DE69031443D1 - Verfahren und Anordnung zur Steuerung von Schattenspeichern - Google Patents
Verfahren und Anordnung zur Steuerung von SchattenspeichernInfo
- Publication number
- DE69031443D1 DE69031443D1 DE69031443T DE69031443T DE69031443D1 DE 69031443 D1 DE69031443 D1 DE 69031443D1 DE 69031443 T DE69031443 T DE 69031443T DE 69031443 T DE69031443 T DE 69031443T DE 69031443 D1 DE69031443 D1 DE 69031443D1
- Authority
- DE
- Germany
- Prior art keywords
- data
- written
- locations
- log
- sources
- 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 - Fee Related
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
- G06F11/2082—Data synchronisation
-
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US37425189A | 1989-06-30 | 1989-06-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69031443D1 true DE69031443D1 (de) | 1997-10-23 |
DE69031443T2 DE69031443T2 (de) | 1998-04-23 |
Family
ID=23475942
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69031443T Expired - Fee Related DE69031443T2 (de) | 1989-06-30 | 1990-06-22 | Verfahren und Anordnung zur Steuerung von Schattenspeichern |
Country Status (8)
Country | Link |
---|---|
US (1) | US5546536A (de) |
EP (1) | EP0405859B1 (de) |
JP (1) | JPH07111689B2 (de) |
AT (1) | ATE158424T1 (de) |
AU (1) | AU622333B2 (de) |
CA (1) | CA2020269A1 (de) |
DE (1) | DE69031443T2 (de) |
TW (1) | TW285727B (de) |
Families Citing this family (71)
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---|---|---|---|---|
JP2778786B2 (ja) * | 1990-03-02 | 1998-07-23 | 富士通株式会社 | データ更新・復元処理方式 |
US5551033A (en) * | 1991-05-17 | 1996-08-27 | Zenith Data Systems Corporation | Apparatus for maintaining one interrupt mask register in conformity with another in a manner invisible to an executing program |
JP3243919B2 (ja) * | 1994-02-23 | 2002-01-07 | 三菱電機株式会社 | ディスク装置、および、このディスク装置を使用したfaコントローラ |
DE69510251T2 (de) * | 1994-02-28 | 1999-11-25 | Canon Kk | Informationsverarbeitungsverfahren und -vorrichtung |
JP3136258B2 (ja) * | 1995-09-27 | 2001-02-19 | 三菱電機株式会社 | ディスク更新ログ記録方式 |
US5862318A (en) * | 1995-10-26 | 1999-01-19 | Microsoft Corporation | System for generating a gapless series of identity values |
US5953742A (en) * | 1996-07-01 | 1999-09-14 | Sun Microsystems, Inc. | Memory management in fault tolerant computer systems utilizing a first and second recording mechanism and a reintegration mechanism |
JP3671595B2 (ja) * | 1997-04-01 | 2005-07-13 | 株式会社日立製作所 | 複合計算機システムおよび複合i/oシステム |
US5951695A (en) * | 1997-07-25 | 1999-09-14 | Hewlett-Packard Company | Fast database failover |
US6192460B1 (en) | 1997-12-16 | 2001-02-20 | Compaq Computer Corporation | Method and apparatus for accessing data in a shadow set after a failed data operation |
US6170063B1 (en) * | 1998-03-07 | 2001-01-02 | Hewlett-Packard Company | Method for performing atomic, concurrent read and write operations on multiple storage devices |
JP4689137B2 (ja) * | 2001-08-08 | 2011-05-25 | 株式会社日立製作所 | リモートコピー制御方法、及びストレージシステム |
US6128699A (en) * | 1998-10-27 | 2000-10-03 | Hewlett-Packard Company | Method for providing read/write access while copying data between shared storage devices |
US6341317B1 (en) * | 1998-12-30 | 2002-01-22 | Emc Corporation | Method and apparatus for managing a log of information in a computer system including an intelligent storage system |
US6415300B1 (en) | 1999-07-06 | 2002-07-02 | Syncsort Incorporated | Method of performing a high-performance backup which gains efficiency by reading input file blocks sequentially |
US6408314B1 (en) | 1999-07-06 | 2002-06-18 | Synscort Incorporated | Method of performing a high-performance sort which gains efficiency by reading input file blocks sequentially |
US6671705B1 (en) * | 1999-08-17 | 2003-12-30 | Emc Corporation | Remote mirroring system, device, and method |
US6684294B1 (en) * | 2000-03-31 | 2004-01-27 | Intel Corporation | Using an access log for disk drive transactions |
DE10053016A1 (de) * | 2000-10-17 | 2002-04-25 | Libelle Informatik Gmbh | Vorrichtung und Verfahren zur Datenspiegelung |
