DE69129444T2 - On-Line-Wiederherstellung von Redundanz-Information in einem redundanten Matrixsystem - Google Patents

On-Line-Wiederherstellung von Redundanz-Information in einem redundanten Matrixsystem

Info

Publication number
DE69129444T2
DE69129444T2 DE69129444T DE69129444T DE69129444T2 DE 69129444 T2 DE69129444 T2 DE 69129444T2 DE 69129444 T DE69129444 T DE 69129444T DE 69129444 T DE69129444 T DE 69129444T DE 69129444 T2 DE69129444 T2 DE 69129444T2
Authority
DE
Germany
Prior art keywords
block
new
redundancy
redundancy block
data block
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
DE69129444T
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English (en)
Other versions
DE69129444D1 (de
Inventor
David Charles Stallmo
William Alexander Brant
David Gordon
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24534426&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69129444(T2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by EMC Corp filed Critical EMC Corp
Publication of DE69129444D1 publication Critical patent/DE69129444D1/de
Application granted granted Critical
Publication of DE69129444T2 publication Critical patent/DE69129444T2/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
    • G06F11/08—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
    • 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
    • G06F11/14—Error detection or correction of the data by redundancy in operation
    • G06F11/1402—Saving, restoring, recovering or retrying
    • G06F11/1415—Saving, restoring, recovering or retrying at system level
    • G06F11/1435—Saving, restoring, recovering or retrying at system level using file system or storage system metadata
DE69129444T 1990-12-21 1991-11-27 On-Line-Wiederherstellung von Redundanz-Information in einem redundanten Matrixsystem Expired - Lifetime DE69129444T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/632,182 US5235601A (en) 1990-12-21 1990-12-21 On-line restoration of redundancy information in a redundant array system

Publications (2)

Publication Number Publication Date
DE69129444D1 DE69129444D1 (de) 1998-06-25
DE69129444T2 true DE69129444T2 (de) 1999-02-18

Family

ID=24534426

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69129444T Expired - Lifetime DE69129444T2 (de) 1990-12-21 1991-11-27 On-Line-Wiederherstellung von Redundanz-Information in einem redundanten Matrixsystem
DE0837393T Pending DE837393T1 (de) 1990-12-21 1991-11-27 On-line-Wiederherstellung redundanter Information in ein redundantes Matrixsystem

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE0837393T Pending DE837393T1 (de) 1990-12-21 1991-11-27 On-line-Wiederherstellung redundanter Information in ein redundantes Matrixsystem

Country Status (6)

Country Link
US (2) US5235601A (de)
EP (2) EP0492808B1 (de)
JP (1) JP3071017B2 (de)
AU (1) AU8828691A (de)
CA (1) CA2056235C (de)
DE (2) DE69129444T2 (de)

