WO2002021273A3 - Self archiving log structured volume with intrinsic data protection - Google Patents

Self archiving log structured volume with intrinsic data protection Download PDF

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Publication number
WO2002021273A3
WO2002021273A3 PCT/US2001/028420 US0128420W WO0221273A3 WO 2002021273 A3 WO2002021273 A3 WO 2002021273A3 US 0128420 W US0128420 W US 0128420W WO 0221273 A3 WO0221273 A3 WO 0221273A3
Authority
WO
WIPO (PCT)
Prior art keywords
volume
log structured
self archiving
log
structured volume
Prior art date
Application number
PCT/US2001/028420
Other languages
French (fr)
Other versions
WO2002021273A2 (en
Inventor
John C Autrey
Marcia R Martin
Jon M Holdman
Original Assignee
Storage Technology 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 Storage Technology Corp filed Critical Storage Technology Corp
Priority to JP2002524820A priority Critical patent/JP2004514963A/en
Priority to EP01970815A priority patent/EP1316018A2/en
Priority to AU9077801A priority patent/AU9077801A/en
Publication of WO2002021273A2 publication Critical patent/WO2002021273A2/en
Publication of WO2002021273A3 publication Critical patent/WO2002021273A3/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
    • G06F11/1471—Saving, restoring, recovering or retrying involving logging of persistent data for recovery
    • 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
    • Y10S707/99941—Database schema or data structure
    • Y10S707/99942—Manipulating data structure, e.g. compression, compaction, compilation
    • 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
    • Y10S707/99941—Database schema or data structure
    • Y10S707/99943—Generating database or data structure, e.g. via user interface
    • 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

A data backup system for use with a server running a storage application such as a file system or database management system that writes and reads data blocks to and from a volume. The data backup system includes a self archiving log structured volume for copying blocks from the active volume while the storage application is running without contending with the storage application for access to data blocks. The self archiving log structured volume records the result of every write event in a new location in primary storage, forming a chronological log of the state changes the volume undergoes. The self archiving log structured volume is operable to record in the log the points in time (synch events) when the blocks of the self archiving log structured volume are in a consistent state with respect to the storage application. The data backup system further includes backing storage operable with the self archiving log structured volume to store the archived data blocks and synch events of the self archiving log structured volume. The self archiving log structured volume is operable to migrate inactive segments of its log to the backing storage. The self archiving log structured volume is further operable to ensure that a volume can be reconstructed from a fixed number of log segments.
PCT/US2001/028420 2000-09-08 2001-09-10 Self archiving log structured volume with intrinsic data protection WO2002021273A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2002524820A JP2004514963A (en) 2000-09-08 2001-09-10 Self-archiving log structure volume with built-in data protection
EP01970815A EP1316018A2 (en) 2000-09-08 2001-09-10 Self archiving log structured volume with intrinsic data protection
AU9077801A AU9077801A (en) 2000-09-08 2001-09-10 Self archiving log structured volume/intrinsic data protection

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/657,291 US6732125B1 (en) 2000-09-08 2000-09-08 Self archiving log structured volume with intrinsic data protection
US09/657,291 2000-09-08

Publications (2)

Publication Number Publication Date
WO2002021273A2 WO2002021273A2 (en) 2002-03-14
WO2002021273A3 true WO2002021273A3 (en) 2002-07-04

Family

ID=24636572

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/028420 WO2002021273A2 (en) 2000-09-08 2001-09-10 Self archiving log structured volume with intrinsic data protection

Country Status (5)

Country Link
US (2) US6732125B1 (en)
EP (1) EP1316018A2 (en)
JP (1) JP2004514963A (en)
AU (1) AU9077801A (en)
WO (1) WO2002021273A2 (en)

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