IL139628A0 (en) * | 2000-11-12 | 2002-02-10 | Eci Telecom Ltd | Data mirroring restoration in a distributed system |
US6823349B1 (en) * | 2001-09-21 | 2004-11-23 | Emc Corporation | Method and system for establishing, maintaining, and using a persistent fracture log |
US6587536B1 (en) * | 2002-03-18 | 2003-07-01 | Holtec International, Inc. | Method and apparatus for maximizing radiation shielding during cask transfer procedures |
US6928513B2 (en) * | 2002-03-26 | 2005-08-09 | Hewlett-Packard Development Company, L.P. | System and method for managing data logging memory in a storage area network |
US6993635B1 (en) * | 2002-03-29 | 2006-01-31 | Intransa, Inc. | Synchronizing a distributed mirror |
US7171396B2 (en) * | 2002-04-04 | 2007-01-30 | Hewlett-Packard Development Company, L.P. | Method and program product for specifying the different data access route for the first data set includes storing an indication of the different access for the first data set providing alternative data access routes to a data storage |
GB0227786D0 (en) * | 2002-11-29 | 2003-01-08 | Ibm | Improved remote copy synchronization in disaster recovery computer systems |
US7809762B1 (en) * | 2003-07-11 | 2010-10-05 | Bmc Software, Inc. | Outage-less database change operation |
US7529782B2 (en) | 2003-11-13 | 2009-05-05 | Commvault Systems, Inc. | System and method for performing a snapshot and for restoring data |
US7137033B2 (en) * | 2003-11-20 | 2006-11-14 | International Business Machines Corporation | Method, system, and program for synchronizing subtasks using sequence numbers |
US7412577B2 (en) * | 2004-02-05 | 2008-08-12 | International Business Machines Corporation | Shared data mirroring apparatus, method, and system |
US7130971B2 (en) * | 2004-03-30 | 2006-10-31 | Hitachi, Ltd. | Assuring genuineness of data stored on a storage device |
US7809898B1 (en) * | 2004-05-18 | 2010-10-05 | Symantec Operating Corporation | Detecting and repairing inconsistencies in storage mirrors |
US7360111B2 (en) * | 2004-06-29 | 2008-04-15 | Microsoft Corporation | Lossless recovery for computer systems with remotely dependent data recovery |
US7472129B2 (en) * | 2004-06-29 | 2008-12-30 | Microsoft Corporation | Lossless recovery for computer systems with map assisted state transfer |
US7606844B2 (en) | 2005-12-19 | 2009-10-20 | Commvault Systems, Inc. | System and method for performing replication copy storage operations |
US7661028B2 (en) | 2005-12-19 | 2010-02-09 | Commvault Systems, Inc. | Rolling cache configuration for a data replication system |
US7651593B2 (en) | 2005-12-19 | 2010-01-26 | Commvault Systems, Inc. | Systems and methods for performing data replication |
US7617262B2 (en) | 2005-12-19 | 2009-11-10 | Commvault Systems, Inc. | Systems and methods for monitoring application data in a data replication system |
US8655850B2 (en) | 2005-12-19 | 2014-02-18 | Commvault Systems, Inc. | Systems and methods for resynchronizing information |
US8726242B2 (en) * | 2006-07-27 | 2014-05-13 | Commvault Systems, Inc. | Systems and methods for continuous data replication |
US8290808B2 (en) | 2007-03-09 | 2012-10-16 | Commvault Systems, Inc. | System and method for automating customer-validated statement of work for a data storage environment |
US8204859B2 (en) | 2008-12-10 | 2012-06-19 | Commvault Systems, Inc. | Systems and methods for managing replicated database data |
US9495382B2 (en) | 2008-12-10 | 2016-11-15 | Commvault Systems, Inc. | Systems and methods for performing discrete data replication |
US8095828B1 (en) * | 2009-08-31 | 2012-01-10 | Symantec Corporation | Using a data storage system for cluster I/O failure determination |
US8504517B2 (en) | 2010-03-29 | 2013-08-06 | Commvault Systems, Inc. | Systems and methods for selective data replication |
US8725698B2 (en) | 2010-03-30 | 2014-05-13 | Commvault Systems, Inc. | Stub file prioritization in a data replication system |
US8504515B2 (en) | 2010-03-30 | 2013-08-06 | Commvault Systems, Inc. | Stubbing systems and methods in a data replication environment |
