WO2004059488A3 - Instant refresh of a data volume copy - Google Patents

Instant refresh of a data volume copy Download PDF

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Publication number
WO2004059488A3
WO2004059488A3 PCT/US2003/040220 US0340220W WO2004059488A3 WO 2004059488 A3 WO2004059488 A3 WO 2004059488A3 US 0340220 W US0340220 W US 0340220W WO 2004059488 A3 WO2004059488 A3 WO 2004059488A3
Authority
WO
WIPO (PCT)
Prior art keywords
data volume
memory
data
refresh
volume copy
Prior art date
Application number
PCT/US2003/040220
Other languages
French (fr)
Other versions
WO2004059488A2 (en
Inventor
Oleg Kiselev
John A Colgrove
Anand A Kekre
Original Assignee
Veritas Software 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 Veritas Software Corp filed Critical Veritas Software Corp
Priority to AU2003297315A priority Critical patent/AU2003297315A1/en
Publication of WO2004059488A2 publication Critical patent/WO2004059488A2/en
Publication of WO2004059488A3 publication Critical patent/WO2004059488A3/en

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
    • G06F11/14—Error detection or correction of the data by redundancy in operation
    • G06F11/1402—Saving, restoring, recovering or retrying
    • G06F11/1446—Point-in-time backing up or restoration of persistent data
    • G06F11/1458—Management of the backup or restore process
    • G06F11/1466—Management of the backup or restore process to make the backup process non-disruptive
    • 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
    • G06F11/1446—Point-in-time backing up or restoration of persistent data
    • G06F11/1448—Management of the data involved in backup or backup restore
    • G06F11/1451—Management of the data involved in backup or backup restore by selection of backup contents
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S707/00—Data processing: database and file management or data structures
    • Y10S707/99951—File or database maintenance
    • Y10S707/99952—Coherency, e.g. same view to multiple users
    • Y10S707/99953—Recoverability
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S707/00—Data processing: database and file management or data structures
    • Y10S707/99951—File or database maintenance
    • Y10S707/99952—Coherency, e.g. same view to multiple users
    • Y10S707/99955—Archiving or backup

Abstract

Disclosed is a method and apparatus for refreshing a copy of a data volume. In one embodiment of the method first and second data portions of a data volume are copied to first and second memory blocks, respectively, of a memory coupled to a computer system. First and second bits of a first map stored in memory are then set, wherein the first and second bits correspond to the first and second memory blocks, respectively. The first data portion of the data volume is modified after the first data portion is copied to the first memory block. A first bit in a second map stored in memory is set after data portion is modified. An instruction is generated to refresh the data contents of the first and second memory blocks. The first bit of the first map is cleared in response to generation of the refresh instruction.
PCT/US2003/040220 2002-12-19 2003-12-18 Instant refresh of a data volume copy WO2004059488A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003297315A AU2003297315A1 (en) 2002-12-19 2003-12-18 Instant refresh of a data volume copy

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/326,427 2002-12-19
US10/326,427 US6880053B2 (en) 2002-12-19 2002-12-19 Instant refresh of a data volume copy

Publications (2)

Publication Number Publication Date
WO2004059488A2 WO2004059488A2 (en) 2004-07-15
WO2004059488A3 true WO2004059488A3 (en) 2005-03-24

Family

ID=32594016

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/040220 WO2004059488A2 (en) 2002-12-19 2003-12-18 Instant refresh of a data volume copy

Country Status (3)

Country Link
US (2) US6880053B2 (en)
AU (1) AU2003297315A1 (en)
WO (1) WO2004059488A2 (en)

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US7290101B1 (en) 2003-12-19 2007-10-30 Symantec Corporation Using data copies for redundancy
US7409512B1 (en) * 2004-07-01 2008-08-05 Symantec Operating Corporation Method and apparatus for maintaining information that indicates valid regions of a working volume and using that information to delay volume initialization
US7313724B1 (en) 2004-07-01 2007-12-25 Symantec Operating Corporation Method and apparatus for synchronizing redundant data with a volume
US8229893B2 (en) * 2010-02-01 2012-07-24 Hitachi Data Systems Corporation Metadata management for fixed content distributed data storage
US20060182020A1 (en) * 2005-01-31 2006-08-17 Factor Michael E Point-in-time data replication method apparatus and system
US7904425B2 (en) * 2005-12-13 2011-03-08 International Business Machines Corporation Generating backup sets to a specific point in time
US7472242B1 (en) * 2006-02-14 2008-12-30 Network Appliance, Inc. Eliminating duplicate blocks during backup writes
US7788456B1 (en) 2006-02-16 2010-08-31 Network Appliance, Inc. Use of data images to allow release of unneeded data storage
US7823007B2 (en) * 2006-02-17 2010-10-26 International Business Machines Corporation Apparatus, system, and method for switching a volume address association in a point-in-time copy relationship
JP2007334709A (en) * 2006-06-16 2007-12-27 Fujitsu Ltd Storage control device, storage control program, and storage control method
US7685178B2 (en) * 2006-10-31 2010-03-23 Netapp, Inc. System and method for examining client generated content stored on a data container exported by a storage system
CN101202077B (en) * 2006-12-12 2010-12-01 英业达股份有限公司 Data protection method
CN101202078B (en) * 2006-12-12 2010-12-22 英业达股份有限公司 Data protection method
US20090031097A1 (en) * 2007-07-29 2009-01-29 Lee Nelson Creating Backups in Storage Systems
US8082406B1 (en) * 2007-09-27 2011-12-20 Symantec Corporation Techniques for reducing data storage needs using CDP/R
CN102150144B (en) * 2009-01-23 2014-12-24 Lsi公司 Method and system for dynamic storage tiering using allocate-on-write snapshots
US8856080B2 (en) * 2009-10-30 2014-10-07 Microsoft Corporation Backup using metadata virtual hard drive and differential virtual hard drive
US8788768B2 (en) 2010-09-29 2014-07-22 International Business Machines Corporation Maintaining mirror and storage system copies of volumes at multiple remote sites
US8868882B2 (en) 2011-06-08 2014-10-21 Microsoft Corporation Storage architecture for backup application
US9092449B2 (en) * 2012-10-17 2015-07-28 International Business Machines Corporation Bitmap selection for remote copying of updates
US20150074219A1 (en) * 2013-07-12 2015-03-12 Brocade Communications Systems, Inc. High availability networking using transactional memory
CN103389919B (en) * 2013-07-30 2016-09-14 浙江中控技术股份有限公司 A kind of data processing method based on redundant equipment system and device
US20160098302A1 (en) * 2014-10-07 2016-04-07 Strato Scale Ltd. Resilient post-copy live migration using eviction to shared storage in a global memory architecture

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EP0332210A2 (en) * 1988-03-11 1989-09-13 Hitachi, Ltd. Backup control method and system in data processing system
EP0566966A2 (en) * 1992-04-20 1993-10-27 International Business Machines Corporation Method and system for incremental backup copying of data
EP1091283A2 (en) * 1999-09-30 2001-04-11 Fujitsu Limited Copying method between logical disks, disk-storage system and program for the same

Also Published As

Publication number Publication date
US20040123031A1 (en) 2004-06-24
US6880053B2 (en) 2005-04-12
US20050169064A1 (en) 2005-08-04
WO2004059488A2 (en) 2004-07-15
AU2003297315A1 (en) 2004-07-22
US7337288B2 (en) 2008-02-26

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