CA2213312A1 - Computer backup system operable with open files - Google Patents

Computer backup system operable with open files

Info

Publication number
CA2213312A1
CA2213312A1 CA002213312A CA2213312A CA2213312A1 CA 2213312 A1 CA2213312 A1 CA 2213312A1 CA 002213312 A CA002213312 A CA 002213312A CA 2213312 A CA2213312 A CA 2213312A CA 2213312 A1 CA2213312 A1 CA 2213312A1
Authority
CA
Canada
Prior art keywords
file
backup
backup program
data
backup system
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
CA002213312A
Other languages
French (fr)
Other versions
CA2213312C (en
Inventor
Peter Bryan Malcolm
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.)
Cheyenne Advanced Technology Ltd
Original Assignee
Cheyenne Advanced Technology Limited
Peter Bryan Malcolm
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 GBGB9505939.0A external-priority patent/GB9505939D0/en
Application filed by Cheyenne Advanced Technology Limited, Peter Bryan Malcolm filed Critical Cheyenne Advanced Technology Limited
Publication of CA2213312A1 publication Critical patent/CA2213312A1/en
Application granted granted Critical
Publication of CA2213312C publication Critical patent/CA2213312C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G06F11/14—Error detection or correction of the data by redundancy in operation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/52—Program synchronisation; Mutual exclusion, e.g. by means of semaphores
    • 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

Abstract

A backup program for a computer system with a hard disk maintains a record of changes made to the data in a file being backed up.
During backup both the original and update file portions or records are stored, and the backup program reads the original data while other applications read the updated data. To identify whether a read operation is initiated by the backup program or by another application, the system determines, using the stack, the source of the read request.
Alternatively it interrogates the user, process or task id. Access to the file by the backup program is guaranteed by manipulating the System File Table. It is ensured that the file is in a "good" state by delaying the start of the backup operation for a predetermined period.
CA002213312A 1995-03-23 1996-03-18 Computer backup system operable with open files Expired - Fee Related CA2213312C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB9505939.0 1995-03-23
GBGB9505939.0A GB9505939D0 (en) 1995-03-23 1995-03-23 A method of operating a computer system
US08/465,925 US5675725A (en) 1993-07-19 1995-06-06 Computer backup system operable with open files
US08/465,925 1995-06-06
PCT/GB1996/000651 WO1996029650A1 (en) 1995-03-23 1996-03-18 Computer backup system operable with open files

Publications (2)

Publication Number Publication Date
CA2213312A1 true CA2213312A1 (en) 1996-09-26
CA2213312C CA2213312C (en) 2004-05-11

Family

ID=26306735

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002213312A Expired - Fee Related CA2213312C (en) 1995-03-23 1996-03-18 Computer backup system operable with open files

Country Status (22)

Country Link
US (1) US5675725A (en)
EP (3) EP0921466B1 (en)
JP (2) JP3769019B2 (en)
KR (1) KR100413915B1 (en)
CN (2) CN1627267A (en)
AT (3) ATE193608T1 (en)
BG (1) BG63373B1 (en)
BR (1) BR9607912A (en)
CA (1) CA2213312C (en)
CZ (1) CZ294040B6 (en)
DE (3) DE69608673T2 (en)
DK (3) DK0921466T3 (en)
ES (3) ES2159916T3 (en)
GR (2) GR3034153T3 (en)
HU (1) HU224852B1 (en)
IS (1) IS4535A (en)
MX (1) MX9707260A (en)
NO (3) NO317208B1 (en)
NZ (1) NZ304065A (en)
PL (1) PL183365B1 (en)
PT (2) PT921466E (en)
WO (1) WO1996029650A1 (en)

