IL104743A - מערכי דיסקות בעלי זמינות גבוהה - Google Patents

מערכי דיסקות בעלי זמינות גבוהה

Info

Publication number
IL104743A
IL104743A IL10474393A IL10474393A IL104743A IL 104743 A IL104743 A IL 104743A IL 10474393 A IL10474393 A IL 10474393A IL 10474393 A IL10474393 A IL 10474393A IL 104743 A IL104743 A IL 104743A
Authority
IL
Israel
Prior art keywords
disk
data
parity
sector
sectors
Prior art date
Application number
IL10474393A
Other languages
English (en)
Other versions
IL104743A0 (en
Original Assignee
Data General 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 Data General Corp filed Critical Data General Corp
Publication of IL104743A0 publication Critical patent/IL104743A0/xx
Publication of IL104743A publication Critical patent/IL104743A/he

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
    • G11C29/70—Masking faults in memories by using spares or by reconfiguring
    • G11C29/88—Masking faults in memories by using spares or by reconfiguring with partially good memories
    • 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
    • G06F11/1084—Degraded mode, e.g. caused by single or multiple storage removals or disk failures
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2211/00—Indexing scheme relating to details of data-processing equipment not covered by groups G06F3/00 - G06F13/00
    • G06F2211/10—Indexing scheme relating to G06F11/10
    • G06F2211/1002—Indexing scheme relating to G06F11/1076
    • G06F2211/104—Metadata, i.e. metadata associated with RAID systems with parity
IL10474393A 1992-03-06 1993-02-16 מערכי דיסקות בעלי זמינות גבוהה IL104743A (he)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/847,639 US5305326A (en) 1992-03-06 1992-03-06 High availability disk arrays

Publications (2)

Publication Number Publication Date
IL104743A0 IL104743A0 (en) 1993-06-10
IL104743A true IL104743A (he) 1995-08-31

Family

ID=25301125

Family Applications (1)

Application Number Title Priority Date Filing Date
IL10474393A IL104743A (he) 1992-03-06 1993-02-16 מערכי דיסקות בעלי זמינות גבוהה

Country Status (7)

Country Link
US (1) US5305326A (he)
EP (1) EP0559487B1 (he)
JP (1) JP3226370B2 (he)
AU (1) AU653671B2 (he)
CA (1) CA2089834A1 (he)
DE (1) DE69323225T2 (he)
IL (1) IL104743A (he)