Families Citing this family (141)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5544347A (en) 1990-09-24 1996-08-06 Emc Corporation Data storage system controlled remote data mirroring with respectively maintained data indices
JPH04184634A (ja) * 1990-11-20 1992-07-01 Matsushita Electric Ind Co Ltd マイクロコンピュータ
JP3409859B2 (ja) * 1991-01-31 2003-05-26 株式会社日立製作所 制御装置の制御方法
US6874101B2 (en) * 1991-01-31 2005-03-29 Hitachi, Ltd. Storage unit subsystem
JP2743606B2 (ja) * 1991-04-11 1998-04-22 三菱電機株式会社 アレイ型記録装置
US5499337A (en) * 1991-09-27 1996-03-12 Emc Corporation Storage device array architecture with solid-state redundancy unit
US5313626A (en) * 1991-12-17 1994-05-17 Jones Craig S Disk drive array with efficient background rebuilding
US5398253A (en) * 1992-03-11 1995-03-14 Emc Corporation Storage unit generation of redundancy information in a redundant storage array system
US6604118B2 (en) 1998-07-31 2003-08-05 Network Appliance, Inc. File system image transfer
US7174352B2 (en) 1993-06-03 2007-02-06 Network Appliance, Inc. File system image transfer
US6138126A (en) 1995-05-31 2000-10-24 Network Appliance, Inc. Method for allocating files in a file system integrated with a raid disk sub-system
DE69431186T2 (de) * 1993-06-03 2003-05-08 Network Appliance Inc Verfahren und Dateisystem zur Zuordnung von Datei-Blöcken zu Speicherplatz in einem RAID-Plattensystem
DK0702815T3 (da) * 1993-06-03 2000-12-18 Network Appliance Inc Opsætning af et filsystem til skrivning på et hvilket som helst sted
DE69434381T2 (de) * 1993-06-04 2006-01-19 Network Appliance, Inc., Sunnyvale Verfahren zur Paritätsdarstellung in einem Raid-Untersystem unter Verwendung eines nichtflüchtigen Speichers
ATE172309T1 (de) * 1993-07-01 1998-10-15 Legent Corp Anordnung und verfahren zur verteilten datenverwaltung in vernetzten rechnersystemen
US5396620A (en) * 1993-12-21 1995-03-07 Storage Technology Corporation Method for writing specific values last into data storage groups containing redundancy
US5485571A (en) * 1993-12-23 1996-01-16 International Business Machines Corporation Method and apparatus for providing distributed sparing with uniform workload distribution in failures
US5446855A (en) * 1994-02-07 1995-08-29 Buslogic, Inc. System and method for disk array data transfer
US5657439A (en) * 1994-08-23 1997-08-12 International Business Machines Corporation Distributed subsystem sparing
JP3661205B2 (ja) * 1994-09-09 2005-06-15 株式会社日立製作所 ディスクアレイシステムおよびディスクアレイシステムのパリティデータの生成方法
US5412668A (en) * 1994-09-22 1995-05-02 International Business Machines Corporation Parity striping feature for optical disks
US5623595A (en) * 1994-09-26 1997-04-22 Oracle Corporation Method and apparatus for transparent, real time reconstruction of corrupted data in a redundant array data storage system
US5838906A (en) * 1994-10-17 1998-11-17 The Regents Of The University Of California Distributed hypermedia method for automatically invoking external application providing interaction and display of embedded objects within a hypermedia document
US5488701A (en) * 1994-11-17 1996-01-30 International Business Machines Corporation In log sparing for log structured arrays
US5533190A (en) * 1994-12-21 1996-07-02 At&T Global Information Solutions Company Method for maintaining parity-data consistency in a disk array
JP3253473B2 (ja) * 1995-01-27 2002-02-04 富士通株式会社 二重化された共用メモリの等価性回復処理方法および装置
US5678061A (en) * 1995-07-19 1997-10-14 Lucent Technologies Inc. Method for employing doubly striped mirroring of data and reassigning data streams scheduled to be supplied by failed disk to respective ones of remaining disks
US5657468A (en) * 1995-08-17 1997-08-12 Ambex Technologies, Inc. Method and apparatus for improving performance in a reduntant array of independent disks
US5875456A (en) * 1995-08-17 1999-02-23 Nstor Corporation Storage device array and methods for striping and unstriping data and for adding and removing disks online to/from a raid storage array
US5933592A (en) * 1995-10-13 1999-08-03 Digital Equipment Corporation Promoting device level error to raidset level error to restore redundacy in a raid array data storage system
US5737744A (en) * 1995-10-13 1998-04-07 Compaq Computer Corporation Disk array controller for performing exclusive or operations
US5826001A (en) * 1995-10-13 1998-10-20 Digital Equipment Corporation Reconstructing data blocks in a raid array data storage system having storage device metadata and raid set metadata
US5778426A (en) * 1995-10-23 1998-07-07 Symbios, Inc. Methods and structure to maintain a two level cache in a RAID controller and thereby selecting a preferred posting method