US8352422B2 (en) | 2010-03-30 | 2013-01-08 | Commvault Systems, Inc. | Data restore systems and methods in a replication environment |
US8489656B2 (en) | 2010-05-28 | 2013-07-16 | Commvault Systems, Inc. | Systems and methods for performing data replication |
US9298715B2 (en) | 2012-03-07 | 2016-03-29 | Commvault Systems, Inc. | Data storage system utilizing proxy device for storage operations |
US9471578B2 (en) | 2012-03-07 | 2016-10-18 | Commvault Systems, Inc. | Data storage system utilizing proxy device for storage operations |
US9342537B2 (en) | 2012-04-23 | 2016-05-17 | Commvault Systems, Inc. | Integrated snapshot interface for a data storage system |
US8862642B1 (en) | 2012-06-29 | 2014-10-14 | Emc Corporation | Endurant cache |
US9058326B1 (en) * | 2012-06-29 | 2015-06-16 | Emc Corporation | Recovery and flush of endurant cache |
US9430491B2 (en) | 2013-01-11 | 2016-08-30 | Commvault Systems, Inc. | Request-based data synchronization management |
US9886346B2 (en) | 2013-01-11 | 2018-02-06 | Commvault Systems, Inc. | Single snapshot for multiple agents |
US9753812B2 (en) | 2014-01-24 | 2017-09-05 | Commvault Systems, Inc. | Generating mapping information for single snapshot for multiple applications |
US9632874B2 (en) | 2014-01-24 | 2017-04-25 | Commvault Systems, Inc. | Database application backup in single snapshot for multiple applications |
US9495251B2 (en) | 2014-01-24 | 2016-11-15 | Commvault Systems, Inc. | Snapshot readiness checking and reporting |
US9639426B2 (en) | 2014-01-24 | 2017-05-02 | Commvault Systems, Inc. | Single snapshot for multiple applications |
US9774672B2 (en) | 2014-09-03 | 2017-09-26 | Commvault Systems, Inc. | Consolidated processing of storage-array commands by a snapshot-control media agent |
US10042716B2 (en) | 2014-09-03 | 2018-08-07 | Commvault Systems, Inc. | Consolidated processing of storage-array commands using a forwarder media agent in conjunction with a snapshot-control media agent |
US9648105B2 (en) | 2014-11-14 | 2017-05-09 | Commvault Systems, Inc. | Unified snapshot storage management, using an enhanced storage manager and enhanced media agents |
US9448731B2 (en) | 2014-11-14 | 2016-09-20 | Commvault Systems, Inc. | Unified snapshot storage management |
US10503753B2 (en) | 2016-03-10 | 2019-12-10 | Commvault Systems, Inc. | Snapshot replication operations based on incremental block change tracking |
GB2549737B (en) * | 2016-04-26 | 2019-05-08 | Advanced Risc Mach Ltd | An apparatus and method for managing address collisions when performing vector operations |
US10732885B2 (en) | 2018-02-14 | 2020-08-04 | Commvault Systems, Inc. | Block-level live browsing and private writable snapshots using an ISCSI server |
US11055184B2 (en) | 2018-12-19 | 2021-07-06 | Vmware, Inc. | In-place garbage collection of a sharded, replicated distributed state machine based on supersedable operations |
US10877881B2 (en) * | 2019-01-11 | 2020-12-29 | Vmware, Inc. | In-place garbage collection of a sharded, replicated distributed state machine based on mergeable operations |
US11042318B2 (en) | 2019-07-29 | 2021-06-22 | Commvault Systems, Inc. | Block-level data replication |
US11809285B2 (en) | 2022-02-09 | 2023-11-07 | Commvault Systems, Inc. | Protecting a management database of a data storage management system to meet a recovery point objective (RPO) |
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US3544777A (en) * | 1967-11-06 | 1970-12-01 | Trw Inc | Two memory self-correcting system |
US3668644A (en) * | 1970-02-09 | 1972-06-06 | Burroughs Corp | Failsafe memory system |
US4199810A (en) * | 1977-01-07 | 1980-04-22 | Rockwell International Corporation | Radiation hardened register file |
US4189781A (en) * | 1977-01-25 | 1980-02-19 | International Business Machines Corporation | Segmented storage logging and controlling |
JPS5637883A (en) * | 1979-09-04 | 1981-04-11 | Fanuc Ltd | Information rewrite system |
US4467421A (en) * | 1979-10-18 | 1984-08-21 | Storage Technology Corporation | Virtual storage system and method |
JPS607818B2 (ja) * | 1980-04-28 | 1985-02-27 | 横河電機株式会社 | フアイルのバツクアツプ方法 |