Families Citing this family (103)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7382929B2 (en) * 1989-05-22 2008-06-03 Pixel Instruments Corporation Spatial scan replication circuit
AU653670B2 (en) * 1992-03-10 1994-10-06 Data General Corporation Improvements for high availability disk arrays
JPH05341918A (ja) * 1992-05-12 1993-12-24 Internatl Business Mach Corp <Ibm> 二重化デイスク記憶装置システムを構成するための接続装置
JP2888401B2 (ja) * 1992-08-03 1999-05-10 インターナショナル・ビジネス・マシーンズ・コーポレイション 冗長ディスクドライブアレイに対する同期方法
US5473753A (en) * 1992-10-30 1995-12-05 Intel Corporation Method of managing defects in flash disk memories
EP0701716B1 (en) * 1993-06-03 2002-08-14 Network Appliance, Inc. Method and file system for allocating blocks of files to storage space in a RAID disk system
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
US6604118B2 (en) 1998-07-31 2003-08-05 Network Appliance, Inc. File system image transfer
DE69425658T2 (de) * 1993-06-03 2001-04-19 Network Appliance Inc Anordnung eines dateisystems zum beschreiben beliebiger bereiche
DE69434381T2 (de) * 1993-06-04 2006-01-19 Network Appliance, Inc., Sunnyvale Verfahren zur Paritätsdarstellung in einem Raid-Untersystem unter Verwendung eines nichtflüchtigen Speichers
US5511227A (en) * 1993-09-30 1996-04-23 Dell Usa, L.P. Method for configuring a composite drive for a disk drive array controller
US5987622A (en) * 1993-12-10 1999-11-16 Tm Patents, Lp Parallel computer system including parallel storage subsystem including facility for correction of data in the event of failure of a storage device in parallel storage subsystem
US5396620A (en) * 1993-12-21 1995-03-07 Storage Technology Corporation Method for writing specific values last into data storage groups containing redundancy
US5911150A (en) * 1994-01-25 1999-06-08 Data General Corporation Data storage tape back-up for data processing systems using a single driver interface unit
US5463643A (en) * 1994-03-07 1995-10-31 Dell Usa, L.P. Redundant memory channel array configuration with data striping and error correction capabilities
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
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
US6098128A (en) 1995-09-18 2000-08-01 Cyberstorage Systems Corporation Universal storage management system
US5961652A (en) * 1995-10-13 1999-10-05 Compaq Computer Corporation Read checking for drive rebuild
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
US6397357B1 (en) * 1996-10-08 2002-05-28 Dell Usa, L.P. Method of testing detection and correction capabilities of ECC memory controller
US5889934A (en) * 1997-02-24 1999-03-30 Data General Corporation Data validation system for a group of data storage disks
JP3595099B2 (ja) * 1997-03-17 2004-12-02 富士通株式会社 デバイスアレイ・システム
US6092215A (en) * 1997-09-29 2000-07-18 International Business Machines Corporation System and method for reconstructing data in a storage array system
US6151659A (en) * 1997-12-22 2000-11-21 Emc Corporation Distributed raid storage system
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
US6327672B1 (en) * 1998-12-31 2001-12-04 Lsi Logic Corporation Multiple drive failure tolerant raid system
US6532548B1 (en) 1999-09-21 2003-03-11 Storage Technology Corporation System and method for handling temporary errors on a redundant array of independent tapes (RAIT)
US7000237B1 (en) * 1999-12-21 2006-02-14 Intel Corporation Method for communicating occurrence of events in a storage medium
US6584544B1 (en) * 2000-07-12 2003-06-24 Emc Corporation Method and apparatus for preparing a disk for use in a disk array
US6728922B1 (en) 2000-08-18 2004-04-27 Network Appliance, Inc. Dynamic data space
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
US6865650B1 (en) * 2000-09-29 2005-03-08 Emc Corporation System and method for hierarchical data storage
US6654912B1 (en) 2000-10-04 2003-11-25 Network Appliance, Inc. Recovery of file system data in file servers mirrored file system volumes
US7418620B1 (en) 2001-02-16 2008-08-26 Swsoft Holdings, Ltd. Fault tolerant distributed storage method and controller using (N,K) algorithms
US6961868B2 (en) 2001-02-16 2005-11-01 Swsoft Holdings, Ltd. Fault tolerant storage system and method using a network of servers
US6668264B1 (en) 2001-04-03 2003-12-23 Network Appliance, Inc. Resynchronization of a target volume with a source volume
US7209973B2 (en) 2001-04-09 2007-04-24 Swsoft Holdings, Ltd. Distributed network data storage system and method
US6871263B2 (en) * 2001-08-28 2005-03-22 Sedna Patent Services, Llc Method and apparatus for striping data onto a plurality of disk drives
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
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
US8402346B2 (en) * 2001-12-28 2013-03-19 Netapp, Inc. N-way parity technique for enabling recovery from up to N storage device failures
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
US7613984B2 (en) * 2001-12-28 2009-11-03 Netapp, Inc. System and method for symmetric triple parity for failing storage devices
US7080278B1 (en) 2002-03-08 2006-07-18 Network Appliance, Inc. Technique for correcting multiple storage device failures in a storage array
