GB2342479B - Information processing system - Google Patents

Information processing system

Info

Publication number
GB2342479B
GB2342479B GB9929773A GB9929773A GB2342479B GB 2342479 B GB2342479 B GB 2342479B GB 9929773 A GB9929773 A GB 9929773A GB 9929773 A GB9929773 A GB 9929773A GB 2342479 B GB2342479 B GB 2342479B
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
GB9929773A
Other versions
GB9929773D0 (en
GB2342479A (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 to GB0007412A priority Critical patent/GB2345365B/en
Priority to GB9614344A priority patent/GB2303234B/en
Priority to GB0007303A priority patent/GB2345364B/en
Priority claimed from GB9614344A external-priority patent/GB2303234B/en
Publication of GB9929773D0 publication Critical patent/GB9929773D0/en
Publication of GB2342479A publication Critical patent/GB2342479A/en
Application granted granted Critical
Publication of GB2342479B publication Critical patent/GB2342479B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • G06F11/1629—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; 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
    • G06F11/1658—Data re-synchronization of a redundant component, or initial sync of replacement, additional or spare unit
    • 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
    • G06F11/1675—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; 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
    • G06F11/18—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; 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
    • G06F11/18—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; 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
    • G06F11/2002—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; 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
    • G06F11/14—Error detection or correction of the data by redundancy in operation
    • G06F11/1402—Saving, restoring, recovering or retrying
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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)
GB9929773A 1995-07-13 1996-07-08 Information processing system Expired - Fee Related GB2342479B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB0007412A GB2345365B (en) 1995-07-13 1996-07-08 Information processing system
GB9614344A GB2303234B (en) 1995-07-13 1996-07-08 Information processing system
GB0007303A GB2345364B (en) 1995-07-13 1996-07-08 Information processing system

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
GB9929773D0 GB9929773D0 (en) 2000-02-09
GB2342479A GB2342479A (en) 2000-04-12
GB2342479B true GB2342479B (en) 2000-08-09

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 Before (1)

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

Country Status (1)

Country Link
GB (2) GB2345362B (en)

Families Citing this family (4)

* 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
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
JP4555713B2 (en) * 2005-03-17 2010-10-06 富士通株式会社 Error notification method and information processing apparatus
US20240118901A1 (en) * 2022-10-07 2024-04-11 Xilinx, Inc. Switching between redundant and non-redundant modes of software execution

Citations (2)

* 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
WO1994008293A1 (en) * 1992-10-02 1994-04-14 Compaq Computer Corporation Method and apparatus for operating tightly coupled mirrored processors

Patent Citations (2)

* 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
WO1994008293A1 (en) * 1992-10-02 1994-04-14 Compaq Computer Corporation Method and apparatus for operating tightly coupled mirrored processors

Also Published As

Publication number Publication date
GB2345362A (en) 2000-07-05
GB9929773D0 (en) 2000-02-09
GB2342479A (en) 2000-04-12
GB0006990D0 (en) 2000-05-10
GB2345362B (en) 2000-08-23

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Legal Events

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

Effective date: 20050708