US5708771A (en) * 1995-11-21 1998-01-13 Emc Corporation Fault tolerant controller system and method
US5805787A (en) * 1995-12-29 1998-09-08 Emc Corporation Disk based disk cache interfacing system and method
US5724501A (en) * 1996-03-29 1998-03-03 Emc Corporation Quick recovery of write cache in a fault tolerant I/O system
US6055577A (en) * 1996-05-06 2000-04-25 Oracle Corporation System for granting bandwidth for real time processes and assigning bandwidth for non-real time processes while being forced to periodically re-arbitrate for new assigned bandwidth
US6092066A (en) * 1996-05-31 2000-07-18 Emc Corporation Method and apparatus for independent operation of a remote data facility
US6101497A (en) * 1996-05-31 2000-08-08 Emc Corporation Method and apparatus for independent and simultaneous access to a common data set
US5734815A (en) * 1996-08-22 1998-03-31 Emc Corporation Method and apparatus for efficient cyclical redundancy check (CRC) maintenance for sub-sector writes
US6029231A (en) * 1996-12-03 2000-02-22 Emc Corporation Retrieval of data stored on redundant disks across a network using remote procedure calls
US6032224A (en) * 1996-12-03 2000-02-29 Emc Corporation Hierarchical performance system for managing a plurality of storage units with different access speeds
US5794254A (en) * 1996-12-03 1998-08-11 Fairbanks Systems Group Incremental computer file backup using a two-step comparison of first two characters in the block and a signature with pre-stored character and signature sets
US6038665A (en) * 1996-12-03 2000-03-14 Fairbanks Systems Group System and method for backing up computer files over a wide area computer network
US6460123B1 (en) 1996-12-03 2002-10-01 Emc Corporation Mirroring computer data
US5926836A (en) * 1996-12-03 1999-07-20 Emc Corporation Computer and associated method for restoring data backed up on archive media
US5875478A (en) * 1996-12-03 1999-02-23 Emc Corporation Computer backup using a file system, network, disk, tape and remote archiving repository media system
US5889933A (en) * 1997-01-30 1999-03-30 Aiwa Co., Ltd. Adaptive power failure recovery
US5974503A (en) * 1997-04-25 1999-10-26 Emc Corporation Storage and access of continuous media files indexed as lists of raid stripe sets associated with file names
US5951691A (en) * 1997-05-16 1999-09-14 International Business Machines Corporation Method and system for detection and reconstruction of corrupted data in a data storage subsystem
US6016552A (en) * 1997-06-06 2000-01-18 The Chinese University Of Hong Kong Object striping focusing on data object
US5991894A (en) * 1997-06-06 1999-11-23 The Chinese University Of Hong Kong Progressive redundancy transmission
US6457130B2 (en) 1998-03-03 2002-09-24 Network Appliance, Inc. File access control in a multi-protocol file server
US6317844B1 (en) 1998-03-10 2001-11-13 Network Appliance, Inc. File server storage arrangement
US6119244A (en) 1998-08-25 2000-09-12 Network Appliance, Inc. Coordinating persistent status information with multiple file servers
US6343984B1 (en) 1998-11-30 2002-02-05 Network Appliance, Inc. Laminar flow duct cooling system
US6519762B1 (en) 1998-12-15 2003-02-11 Dell Usa, L.P. Method and apparatus for restoration of a computer system hard drive
US6820088B1 (en) * 2000-04-10 2004-11-16 Research In Motion Limited System and method for synchronizing data records between multiple databases
US7072916B1 (en) 2000-08-18 2006-07-04 Network Appliance, Inc. Instant snapshot
US6636879B1 (en) 2000-08-18 2003-10-21 Network Appliance, Inc. Space allocation in a write anywhere file system
US6728922B1 (en) 2000-08-18 2004-04-27 Network Appliance, Inc. Dynamic data space
US6804819B1 (en) 2000-09-18 2004-10-12 Hewlett-Packard Development Company, L.P. Method, system, and computer program product for a data propagation platform and applications of same
US7386610B1 (en) 2000-09-18 2008-06-10 Hewlett-Packard Development Company, L.P. Internet protocol data mirroring
US6977927B1 (en) 2000-09-18 2005-12-20 Hewlett-Packard Development Company, L.P. Method and system of allocating storage resources in a storage area network
US6654912B1 (en) * 2000-10-04 2003-11-25 Network Appliance, Inc. Recovery of file system data in file servers mirrored file system volumes
US6952797B1 (en) 2000-10-25 2005-10-04 Andy Kahn Block-appended checksums
GB2371886B (en) * 2001-01-31 2005-06-22 Hewlett Packard Co Storage apparatus
US6606690B2 (en) 2001-02-20 2003-08-12 Hewlett-Packard Development Company, L.P. System and method for accessing a storage area network as network attached storage
US6799284B1 (en) 2001-02-28 2004-09-28 Network Appliance, Inc. Reparity bitmap RAID failure recovery
