JP3872692B2 - データを回復するためにチェックサムを利用するシステムおよび方法 - Google Patents

データを回復するためにチェックサムを利用するシステムおよび方法 Download PDF

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Publication number
JP3872692B2
JP3872692B2 JP2002003536A JP2002003536A JP3872692B2 JP 3872692 B2 JP3872692 B2 JP 3872692B2 JP 2002003536 A JP2002003536 A JP 2002003536A JP 2002003536 A JP2002003536 A JP 2002003536A JP 3872692 B2 JP3872692 B2 JP 3872692B2
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Japan
Prior art keywords
memory
checksum
data
data value
location
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Expired - Fee Related
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JP2002003536A
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English (en)
Japanese (ja)
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JP2002251331A (ja
JP2002251331A5 (cg-RX-API-DMAC7.html
Inventor
ブライアン・ホーナング
グレゴリー・エス・パルマー
ポール・エフ・ボーゲル
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HP Inc
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Hewlett Packard Co
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    • 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
    • G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
    • G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
    • G06F11/1076—Parity data used in redundant arrays of independent storages, e.g. in RAID systems
    • G06F11/1088—Reconstruction on already foreseen single or plurality of spare disks
    • 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
    • G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
    • G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
    • G06F11/1004—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's to protect a block of data words, e.g. CRC or checksum

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)
JP2002003536A 2001-01-12 2002-01-10 データを回復するためにチェックサムを利用するシステムおよび方法 Expired - Fee Related JP3872692B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/759853 2001-01-12
US09/759,853 US6317857B1 (en) 2001-01-12 2001-01-12 System and method for utilizing checksums to recover data

Publications (3)

Publication Number Publication Date
JP2002251331A JP2002251331A (ja) 2002-09-06
JP2002251331A5 JP2002251331A5 (cg-RX-API-DMAC7.html) 2005-03-17
JP3872692B2 true JP3872692B2 (ja) 2007-01-24

Family

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JP2002003536A Expired - Fee Related JP3872692B2 (ja) 2001-01-12 2002-01-10 データを回復するためにチェックサムを利用するシステムおよび方法

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Country Link
US (1) US6317857B1 (cg-RX-API-DMAC7.html)
JP (1) JP3872692B2 (cg-RX-API-DMAC7.html)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12147209B2 (en) * 2021-03-29 2024-11-19 Stmicroelectronics S.R.L. Microcontroller unit and corresponding method of operation

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59157887A (ja) 1983-02-28 1984-09-07 Hitachi Ltd 情報処理装置
US4849978A (en) 1987-07-02 1989-07-18 International Business Machines Corporation Memory unit backup using checksum
US5130992A (en) * 1990-04-16 1992-07-14 International Business Machines Corporaiton File-based redundant parity protection in a parallel computing system
US5208813A (en) * 1990-10-23 1993-05-04 Array Technology Corporation On-line reconstruction of a failed redundant array system
US5446691A (en) 1994-03-15 1995-08-29 Shablamm! Computer Inc. Interleave technique for accessing digital memory
JPH0887424A (ja) * 1994-09-16 1996-04-02 Toshiba Corp 電子計算機
JPH08286844A (ja) * 1995-04-13 1996-11-01 Hitachi Ltd パリティ生成制御方法およびディスク制御装置
US5630054A (en) * 1995-04-18 1997-05-13 Mti Technology Center Method and apparatus for storing and retrieving error check information
US5761695A (en) 1995-09-19 1998-06-02 Hitachi, Ltd. Cache memory control method and apparatus, and method and apparatus for controlling memory capable of interleave control
JP2000010738A (ja) * 1998-06-17 2000-01-14 Toshiba Corp ディスクアレイシステム、同システムに適用される記憶容量拡張方法および記録媒体

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Publication number Publication date
JP2002251331A (ja) 2002-09-06
US6317857B1 (en) 2001-11-13

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