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
US7539991B2 (en) * 2002-03-21 2009-05-26 Netapp, Inc. Method and apparatus for decomposing I/O tasks 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
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
US7185144B2 (en) * 2003-11-24 2007-02-27 Network Appliance, Inc. Semi-static distribution technique
US7111147B1 (en) 2003-03-21 2006-09-19 Network Appliance, Inc. Location-independent RAID group virtual block management
US7424637B1 (en) 2003-03-21 2008-09-09 Networks Appliance, Inc. Technique for managing addition of disks to a volume of a storage system
US7664913B2 (en) * 2003-03-21 2010-02-16 Netapp, Inc. Query-based spares management technique
US7143235B1 (en) 2003-03-21 2006-11-28 Network Appliance, Inc. Proposed configuration management behaviors in a raid subsystem
US7328364B1 (en) 2003-03-21 2008-02-05 Network Appliance, Inc. Technique for coherent suspension of I/O operations in a RAID subsystem
US7275179B1 (en) 2003-04-24 2007-09-25 Network Appliance, Inc. System and method for reducing unrecoverable media errors in a disk subsystem
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
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
US7647451B1 (en) 2003-11-24 2010-01-12 Netapp, Inc. Data placement technique for striping data containers across volumes of a storage system cluster
US8108429B2 (en) * 2004-05-07 2012-01-31 Quest Software, Inc. System for moving real-time data events across a plurality of devices in a network for simultaneous data protection, replication, and access services
US7565661B2 (en) 2004-05-10 2009-07-21 Siew Yong Sim-Tang Method and system for real-time event journaling to provide enterprise data services
US7680834B1 (en) * 2004-06-08 2010-03-16 Bakbone Software, Inc. Method and system for no downtime resychronization for real-time, continuous data protection
US7681104B1 (en) * 2004-08-09 2010-03-16 Bakbone Software, Inc. Method for erasure coding data across a plurality of data stores in a network
US7681105B1 (en) * 2004-08-09 2010-03-16 Bakbone Software, Inc. Method for lock-free clustered erasure coding and recovery of data across a plurality of data stores in a network
US7979404B2 (en) 2004-09-17 2011-07-12 Quest Software, Inc. Extracting data changes and storing data history to allow for instantaneous access to and reconstruction of any point-in-time data
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
US7904913B2 (en) * 2004-11-02 2011-03-08 Bakbone Software, Inc. Management interface for a system that provides automated, real-time, continuous data protection
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
US7779294B2 (en) * 2005-04-15 2010-08-17 Intel Corporation Power-safe disk storage apparatus, systems, and methods
US7788521B1 (en) 2005-07-20 2010-08-31 Bakbone Software, Inc. Method and system for virtual on-demand recovery for real-time, continuous data protection
US7689602B1 (en) * 2005-07-20 2010-03-30 Bakbone Software, Inc. Method of creating hierarchical indices for a distributed object system
US8560503B1 (en) 2006-01-26 2013-10-15 Netapp, Inc. Content addressable storage system
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
US8131723B2 (en) 2007-03-30 2012-03-06 Quest Software, Inc. Recovering a file system to any point-in-time in the past with guaranteed structure, content consistency and integrity
US8364648B1 (en) 2007-04-09 2013-01-29 Quest Software, Inc. Recovering a database to any point-in-time in the past with guaranteed data consistency
US8209587B1 (en) 2007-04-12 2012-06-26 Netapp, Inc. System and method for eliminating zeroing of disk drives in RAID arrays
US8898536B2 (en) * 2007-04-27 2014-11-25 Netapp, Inc. Multi-core engine for detecting bit errors
US7840837B2 (en) 2007-04-27 2010-11-23 Netapp, Inc. System and method for protecting memory during system initialization
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
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
CN102069259B (zh) * 2009-11-23 2012-08-22 常州铭赛机器人科技有限公司 自动焊锡机器人的烙铁头机构
JP5598124B2 (ja) * 2010-07-09 2014-10-01 日本電気株式会社 データ記録再生装置、データ記録方法、及び、データ記録プログラム
US8572441B2 (en) * 2011-08-05 2013-10-29 Oracle International Corporation Maximizing encodings of version control bits for memory corruption detection
US8839028B1 (en) * 2011-12-23 2014-09-16 Emc Corporation Managing data availability in storage systems
US20130198585A1 (en) * 2012-02-01 2013-08-01 Xyratex Technology Limited Method of, and apparatus for, improved data integrity
US9043559B2 (en) 2012-10-23 2015-05-26 Oracle International Corporation Block memory engine with memory corruption detection
US9672298B2 (en) 2014-05-01 2017-06-06 Oracle International Corporation Precise excecution of versioned store instructions
US9563509B2 (en) 2014-07-15 2017-02-07 Nimble Storage, Inc. Methods and systems for storing data in a redundant manner on a plurality of storage units of a storage system
US9195593B1 (en) 2014-09-27 2015-11-24 Oracle International Corporation Hardware assisted object memory migration