US6801003B2 (en) * 2001-03-13 2004-10-05 Color Kinetics, Incorporated Systems and methods for synchronizing lighting effects
US7308512B1 (en) 2001-05-16 2007-12-11 Network Appliance, Inc. Fiber channel adaptor for serial or parallel ATA disks
US6961800B2 (en) * 2001-09-28 2005-11-01 Hewlett-Packard Development Company, L.P. Method for improving processor performance
US6954824B2 (en) * 2001-10-15 2005-10-11 International Business Machines Corporation Method, system, and program for determining a configuration of a logical array including a plurality of storage devices
US7346831B1 (en) 2001-11-13 2008-03-18 Network Appliance, Inc. Parity assignment technique for parity declustering in a parity array of a storage system
US6851082B1 (en) 2001-11-13 2005-02-01 Network Appliance, Inc. Concentrated parity technique for handling double failures and enabling storage of more than one parity block per stripe on a storage device of a storage array
US8402346B2 (en) * 2001-12-28 2013-03-19 Netapp, Inc. N-way parity technique for enabling recovery from up to N storage device failures
US7613984B2 (en) 2001-12-28 2009-11-03 Netapp, Inc. System and method for symmetric triple parity for failing storage devices
US6993701B2 (en) * 2001-12-28 2006-01-31 Network Appliance, Inc. Row-diagonal parity technique for enabling efficient recovery from double failures in a storage array
US7073115B2 (en) * 2001-12-28 2006-07-04 Network Appliance, Inc. Correcting multiple block data loss in a storage array using a combination of a single diagonal parity group and multiple row parity groups
US7640484B2 (en) 2001-12-28 2009-12-29 Netapp, Inc. Triple parity technique for enabling efficient recovery from triple failures in a storage array
US7080278B1 (en) 2002-03-08 2006-07-18 Network Appliance, Inc. Technique for correcting multiple storage device failures in a storage array
US7539991B2 (en) * 2002-03-21 2009-05-26 Netapp, Inc. Method and apparatus for decomposing I/O tasks in a raid system
US7437727B2 (en) * 2002-03-21 2008-10-14 Network Appliance, Inc. Method and apparatus for runtime resource deadlock avoidance in a raid system
US7254813B2 (en) * 2002-03-21 2007-08-07 Network Appliance, Inc. Method and apparatus for resource allocation in a raid system
US7200715B2 (en) 2002-03-21 2007-04-03 Network Appliance, Inc. Method for writing contiguous arrays of stripes in a RAID storage system using mapped block writes
US6715048B1 (en) * 2002-03-28 2004-03-30 Emc Corporation System and method for efficiently performing a restore operation in a data storage environment
US6976146B1 (en) 2002-05-21 2005-12-13 Network Appliance, Inc. System and method for emulating block appended checksums on storage devices by sector stealing
US7024586B2 (en) * 2002-06-24 2006-04-04 Network Appliance, Inc. Using file system information in raid data reconstruction and migration
JP2004046658A (ja) 2002-07-15 2004-02-12 Hitachi Ltd データ転送方法
US7185144B2 (en) * 2003-11-24 2007-02-27 Network Appliance, Inc. Semi-static distribution technique
US7664913B2 (en) * 2003-03-21 2010-02-16 Netapp, Inc. Query-based spares management technique
US7328364B1 (en) 2003-03-21 2008-02-05 Network Appliance, Inc. Technique for coherent suspension of I/O operations in a RAID subsystem
US7111147B1 (en) * 2003-03-21 2006-09-19 Network Appliance, Inc. Location-independent RAID group virtual block management
US7143235B1 (en) 2003-03-21 2006-11-28 Network Appliance, Inc. Proposed configuration management behaviors in a raid subsystem
US7424637B1 (en) 2003-03-21 2008-09-09 Networks Appliance, Inc. Technique for managing addition of disks to a volume of a storage system
US7275179B1 (en) 2003-04-24 2007-09-25 Network Appliance, Inc. System and method for reducing unrecoverable media errors in a disk subsystem
US7246301B2 (en) * 2003-06-13 2007-07-17 Dell Products L.P. Method for storage array error correction
US7146461B1 (en) 2003-07-01 2006-12-05 Veritas Operating Corporation Automated recovery from data corruption of data volumes in parity RAID storage systems
US7577807B2 (en) 2003-09-23 2009-08-18 Symantec Operating Corporation Methods and devices for restoring a portion of a data store
US7827362B2 (en) 2004-08-24 2010-11-02 Symantec Corporation Systems, apparatus, and methods for processing I/O requests
US7730222B2 (en) 2004-08-24 2010-06-01 Symantec Operating System Processing storage-related I/O requests using binary tree data structures
US7239581B2 (en) 2004-08-24 2007-07-03 Symantec Operating Corporation Systems and methods for synchronizing the internal clocks of a plurality of processor modules
