SE454730B - Forfarande och datorutrustning for stotfri omkoppling av funktionen fran aktiva enheter till beredskapsenheter i en centralenhet - Google Patents

Forfarande och datorutrustning for stotfri omkoppling av funktionen fran aktiva enheter till beredskapsenheter i en centralenhet

Info

Publication number
SE454730B
SE454730B SE8603945A SE8603945A SE454730B SE 454730 B SE454730 B SE 454730B SE 8603945 A SE8603945 A SE 8603945A SE 8603945 A SE8603945 A SE 8603945A SE 454730 B SE454730 B SE 454730B
Authority
SE
Sweden
Prior art keywords
memory
unit
active
units
processor
Prior art date
Application number
SE8603945A
Other languages
English (en)
Swedish (sv)
Other versions
SE8603945D0 (sv
SE8603945L (sv
Inventor
M Kap
Original Assignee
Asea Ab
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
Application filed by Asea Ab filed Critical Asea Ab
Priority to SE8603945A priority Critical patent/SE454730B/sv
Publication of SE8603945D0 publication Critical patent/SE8603945D0/xx
Priority to DE8787113359T priority patent/DE3781486T2/de
Priority to EP87113359A priority patent/EP0260625B1/de
Priority to US07/097,784 priority patent/US4941087A/en
Publication of SE8603945L publication Critical patent/SE8603945L/xx
Publication of SE454730B publication Critical patent/SE454730B/sv

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/48—Program initiating; Program switching, e.g. by interrupt
    • G06F9/4806—Task transfer initiation or dispatching
    • G06F9/4812—Task transfer initiation or dispatching by interrupt, e.g. masked
    • 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 operations
    • G06F11/1402—Saving, restoring, recovering or retrying
    • G06F11/1415—Saving, restoring, recovering or retrying at system level
    • G06F11/142—Reconfiguring to eliminate the error
    • 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
    • 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
    • G06F11/2023—Failover techniques
    • G06F11/2025—Failover techniques using centralised failover control functionality
    • 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
    • G06F11/2023—Failover techniques
    • G06F11/2028—Failover techniques eliminating a faulty processor or activating a spare

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)
  • Retry When Errors Occur (AREA)
SE8603945A 1986-09-19 1986-09-19 Forfarande och datorutrustning for stotfri omkoppling av funktionen fran aktiva enheter till beredskapsenheter i en centralenhet SE454730B (sv)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE8603945A SE454730B (sv) 1986-09-19 1986-09-19 Forfarande och datorutrustning for stotfri omkoppling av funktionen fran aktiva enheter till beredskapsenheter i en centralenhet
DE8787113359T DE3781486T2 (de) 1986-09-19 1987-09-12 Verfahren zur stossfreien umschaltung von aktiven einheiten zu ersatzeinheiten in datenverarbeitungsanlagen und datenverarbeitungsanlage zur durchfuehrung dieses verfahrens.
EP87113359A EP0260625B1 (de) 1986-09-19 1987-09-12 Verfahren zur stossfreien Umschaltung von aktiven Einheiten zu Ersatzeinheiten in Datenverarbeitungsanlagen und Datenverarbeitungsanlage zur Durchführung dieses Verfahrens
US07/097,784 US4941087A (en) 1986-09-19 1987-09-18 System for bumpless changeover between active units and backup units by establishing rollback points and logging write and read operations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8603945A SE454730B (sv) 1986-09-19 1986-09-19 Forfarande och datorutrustning for stotfri omkoppling av funktionen fran aktiva enheter till beredskapsenheter i en centralenhet

Publications (3)

Publication Number Publication Date
SE8603945D0 SE8603945D0 (sv) 1986-09-19
SE8603945L SE8603945L (sv) 1988-03-20
SE454730B true SE454730B (sv) 1988-05-24

Family

ID=20365646

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8603945A SE454730B (sv) 1986-09-19 1986-09-19 Forfarande och datorutrustning for stotfri omkoppling av funktionen fran aktiva enheter till beredskapsenheter i en centralenhet

Country Status (4)

Country Link
US (1) US4941087A (de)
EP (1) EP0260625B1 (de)
DE (1) DE3781486T2 (de)
SE (1) SE454730B (de)

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Also Published As

Publication number Publication date
DE3781486T2 (de) 1993-04-08
EP0260625A1 (de) 1988-03-23
SE8603945D0 (sv) 1986-09-19
SE8603945L (sv) 1988-03-20
EP0260625B1 (de) 1992-09-02
DE3781486D1 (de) 1992-10-08
US4941087A (en) 1990-07-10

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