362B true GB2345362B (en) 2000-08-23

Family

ID=27268383

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0006990A Expired - Fee Related GB2345362B (en) 1995-07-13 1996-07-08 Information processing system
GB9929773A Expired - Fee Related GB2342479B (en) 1995-07-13 1996-07-08 Information processing system

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB9929773A Expired - Fee Related GB2342479B (en) 1995-07-13 1996-07-08 Information processing system

Country Status (1)

Country Link
GB (2) GB2345362B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6539337B1 (en) * 2000-06-15 2003-03-25 Innovative Technology Licensing, Llc Embedded diagnostic system and method
JP4555713B2 (en) * 2005-03-17 2010-10-06 富士通株式会社 Error notification method and information processing apparatus
JP4330547B2 (en) * 2005-03-17 2009-09-16 富士通株式会社 Information processing system control method, information processing system, information processing system control program, and redundant configuration control device
CN116599869B (en) * 2022-02-07 2025-11-25 北京中创信测科技股份有限公司 A method and apparatus for detecting TCP connections
US20240118901A1 (en) * 2022-10-07 2024-04-11 Xilinx, Inc. Switching between redundant and non-redundant modes of software execution

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2268817A (en) * 1992-07-17 1994-01-19 Integrated Micro Products Ltd Fault-tolerant computer system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5434997A (en) * 1992-10-02 1995-07-18 Compaq Computer Corp. Method and apparatus for testing and debugging a tightly coupled mirrored processing system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2268817A (en) * 1992-07-17 1994-01-19 Integrated Micro Products Ltd Fault-tolerant computer system

Also Published As

Publication number Publication date
GB9929773D0 (en) 2000-02-09
GB2342479A (en) 2000-04-12
GB2342479B (en) 2000-08-09
GB2345362A (en) 2000-07-05
GB0006990D0 (en) 2000-05-10

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20050708