US7631120B2 (en) 2004-08-24 2009-12-08 Symantec Operating Corporation Methods and apparatus for optimally selecting a storage buffer for the storage of data
US7577806B2 (en) 2003-09-23 2009-08-18 Symantec Operating Corporation Systems and methods for time dependent data storage and recovery
US7287133B2 (en) 2004-08-24 2007-10-23 Symantec Operating Corporation Systems and methods for providing a modification history for a location within a data store
US7991748B2 (en) 2003-09-23 2011-08-02 Symantec Corporation Virtual data store creation and use
US7409587B2 (en) 2004-08-24 2008-08-05 Symantec Operating Corporation Recovering from storage transaction failures using checkpoints
US7725760B2 (en) 2003-09-23 2010-05-25 Symantec Operating Corporation Data storage system
US7296008B2 (en) 2004-08-24 2007-11-13 Symantec Operating Corporation Generation and use of a time map for accessing a prior image of a storage device
US7904428B2 (en) 2003-09-23 2011-03-08 Symantec Corporation Methods and apparatus for recording write requests directed to a data store
GB0322424D0 (en) * 2003-09-24 2003-10-29 Ibm Error detection in redundant array of storage units
US7328305B2 (en) * 2003-11-03 2008-02-05 Network Appliance, Inc. Dynamic parity distribution technique
US7428691B2 (en) * 2003-11-12 2008-09-23 Norman Ken Ouchi Data recovery from multiple failed data blocks and storage units
US7647451B1 (en) 2003-11-24 2010-01-12 Netapp, Inc. Data placement technique for striping data containers across volumes of a storage system cluster
US7366837B2 (en) * 2003-11-24 2008-04-29 Network Appliance, Inc. Data placement technique for striping data containers across volumes of a storage system cluster
US7263629B2 (en) * 2003-11-24 2007-08-28 Network Appliance, Inc. Uniform and symmetric double failure correcting technique for protecting against two disk failures in a disk array
US7702948B1 (en) * 2004-07-13 2010-04-20 Adaptec, Inc. Auto-configuration of RAID systems
US20060075281A1 (en) * 2004-09-27 2006-04-06 Kimmel Jeffrey S Use of application-level context information to detect corrupted data in a storage system
US7321905B2 (en) * 2004-09-30 2008-01-22 International Business Machines Corporation System and method for efficient data recovery in a storage array utilizing multiple parity slopes
JP2006107351A (ja) * 2004-10-08 2006-04-20 Fujitsu Ltd データ移行方法、記憶装置及びプログラム
US20060143412A1 (en) * 2004-12-28 2006-06-29 Philippe Armangau Snapshot copy facility maintaining read performance and write performance
US7398460B1 (en) 2005-01-31 2008-07-08 Network Appliance, Inc. Technique for efficiently organizing and distributing parity blocks among storage devices of a storage array
EP1952236B1 (de) 2005-10-14 2017-06-14 Symantec Operating Corporation Technik zur timeline-komprimierung in einem datenspeicher
US8560503B1 (en) 2006-01-26 2013-10-15 Netapp, Inc. Content addressable storage system
US20080070688A1 (en) * 2006-09-20 2008-03-20 John Loehrer Real-time gaming system having scalable database
US7822921B2 (en) 2006-10-31 2010-10-26 Netapp, Inc. System and method for optimizing write operations in storage systems
US7613947B1 (en) 2006-11-30 2009-11-03 Netapp, Inc. System and method for storage takeover
US7647526B1 (en) 2006-12-06 2010-01-12 Netapp, Inc. Reducing reconstruct input/output operations in storage systems
US8209587B1 (en) 2007-04-12 2012-06-26 Netapp, Inc. System and method for eliminating zeroing of disk drives in RAID arrays
US7840837B2 (en) * 2007-04-27 2010-11-23 Netapp, Inc. System and method for protecting memory during system initialization
US8898536B2 (en) * 2007-04-27 2014-11-25 Netapp, Inc. Multi-core engine for detecting bit errors
US7836331B1 (en) 2007-05-15 2010-11-16 Netapp, Inc. System and method for protecting the contents of memory during error conditions
US7975102B1 (en) 2007-08-06 2011-07-05 Netapp, Inc. Technique to avoid cascaded hot spotting
JP5022240B2 (ja) 2008-01-08 2012-09-12 インターナショナル・ビジネス・マシーンズ・コーポレーション テープ媒体へのデータの上書き方法、及びその方法を具備した磁気テープ装置
US9158579B1 (en) 2008-11-10 2015-10-13 Netapp, Inc. System having operation queues corresponding to operation execution time
US8495417B2 (en) * 2009-01-09 2013-07-23 Netapp, Inc. System and method for redundancy-protected aggregates
JP5279785B2 (ja) * 2010-09-17 2013-09-04 株式会社東芝 コントローラ、記憶装置、およびプログラム
US9672106B2 (en) 2014-12-30 2017-06-06 Nutanix, Inc. Architecture for implementing erasure coding
CN106294193B (zh) * 2015-06-03 2019-10-15 杭州海康威视系统技术有限公司 存储设备及基于该存储设备的分块存储方法
US9910786B2 (en) * 2015-11-03 2018-03-06 Intel Corporation Efficient redundant array of independent disks (RAID) write hole solutions
US10567009B2 (en) 2016-12-06 2020-02-18 Nutanix, Inc. Dynamic erasure coding

