DE69841768D1 - Speichersteuerung für asynchrone Datenspiegelung - Google Patents

Speichersteuerung für asynchrone Datenspiegelung

Info

Publication number
DE69841768D1
DE69841768D1 DE69841768T DE69841768T DE69841768D1 DE 69841768 D1 DE69841768 D1 DE 69841768D1 DE 69841768 T DE69841768 T DE 69841768T DE 69841768 T DE69841768 T DE 69841768T DE 69841768 D1 DE69841768 D1 DE 69841768D1
Authority
DE
Germany
Prior art keywords
memory controller
asynchronous data
data mirroring
mirroring
asynchronous
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
DE69841768T
Other languages
English (en)
Inventor
Akira Yamamoto
Katsunori Nakamura
Shigeru Kishiro
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
Application granted granted Critical
Publication of DE69841768D1 publication Critical patent/DE69841768D1/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
    • G06F11/2064—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
    • G06F11/2071—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
    • 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
    • G06F2201/00—Indexing scheme relating to error detection, to error correction, and to monitoring
    • G06F2201/82—Solving problems relating to consistency

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Memory System Of A Hierarchy Structure (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
DE69841768T 1997-09-12 1998-09-03 Speichersteuerung für asynchrone Datenspiegelung Expired - Lifetime DE69841768D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24817797A JP3414218B2 (ja) 1997-09-12 1997-09-12 記憶制御装置

Publications (1)

Publication Number Publication Date
DE69841768D1 true DE69841768D1 (de) 2010-08-26

Family

ID=17174358

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69841768T Expired - Lifetime DE69841768D1 (de) 1997-09-12 1998-09-03 Speichersteuerung für asynchrone Datenspiegelung
DE69838898T Expired - Lifetime DE69838898T2 (de) 1997-09-12 1998-09-03 Doppelte Plattenspeichersteuerungen

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE69838898T Expired - Lifetime DE69838898T2 (de) 1997-09-12 1998-09-03 Doppelte Plattenspeichersteuerungen

Country Status (4)

Country Link
US (5) US6408370B2 (de)
EP (2) EP1843249B1 (de)
JP (1) JP3414218B2 (de)
DE (2) DE69841768D1 (de)

Families Citing this family (92)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3414218B2 (ja) 1997-09-12 2003-06-09 株式会社日立製作所 記憶制御装置
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US6539462B1 (en) 1999-07-12 2003-03-25 Hitachi Data Systems Corporation Remote data copy using a prospective suspend command
JP3743975B2 (ja) * 1999-09-27 2006-02-08 株式会社日立製作所 記憶装置システム
US6757797B1 (en) 1999-09-30 2004-06-29 Fujitsu Limited Copying method between logical disks, disk-storage system and its storage medium
US6684306B1 (en) * 1999-12-16 2004-01-27 Hitachi, Ltd. Data backup in presence of pending hazard
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JP4434407B2 (ja) * 2000-01-28 2010-03-17 株式会社日立製作所 サブシステム及びこれらの統合システム
JP4044717B2 (ja) * 2000-03-31 2008-02-06 株式会社日立製作所 記憶サブシステムのデータ二重化方法及びデータ二重化システム
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Also Published As

Publication number Publication date
DE69838898D1 (de) 2008-02-07
JPH1185408A (ja) 1999-03-30
US7191303B2 (en) 2007-03-13
US20070038833A1 (en) 2007-02-15
US20040088484A1 (en) 2004-05-06
EP1843249A3 (de) 2008-12-24
EP0902370A3 (de) 2006-05-03
EP0902370A2 (de) 1999-03-17
EP1843249B1 (de) 2010-07-14
US20010029570A1 (en) 2001-10-11
JP3414218B2 (ja) 2003-06-09
US7216208B2 (en) 2007-05-08
EP1843249A2 (de) 2007-10-10
US6408370B2 (en) 2002-06-18
US20020129202A1 (en) 2002-09-12
EP0902370B1 (de) 2007-12-26
DE69838898T2 (de) 2008-08-07
US6615332B2 (en) 2003-09-02
US7657707B2 (en) 2010-02-02
US20040199737A1 (en) 2004-10-07

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