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US5890165A (en) * 1996-03-29 1999-03-30 Emc Corporation Method and apparatus for automatic discovery of databases
US5829047A (en) * 1996-08-29 1998-10-27 Lucent Technologies Inc. Backup memory for reliable operation
US5966730A (en) * 1996-10-30 1999-10-12 Dantz Development Corporation Backup system for computer network incorporating opportunistic backup by prioritizing least recently backed up computer or computer storage medium
CA2221216A1 (en) * 1996-11-15 1998-05-15 Mark Squibb System and apparatus for merging a write event journal and an original storage to produce an updated storage using an event map
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
KR19990060338A (en) * 1997-12-31 1999-07-26 윤종용 Hard disk drive virus damage data recovery method
US6385707B1 (en) * 1998-02-24 2002-05-07 Adaptec, Inc. Method and apparatus for backing up a disk drive upon a system failure
US6088694A (en) * 1998-03-31 2000-07-11 International Business Machines Corporation Continuous availability and efficient backup for externally referenced objects
JP3440991B2 (en) * 1999-03-05 2003-08-25 日本電気株式会社 File revision management system
US6453396B1 (en) * 1999-07-14 2002-09-17 Compaq Computer Corporation System, method and computer program product for hardware assisted backup for a computer mass storage system
CN1209708C (en) * 2000-03-01 2005-07-06 电脑联合想象公司 Method and system for updating an archive of a computer file
US6453859B1 (en) 2001-01-08 2002-09-24 Borgwarner Inc. Multi-mode control system for variable camshaft timing devices
US6847983B2 (en) 2001-02-28 2005-01-25 Kiran Somalwar Application independent write monitoring method for fast backup and synchronization of open files
US6985915B2 (en) 2001-02-28 2006-01-10 Kiran Somalwar Application independent write monitoring method for fast backup and synchronization of files
JP3714184B2 (en) * 2001-03-29 2005-11-09 富士通株式会社 Copying method between data areas of storage device and storage system
ES2218311T3 (en) * 2001-06-28 2004-11-16 Siemens Aktiengesellschaft PROCEDURE FOR REDUCING THE BLOCK TIME DURING THE SAFEGUARD OF DATA FROM A SHARED DATABASE.
US7752169B2 (en) * 2002-06-04 2010-07-06 International Business Machines Corporation Method, system and program product for centrally managing computer backups
US7805401B2 (en) 2003-04-14 2010-09-28 Novell, Inc. Method and apparatus for splitting a replicated volume
US7281014B2 (en) 2003-04-14 2007-10-09 Novell, Inc. Method and apparatus for moving data between storage devices
US7222143B2 (en) * 2003-11-24 2007-05-22 Lenovo (Singapore) Pte Ltd. Safely restoring previously un-backed up data during system restore of a failing system
US7380246B2 (en) * 2003-12-15 2008-05-27 Lenovo (Singapore) Pte. Ltd. Method and system of accessing at least one target file in a computer system with an operating system with file locking implemented with byte-range locking
US20050131960A1 (en) 2003-12-15 2005-06-16 Reed Benjamin C. Method and system of accessing at least one target file in a computer system with an operating system with file locking implemented at file-open time
CN100407158C (en) * 2005-04-21 2008-07-30 中兴通讯股份有限公司 Method for accessing data file of telecommunication apparatus
JP4577242B2 (en) * 2006-03-10 2010-11-10 日本電気株式会社 Data backup system, data backup method, and operation control program thereof
US9015127B2 (en) * 2006-12-27 2015-04-21 Oracle America, Inc. File archiving system and method
US20080215639A1 (en) * 2007-01-04 2008-09-04 Imusicdrive, Llc Data Synchronization
US8874831B2 (en) 2007-06-01 2014-10-28 Netlist, Inc. Flash-DRAM hybrid memory module
US8904098B2 (en) 2007-06-01 2014-12-02 Netlist, Inc. Redundant backup using non-volatile memory
US8301833B1 (en) 2007-06-01 2012-10-30 Netlist, Inc. Non-volatile memory module
CA2687051A1 (en) * 2007-07-11 2009-01-15 Citrix Systems, Inc. Methods and systems for providing a level of access to a computing device
JP4972046B2 (en) * 2008-07-14 2012-07-11 日本電信電話株式会社 Access monitoring system and access monitoring method
CN101694636B (en) * 2009-10-21 2012-05-23 上海坚芯电子科技有限公司 Updating backup system and method for data of nonvolatile data memory
JP5587050B2 (en) * 2010-06-22 2014-09-10 キヤノン株式会社 Information processing apparatus, information processing apparatus control method, and program
US8495019B2 (en) 2011-03-08 2013-07-23 Ca, Inc. System and method for providing assured recovery and replication
US10838646B2 (en) 2011-07-28 2020-11-17 Netlist, Inc. Method and apparatus for presearching stored data
US10380022B2 (en) 2011-07-28 2019-08-13 Netlist, Inc. Hybrid memory module and system and method of operating the same
US10198350B2 (en) 2011-07-28 2019-02-05 Netlist, Inc. Memory module having volatile and non-volatile memory subsystems and method of operation
JP5619198B2 (en) * 2013-02-04 2014-11-05 株式会社フィックスターズ Information processing apparatus, information processing method, and program
US10372551B2 (en) 2013-03-15 2019-08-06 Netlist, Inc. Hybrid memory system with configurable error thresholds and failure analysis capability
US9436600B2 (en) 2013-06-11 2016-09-06 Svic No. 28 New Technology Business Investment L.L.P. Non-volatile memory storage for multi-channel memory system
US10248328B2 (en) 2013-11-07 2019-04-02 Netlist, Inc. Direct data move between DRAM and storage on a memory module
US9229821B2 (en) 2013-11-13 2016-01-05 International Business Machines Corporation Reactionary backup scheduling around meantime between failures of data origination
CN104375906B (en) * 2014-11-19 2017-06-13 天津南大通用数据技术股份有限公司 A kind of extensive Backup Data fast calibration method based on file system
CN112685222A (en) * 2019-10-17 2021-04-20 伊姆西Ip控股有限责任公司 Method, apparatus and computer program product for managing backup data