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3893178A (en) * 1973-12-19 1975-07-01 Information Storage Systems Synchronization of multiple disc drives
US4092732A (en) * 1977-05-31 1978-05-30 International Business Machines Corporation System for recovering data stored in failed memory unit
US4467421A (en) * 1979-10-18 1984-08-21 Storage Technology Corporation Virtual storage system and method
US4562576A (en) * 1982-08-14 1985-12-31 International Computers Limited Data storage apparatus
FR2561428B1 (fr) * 1984-03-16 1986-09-12 Bull Sa Procede d'enregistrement dans une memoire a disques et systeme de memoire a disques
US4667326A (en) * 1984-12-20 1987-05-19 Advanced Micro Devices, Inc. Method and apparatus for error detection and correction in systems comprising floppy and/or hard disk drives
US4754397A (en) * 1985-02-15 1988-06-28 Tandem Computers Incorporated Fault tolerant modular subsystems for computers
JPS61264599A (ja) * 1985-05-16 1986-11-22 Fujitsu Ltd 半導体記憶装置
US4722085A (en) * 1986-02-03 1988-01-26 Unisys Corp. High capacity disk storage system having unusually high fault tolerance level and bandpass
US4761785B1 (en) * 1986-06-12 1996-03-12 Ibm Parity spreading to enhance storage access
US4775978A (en) * 1987-01-12 1988-10-04 Magnetic Peripherals Inc. Data error correction system
US4849978A (en) * 1987-07-02 1989-07-18 International Business Machines Corporation Memory unit backup using checksum
US4870643A (en) * 1987-11-06 1989-09-26 Micropolis Corporation Parallel drive array storage system
US4899342A (en) * 1988-02-01 1990-02-06 Thinking Machines Corporation Method and apparatus for operating multi-unit array of memories
US4993030A (en) * 1988-04-22 1991-02-12 Amdahl Corporation File system for a plurality of storage classes
US4989206A (en) * 1988-06-28 1991-01-29 Storage Technology Corporation Disk drive memory
US4914656A (en) * 1988-06-28 1990-04-03 Storage Technology Corporation Disk drive memory
AU630635B2 (en) * 1988-11-14 1992-11-05 Emc Corporation Arrayed disk drive system and method
US5148432A (en) * 1988-11-14 1992-09-15 Array Technology Corporation Arrayed disk drive system and method
US5007053A (en) * 1988-11-30 1991-04-09 International Business Machines Corporation Method and apparatus for checksum address generation in a fail-safe modular memory
US5134619A (en) * 1990-04-06 1992-07-28 Sf2 Corporation Failure-tolerant mass storage system
US5088081A (en) * 1990-03-28 1992-02-11 Prime Computer, Inc. Method and apparatus for improved disk access
US5130992A (en) * 1990-04-16 1992-07-14 International Business Machines Corporaiton File-based redundant parity protection in a parallel computing system

Also Published As

Publication number Publication date
JP3071017B2 (ja) 2000-07-31
EP0837393A2 (de) 1998-04-22
EP0492808A3 (en) 1993-01-13
DE837393T1 (de) 1998-09-03
EP0837393A3 (de) 2000-10-11
DE69129444D1 (de) 1998-06-25
CA2056235C (en) 2000-10-03
AU8828691A (en) 1992-06-25
CA2056235A1 (en) 1992-06-22
EP0492808A2 (de) 1992-07-01
EP0492808B1 (de) 1998-05-20
US5613059A (en) 1997-03-18
US5235601A (en) 1993-08-10
JPH06131121A (ja) 1994-05-13

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