WO2005111802A3 - Online clone volume splitting technique - Google Patents

Online clone volume splitting technique Download PDF

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Publication number
WO2005111802A3
WO2005111802A3 PCT/US2005/013414 US2005013414W WO2005111802A3 WO 2005111802 A3 WO2005111802 A3 WO 2005111802A3 US 2005013414 W US2005013414 W US 2005013414W WO 2005111802 A3 WO2005111802 A3 WO 2005111802A3
Authority
WO
WIPO (PCT)
Prior art keywords
clone
splitting
shared
online
vvol
Prior art date
Application number
PCT/US2005/013414
Other languages
French (fr)
Other versions
WO2005111802A2 (en
Inventor
Robert L Fair
Original Assignee
Network Appliance Inc
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 Network Appliance Inc filed Critical Network Appliance Inc
Priority to EP05737672A priority Critical patent/EP1749269B1/en
Priority to AT05737672T priority patent/ATE549685T1/en
Publication of WO2005111802A2 publication Critical patent/WO2005111802A2/en
Publication of WO2005111802A3 publication Critical patent/WO2005111802A3/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

Abstract

A clone splitting technique enables efficient online splitting of blocks shared between a parent virtual volume (vvol) and a clone in accordance with a shared block splitting procedure executing on a storage system. Online splitting of shared blocks denotes allowing execution of read/write operations directed to the clone, as well as to the parent vvol, as the shared blocks are split. The clone splitting technique removes any connection between a clone and its parent vvol, thereby allowing the clone to be used as a first-class volume. Moreover, the technique removes such connection while allowing both the clone and parent vvol to remain available online and writeable (accessible) to clients during the shared block splitting procedure.
PCT/US2005/013414 2004-04-30 2005-04-21 Online clone volume splitting technique WO2005111802A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP05737672A EP1749269B1 (en) 2004-04-30 2005-04-21 Online clone volume splitting technique
AT05737672T ATE549685T1 (en) 2004-04-30 2005-04-21 ONLINE METHOD TO SEPARATE A VOLUME COPY

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/836,111 US7334094B2 (en) 2004-04-30 2004-04-30 Online clone volume splitting technique
US10/836,111 2004-04-30

Publications (2)

Publication Number Publication Date
WO2005111802A2 WO2005111802A2 (en) 2005-11-24
WO2005111802A3 true WO2005111802A3 (en) 2006-06-08

Family

ID=35188419

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/013414 WO2005111802A2 (en) 2004-04-30 2005-04-21 Online clone volume splitting technique

Country Status (4)

Country Link
US (1) US7334094B2 (en)
EP (1) EP1749269B1 (en)
AT (1) ATE549685T1 (en)
WO (1) WO2005111802A2 (en)

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Also Published As

Publication number Publication date
EP1749269A2 (en) 2007-02-07
WO2005111802A2 (en) 2005-11-24
ATE549685T1 (en) 2012-03-15
US20050246503A1 (en) 2005-11-03
US7334094B2 (en) 2008-02-19
EP1749269B1 (en) 2012-03-14

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