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DE3208573C2 (de) * | 1982-03-10 | 1985-06-27 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | 2 aus 3-Auswahleinrichtung für ein 3-Rechnersystem |
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JPS59165162A (ja) * | 1983-03-11 | 1984-09-18 | インタ−ナシヨナル ビジネス マシ−ンズ コ−ポレ−シヨン | ボリューム回復方法 |
US4602368A (en) * | 1983-04-15 | 1986-07-22 | Honeywell Information Systems Inc. | Dual validity bit arrays |
JPS59201297A (ja) * | 1983-04-28 | 1984-11-14 | Nec Corp | 情報検証方式 |
US4600990A (en) * | 1983-05-16 | 1986-07-15 | Data General Corporation | Apparatus for suspending a reserve operation in a disk drive |
US4584681A (en) * | 1983-09-02 | 1986-04-22 | International Business Machines Corporation | Memory correction scheme using spare arrays |
US4608687A (en) * | 1983-09-13 | 1986-08-26 | International Business Machines Corporation | Bit steering apparatus and method for correcting errors in stored data, storing the address of the corrected data and using the address to maintain a correct data condition |
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JPS60156150A (ja) * | 1984-01-25 | 1985-08-16 | Hitachi Ltd | 計算機間フアイル共有方式 |
US4755928A (en) * | 1984-03-05 | 1988-07-05 | Storage Technology Corporation | Outboard back-up and recovery system with transfer of randomly accessible data sets between cache and host and cache and tape simultaneously |
US4916605A (en) * | 1984-03-27 | 1990-04-10 | International Business Machines Corporation | Fast write operations |
US4617475A (en) * | 1984-03-30 | 1986-10-14 | Trilogy Computer Development Partners, Ltd. | Wired logic voting circuit |
US4959774A (en) * | 1984-07-06 | 1990-09-25 | Ampex Corporation | Shadow memory system for storing variable backup blocks in consecutive time periods |
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JPS61264599A (ja) * | 1985-05-16 | 1986-11-22 | Fujitsu Ltd | 半導体記憶装置 |
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US4814971A (en) * | 1985-09-11 | 1989-03-21 | Texas Instruments Incorporated | Virtual memory recovery system using persistent roots for selective garbage collection and sibling page timestamping for defining checkpoint state |
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JPS62197858A (ja) * | 1986-02-26 | 1987-09-01 | Hitachi Ltd | システム間デ−タベ−ス共用方式 |
SE454730B (sv) * | 1986-09-19 | 1988-05-24 | Asea Ab | Forfarande och datorutrustning for stotfri omkoppling av funktionen fran aktiva enheter till beredskapsenheter i en centralenhet |
EP0303856B1 (de) * | 1987-08-20 | 1995-04-05 | International Business Machines Corporation | Verfahren und Vorrichtung zur Instandhaltung von Duplexpaarverteilten Geräten mittels einer Doppelkopiefunktion |
JP2924905B2 (ja) * | 1988-03-25 | 1999-07-26 | エヌシーアール インターナショナル インコーポレイテッド | フアイル・バツクアツプ・システム |
KR900005300A (ko) * | 1988-09-13 | 1990-04-13 | 윌슨 디.파아고 | 핫 백업 파일 서버 시스템 |
US5089958A (en) * | 1989-01-23 | 1992-02-18 | Vortex Systems, Inc. | Fault tolerant computer backup system |
-
1990
- 1990-06-22 DE DE69031443T patent/DE69031443T2/de not_active Expired - Fee Related
- 1990-06-22 AT AT90306856T patent/ATE158424T1/de not_active IP Right Cessation
- 1990-06-22 EP EP90306856A patent/EP0405859B1/de not_active Expired - Lifetime
- 1990-06-28 JP JP2171307A patent/JPH07111689B2/ja not_active Expired - Lifetime
- 1990-06-29 CA CA002020269A patent/CA2020269A1/en not_active Abandoned
- 1990-06-29 AU AU57954/90A patent/AU622333B2/en not_active Ceased
- 1990-11-02 TW TW079109287A patent/TW285727B/zh active
-
1995
- 1995-03-23 US US08/409,905 patent/US5546536A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0405859A3 (en) | 1991-12-04 |
ATE158424T1 (de) | 1997-10-15 |
DE69031443T2 (de) | 1998-04-23 |
AU5795490A (en) | 1991-01-03 |
EP0405859A2 (de) | 1991-01-02 |
TW285727B (de) | 1996-09-11 |
CA2020269A1 (en) | 1990-12-31 |
JPH03135638A (ja) | 1991-06-10 |
JPH07111689B2 (ja) | 1995-11-29 |
EP0405859B1 (de) | 1997-09-17 |
US5546536A (en) | 1996-08-13 |
AU622333B2 (en) | 1992-04-02 |
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