DE19983084T1 - Verfahren und Vorrichtung zum asynchronen Aktualisieren einer Spiegelung einer Quelleneinrichtung - Google Patents

Verfahren und Vorrichtung zum asynchronen Aktualisieren einer Spiegelung einer Quelleneinrichtung

Info

Publication number
DE19983084T1
DE19983084T1 DE19983084T DE19983084T DE19983084T1 DE 19983084 T1 DE19983084 T1 DE 19983084T1 DE 19983084 T DE19983084 T DE 19983084T DE 19983084 T DE19983084 T DE 19983084T DE 19983084 T1 DE19983084 T1 DE 19983084T1
Authority
DE
Germany
Prior art keywords
mirroring
asynchronously updating
source device
asynchronously
updating
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.)
Ceased
Application number
DE19983084T
Other languages
English (en)
Inventor
Dan Arnon
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.)
EMC Corp
Original Assignee
EMC Corp
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 EMC Corp filed Critical EMC Corp
Publication of DE19983084T1 publication Critical patent/DE19983084T1/de
Ceased 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
    • G06F11/2064—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 while ensuring consistency
    • 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
    • G06F11/2066—Optimisation of the communication load

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)
  • Techniques For Improving Reliability Of Storages (AREA)
DE19983084T 1998-04-01 1999-03-29 Verfahren und Vorrichtung zum asynchronen Aktualisieren einer Spiegelung einer Quelleneinrichtung Ceased DE19983084T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/053,420 US6157991A (en) 1998-04-01 1998-04-01 Method and apparatus for asynchronously updating a mirror of a source device
PCT/US1999/006719 WO1999050747A1 (en) 1998-04-01 1999-03-29 Method and apparatus for asynchronously updating a mirror of a source device

Publications (1)

Publication Number Publication Date
DE19983084T1 true DE19983084T1 (de) 2001-08-02

Family

ID=21984101

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19983084T Ceased DE19983084T1 (de) 1998-04-01 1999-03-29 Verfahren und Vorrichtung zum asynchronen Aktualisieren einer Spiegelung einer Quelleneinrichtung

Country Status (5)

Country Link
US (1) US6157991A (de)
JP (1) JP2003517652A (de)
DE (1) DE19983084T1 (de)
GB (1) GB2353122B (de)
WO (1) WO1999050747A1 (de)

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Also Published As

Publication number Publication date
US6157991A (en) 2000-12-05
WO1999050747A1 (en) 1999-10-07
GB0024421D0 (en) 2000-11-22
JP2003517652A (ja) 2003-05-27
GB2353122B (en) 2002-10-16
GB2353122A (en) 2001-02-14

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Effective date: 20141119