DE602004005415D1 - Rechnersystem zur Wiedergewinnung von Daten auf Basis von Datenprioritäten - Google Patents

Rechnersystem zur Wiedergewinnung von Daten auf Basis von Datenprioritäten

Info

Publication number
DE602004005415D1
DE602004005415D1 DE602004005415T DE602004005415T DE602004005415D1 DE 602004005415 D1 DE602004005415 D1 DE 602004005415D1 DE 602004005415 T DE602004005415 T DE 602004005415T DE 602004005415 T DE602004005415 T DE 602004005415T DE 602004005415 D1 DE602004005415 D1 DE 602004005415D1
Authority
DE
Germany
Prior art keywords
data
priorities
computer system
data based
retrieving
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 - Lifetime
Application number
DE602004005415T
Other languages
English (en)
Other versions
DE602004005415T2 (de
Inventor
Hideomi Idei
Norifumi Nishikawa
Kazuhiko Mogi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of DE602004005415D1 publication Critical patent/DE602004005415D1/de
Application granted granted Critical
Publication of DE602004005415T2 publication Critical patent/DE602004005415T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G06F11/20—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
    • G06F11/2053—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 persistent mass storage functionality or persistent mass storage control functionality is redundant
    • G06F11/2056—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 persistent mass storage functionality or persistent mass storage control functionality is redundant by mirroring
    • G06F11/2071—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 persistent mass storage functionality or persistent mass storage control functionality is redundant by mirroring using a plurality of controllers
    • G06F11/2074—Asynchronous 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
    • G06F11/2053—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 persistent mass storage functionality or persistent mass storage control functionality is redundant
    • G06F11/2056—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 persistent mass storage functionality or persistent mass storage control functionality is redundant by mirroring
    • G06F11/2071—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 persistent mass storage functionality or persistent mass storage control functionality is redundant by mirroring using a plurality of controllers
    • G06F11/2076—Synchronous techniques

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Facsimiles In General (AREA)
DE602004005415T 2004-02-24 2004-04-20 Rechnersystem zur Wiedergewinnung von Daten auf Basis von Datenprioritäten Expired - Lifetime DE602004005415T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004047176 2004-02-24
JP2004047176A JP2005242403A (ja) 2004-02-24 2004-02-24 計算機システム

Publications (2)

Publication Number Publication Date
DE602004005415D1 true DE602004005415D1 (de) 2007-05-03
DE602004005415T2 DE602004005415T2 (de) 2007-12-13

Family

ID=34747427

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602004005415T Expired - Lifetime DE602004005415T2 (de) 2004-02-24 2004-04-20 Rechnersystem zur Wiedergewinnung von Daten auf Basis von Datenprioritäten

Country Status (4)

Country Link
US (1) US7266718B2 (de)
EP (1) EP1569120B1 (de)
JP (1) JP2005242403A (de)
DE (1) DE602004005415T2 (de)

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Also Published As

Publication number Publication date
DE602004005415T2 (de) 2007-12-13
EP1569120A1 (de) 2005-08-31
JP2005242403A (ja) 2005-09-08
US20050193248A1 (en) 2005-09-01
US7266718B2 (en) 2007-09-04
EP1569120B1 (de) 2007-03-21

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