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US4686620A (en) * 1984-07-26 1987-08-11 American Telephone And Telegraph Company, At&T Bell Laboratories Database backup method
US5065354A (en) * 1988-09-16 1991-11-12 Compaq Computer Corporation Queued posted-write disk write method with improved error handling
GB2230626A (en) * 1989-04-20 1990-10-24 Croftlands Ltd Computerised database system
EP0483174B1 (en) * 1989-07-11 1995-11-22 Cheyenne Advanced Technology Limited A method of operating a data processing system
US5163148A (en) * 1989-08-11 1992-11-10 Digital Equipment Corporation File backup system for producing a backup copy of a file which may be updated during backup
EP0516900B1 (en) * 1991-06-04 1996-05-01 International Business Machines Corporation Data backup and recovery in a data processing system
CA2071346A1 (en) * 1991-10-18 1993-04-19 Claus William Mikkelsen Method and means for time zero backup copy of data
US5379398A (en) * 1992-04-20 1995-01-03 International Business Machines Corporation Method and system for concurrent access during backup copying of data
US5241669A (en) * 1992-04-20 1993-08-31 International Business Machines Corporation Method and system for sidefile status polling in a time zero backup copy process
US5241670A (en) * 1992-04-20 1993-08-31 International Business Machines Corporation Method and system for automated backup copy ordering in a time zero backup copy session

Also Published As

Publication number Publication date
PT921467E (en) 2001-12-28
EP0921467A1 (en) 1999-06-09
NZ304065A (en) 1999-02-25
BG63373B1 (en) 2001-11-30
NO973991L (en) 1997-11-24
PT921466E (en) 2002-11-29
CN1627274A (en) 2005-06-15
AU5115496A (en) 1996-10-08
ES2179424T3 (en) 2003-01-16
JP3769019B2 (en) 2006-04-19
DK0815512T3 (en) 2000-09-11
CN1627267A (en) 2005-06-15
ES2148739T3 (en) 2000-10-16
EP0921466A1 (en) 1999-06-09
DE69608673D1 (en) 2000-07-06
ES2159916T3 (en) 2001-10-16
KR19980703229A (en) 1998-10-15
HU224852B1 (en) 2006-03-28
DE69621841D1 (en) 2002-07-18
US5675725A (en) 1997-10-07
DE69608673T2 (en) 2001-01-11
ATE202645T1 (en) 2001-07-15
MX9707260A (en) 1997-12-31
ATE219262T1 (en) 2002-06-15
NO20041945L (en) 1997-11-24
CZ294040B6 (en) 2004-09-15
NO973991D0 (en) 1997-08-29
GR3036695T3 (en) 2001-12-31
JP2006099784A (en) 2006-04-13
AU695339B2 (en) 1998-08-13
DE69621841T2 (en) 2003-01-23
DE69613594T2 (en) 2002-04-25
DK0921466T3 (en) 2002-09-16
EP0921467B1 (en) 2001-06-27
CA2213312C (en) 2004-05-11
JPH11502339A (en) 1999-02-23
NO317208B1 (en) 2004-09-20
EP0815512A1 (en) 1998-01-07
NO20041944D0 (en) 2004-05-12
BR9607912A (en) 1998-06-09
ATE193608T1 (en) 2000-06-15
PL322454A1 (en) 1998-02-02
BG101864A (en) 1998-05-29
GR3034153T3 (en) 2000-11-30
WO1996029650A1 (en) 1996-09-26
EP0921466B1 (en) 2002-06-12
HUP9900368A2 (en) 1999-05-28
KR100413915B1 (en) 2004-04-29
HUP9900368A3 (en) 1999-11-29
PL183365B1 (en) 2002-06-28
IS4535A (en) 1997-07-31
EP0815512B1 (en) 2000-05-31
NO20041944L (en) 1997-11-24
CZ293097A3 (en) 1999-01-13
DE69613594D1 (en) 2001-08-02
DK0921467T3 (en) 2001-10-22

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