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4092732A (en) * 1977-05-31 1978-05-30 International Business Machines Corporation System for recovering data stored in failed memory unit
US4761785B1 (en) * 1986-06-12 1996-03-12 Ibm Parity spreading to enhance storage access
US5148432A (en) * 1988-11-14 1992-09-15 Array Technology Corporation Arrayed disk drive system and method
US5101492A (en) * 1989-11-03 1992-03-31 Compaq Computer Corporation Data redundancy and recovery protection
US5072378A (en) * 1989-12-18 1991-12-10 Storage Technology Corporation Direct access storage device with independently stored parity
JPH0731582B2 (ja) * 1990-06-21 1995-04-10 インターナショナル・ビジネス・マシーンズ・コーポレイション パリティ保護データを回復するための方法および装置

Also Published As

Publication number Publication date
EP0559487A3 (en) 1995-03-29
CA2089834A1 (en) 1993-09-07
AU653671B2 (en) 1994-10-06
DE69323225T2 (de) 1999-11-25
AU3303293A (en) 1993-09-09
IL104743A0 (en) 1993-06-10
JP3226370B2 (ja) 2001-11-05
EP0559487B1 (en) 1999-01-27
DE69323225D1 (de) 1999-03-11
US5305326A (en) 1994-04-19
JPH0612192A (ja) 1994-01-21
EP0559487A2 (en) 1993-09-08

Similar Documents

Publication Publication Date Title
US5305326A (en) High availability disk arrays
CA2089836C (en) High availability disk arrays
EP1019820B1 (en) Validation system for maintaining parity integrity in a disk array
JP2959901B2 (ja) 記憶装置の冗長アレイおよびオンライン再構成方法
EP0492808B1 (en) On-line restoration of redundancy information in a redundant array system
US5790773A (en) Method and apparatus for generating snapshot copies for data backup in a raid subsystem
US6990611B2 (en) Recovering data from arrays of storage devices after certain failures
US5379417A (en) System and method for ensuring write data integrity in a redundant array data storage system
US5488701A (en) In log sparing for log structured arrays
US6269453B1 (en) Method for reorganizing the data on a RAID-4 or RAID-5 array in the absence of one disk
US6243827B1 (en) Multiple-channel failure detection in raid systems
US6397347B1 (en) Disk array apparatus capable of dealing with an abnormality occurring in one of disk units without delaying operation of the apparatus
US6233696B1 (en) Data verification and repair in redundant storage systems
EP0936534A2 (en) Recording device
EP0768605A2 (en) Reconstructing data blocks in a RAID array data storage system having storage device metadata and RAIDset metada
US7562281B2 (en) Autonomic parity exchange
JP2000207136A (ja) 複数ドライブ故障トレラントｒａｉｄアルゴリズム
US6389511B1 (en) On-line data verification and repair in redundant storage system
US20030204774A1 (en) Method for reducing data/parity inconsistencies due to a storage controller failure
EP0559488B1 (en) Handling data in a system having a processor for controlling access to a plurality of data storage disks
EP0985173B1 (en) Method of tracking incomplete writes in a disk array, and disk storage system which performs such method
JP2005166016A (ja) ディスクアレイ装置

Legal Events

Date Code Title Description
KB Patent renewed
RH1 Patent not in force