GB2434894A8 - Restoring backed up data to a host system from local and remote data storage units - Google Patents

Restoring backed up data to a host system from local and remote data storage units

Info

Publication number
GB2434894A8
GB2434894A8 GB0702669A GB0702669A GB2434894A8 GB 2434894 A8 GB2434894 A8 GB 2434894A8 GB 0702669 A GB0702669 A GB 0702669A GB 0702669 A GB0702669 A GB 0702669A GB 2434894 A8 GB2434894 A8 GB 2434894A8
Authority
GB
United Kingdom
Prior art keywords
local
host system
storage units
data storage
data
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.)
Granted
Application number
GB0702669A
Other versions
GB2434894A (en
GB2434894B (en
GB0702669D0 (en
GB2434894B8 (en
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
Priority claimed from US10/955,470 external-priority patent/US8078813B2/en
Priority claimed from US11/050,551 external-priority patent/US20060069890A1/en
Application filed filed Critical
Publication of GB0702669D0 publication Critical patent/GB0702669D0/en
Publication of GB2434894A publication Critical patent/GB2434894A/en
Publication of GB2434894B publication Critical patent/GB2434894B/en
Application granted granted Critical
Publication of GB2434894B8 publication Critical patent/GB2434894B8/en
Publication of GB2434894A8 publication Critical patent/GB2434894A8/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G06F11/2058—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 more than 2 mirrored copies
    • 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
    • G06F11/2069—Management of state, configuration or failover
    • 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
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/27—Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
    • G06F16/273—Asynchronous replication or reconciliation
    • 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
    • G06F2201/855—Details of asynchronous mirroring using a journal to transfer not-yet-mirrored changes
GB0702669A 2004-09-30 2005-09-30 Triangular asynchronous replication. Active GB2434894B8 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US10/955,470 US8078813B2 (en) 2004-09-30 2004-09-30 Triangular asynchronous replication
US10/955,142 US8185708B2 (en) 2004-09-30 2004-09-30 Host implementation of triangular asynchronous replication
US11/050,551 US20060069890A1 (en) 2004-09-30 2005-02-03 Triangular asynchronous replication with minimal synchronous storage
GB0519952A GB2418754B (en) 2004-09-30 2005-09-30 Triangular asynchronous replication

Publications (5)

Publication Number Publication Date
GB0702669D0 GB0702669D0 (en) 2007-03-21
GB2434894A GB2434894A (en) 2007-08-08
GB2434894B GB2434894B (en) 2008-02-13
GB2434894B8 GB2434894B8 (en) 2008-04-16
GB2434894A8 true GB2434894A8 (en) 2008-04-16

Family

ID=35395065

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0702668A Active GB2434893B8 (en) 2004-09-30 2005-09-30 Triangular Asynchronous Replication.
GB0702669A Active GB2434894B8 (en) 2004-09-30 2005-09-30 Triangular asynchronous replication.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0702668A Active GB2434893B8 (en) 2004-09-30 2005-09-30 Triangular Asynchronous Replication.

Country Status (3)

Country Link
JP (1) JP2006107450A (en)
DE (1) DE102005036291B9 (en)
GB (2) GB2434893B8 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4916420B2 (en) 2007-11-16 2012-04-11 株式会社日立製作所 Storage system and remote copy control method

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5206939A (en) 1990-09-24 1993-04-27 Emc Corporation System and method for disk mapping and data retrieval
US5544347A (en) * 1990-09-24 1996-08-06 Emc Corporation Data storage system controlled remote data mirroring with respectively maintained data indices
US5381539A (en) 1992-06-04 1995-01-10 Emc Corporation System and method for dynamically controlling cache management
US5845147A (en) 1996-03-19 1998-12-01 Emc Corporation Single lock command for an I/O storage system that performs both locking and I/O data operation
US5857208A (en) 1996-05-31 1999-01-05 Emc Corporation Method and apparatus for performing point in time backup operation in a computer system
US5778394A (en) 1996-12-23 1998-07-07 Emc Corporation Space reclamation system and method for use in connection with tape logging system
JP3410010B2 (en) * 1997-12-24 2003-05-26 株式会社日立製作所 Subsystem migration method and information processing system
JP3490266B2 (en) * 1997-09-26 2004-01-26 株式会社日立製作所 Backup system and backup method using disk system and magnetic tape library device
US6145045A (en) * 1998-01-07 2000-11-07 National Semiconductor Corporation System for sending and receiving data on a Universal Serial Bus (USB) using a memory shared among a number of end points
US6366986B1 (en) 1998-06-30 2002-04-02 Emc Corporation Method and apparatus for differential backup in a computer storage system
JP4689137B2 (en) * 2001-08-08 2011-05-25 株式会社日立製作所 Remote copy control method and storage system
US6209002B1 (en) * 1999-02-17 2001-03-27 Emc Corporation Method and apparatus for cascading data through redundant data storage units
US6446175B1 (en) * 1999-07-28 2002-09-03 Storage Technology Corporation Storing and retrieving data on tape backup system located at remote storage system site
EP1158409B1 (en) * 2000-05-25 2008-05-28 Hitachi, Ltd. Storage system making possible data synchronisation confirmation at time of asynchronous remote copy
WO2002017055A1 (en) * 2000-08-18 2002-02-28 Fujitsu Limited Disk control device, disk control method, remote disk control device, and remote disk control method
US6662281B2 (en) * 2001-01-31 2003-12-09 Hewlett-Packard Development Company, L.P. Redundant backup device
FR2820849B1 (en) * 2001-02-15 2003-05-16 Cit Alcatel COMPUTER DATA STORAGE METHOD AND CORRESPONDING STORAGE DEVICE
US6594742B1 (en) 2001-05-07 2003-07-15 Emc Corporation Cache management via statistically adjusted slot aging
US7249193B1 (en) * 2001-08-28 2007-07-24 Emc Corporation SRDF assist
EP1438808A4 (en) * 2001-09-28 2007-05-23 Emc Corp Packet classification in a storage system
JP3983516B2 (en) * 2001-10-25 2007-09-26 株式会社日立製作所 Storage system
JP3730907B2 (en) * 2001-12-04 2006-01-05 日本電気株式会社 Remote data copy method between disk array devices
US6948089B2 (en) * 2002-01-10 2005-09-20 Hitachi, Ltd. Apparatus and method for multiple generation remote backup and fast restore
JP2005062928A (en) * 2003-08-11 2005-03-10 Hitachi Ltd Remote copy system using two or more sites
US8200921B2 (en) * 2004-03-12 2012-06-12 Hewlett-Packard Development Company, L.P. Data synchronization for two data mirrors with sidefiles
CN106104908B (en) 2014-03-26 2018-12-21 本田技研工业株式会社 Electric vehicle
US9654225B2 (en) 2015-09-18 2017-05-16 Elenion Technologies, Llc Optical link architecture based on wireline equalization techniques
US10224918B2 (en) 2016-12-07 2019-03-05 Infineon Technologies Americas Corp. Active gate bias driver

Also Published As

Publication number Publication date
GB2434893A (en) 2007-08-08
GB2434894A (en) 2007-08-08
GB2434893B (en) 2008-01-16
GB2434894B (en) 2008-02-13
DE102005036291B9 (en) 2019-08-29
DE102005036291B4 (en) 2019-03-07
JP2006107450A (en) 2006-04-20
DE102005036291A1 (en) 2006-04-13
GB0702669D0 (en) 2007-03-21
GB2434893A8 (en) 2008-04-16
GB2434894B8 (en) 2008-04-16
GB2434893B8 (en) 2008-04-16
GB0702668D0 (en) 2007-03-21

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