WO2006033961A3 - Method and system for data reduction - Google Patents

Method and system for data reduction Download PDF

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Publication number
WO2006033961A3
WO2006033961A3 PCT/US2005/032958 US2005032958W WO2006033961A3 WO 2006033961 A3 WO2006033961 A3 WO 2006033961A3 US 2005032958 W US2005032958 W US 2005032958W WO 2006033961 A3 WO2006033961 A3 WO 2006033961A3
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WO
WIPO (PCT)
Prior art keywords
data
application
delta
time
aware
Prior art date
Application number
PCT/US2005/032958
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French (fr)
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WO2006033961A2 (en
Inventor
Siew Yong Sim-Tang
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Asempra Technologies Inc
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Publication date
Application filed by Asempra Technologies Inc filed Critical Asempra Technologies Inc
Publication of WO2006033961A2 publication Critical patent/WO2006033961A2/en
Publication of WO2006033961A3 publication Critical patent/WO2006033961A3/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/10—File systems; File servers
    • G06F16/17—Details of further file system functions
    • G06F16/174—Redundancy elimination performed by the file system

Abstract

A “forward” delta data management technique uses a “sparse” index associated with a delta file to achieve both delta management efficiency and to eliminate read latency while accessing history data. The invention may be implemented and advantageously in a data management system that provides real-time data services to data sources associated with a set of application host servers. To facilitate a given data service, a host driver embedded in an application server connects an application and its data to a cluster. The host driver captures real-time data transactions, preferably in the form of an event journal that is provided to the data management. In particular, the driver functions to translate traditional file/database/block I/O into a continuous, application-aware, output data stream. In an illustrative embodiment, a given application aware data stream is processed through a multi-stage data reduction process to produce a compact data representation from which an “any point-in-time” reconstruction of the original data can be made.
PCT/US2005/032958 2004-09-17 2005-09-15 Method and system for data reduction WO2006033961A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/943,541 US7979404B2 (en) 2004-09-17 2004-09-17 Extracting data changes and storing data history to allow for instantaneous access to and reconstruction of any point-in-time data
US10/943,541 2004-09-17

Publications (2)

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WO2006033961A2 WO2006033961A2 (en) 2006-03-30
WO2006033961A3 true WO2006033961A3 (en) 2009-04-16

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PCT/US2005/032958 WO2006033961A2 (en) 2004-09-17 2005-09-15 Method and system for data reduction

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US (3) US7979404B2 (en)
WO (1) WO2006033961A2 (en)

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