WO2006014573A3 - Systems and methods for providing distributed cache coherence - Google Patents

Systems and methods for providing distributed cache coherence Download PDF

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Publication number
WO2006014573A3
WO2006014573A3 PCT/US2005/024203 US2005024203W WO2006014573A3 WO 2006014573 A3 WO2006014573 A3 WO 2006014573A3 US 2005024203 W US2005024203 W US 2005024203W WO 2006014573 A3 WO2006014573 A3 WO 2006014573A3
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WO
WIPO (PCT)
Prior art keywords
directory
data
access
ownership
node
Prior art date
Application number
PCT/US2005/024203
Other languages
French (fr)
Other versions
WO2006014573A2 (en
Inventor
Ron Unrau
Steven Bromling
Wayne Karpoff
Original Assignee
Yotta Yotta Inc
Ron Unrau
Steven Bromling
Wayne Karpoff
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 Yotta Yotta Inc, Ron Unrau, Steven Bromling, Wayne Karpoff filed Critical Yotta Yotta Inc
Priority to JP2007520522A priority Critical patent/JP2008506195A/en
Priority to CA002572616A priority patent/CA2572616A1/en
Priority to EP05767801A priority patent/EP1782244A4/en
Publication of WO2006014573A2 publication Critical patent/WO2006014573A2/en
Publication of WO2006014573A3 publication Critical patent/WO2006014573A3/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/535—Tracking the activity of the user
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/56—Provisioning of proxy services
    • H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/40—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection

Abstract

A plurality of access nodes sharing access to data on a storage network implement a directory based cache ownership scheme. One node, designated as a global coordinator, maintains a directory (e.g., table or other data structure) storing information about I/O operations by the access nodes. The other nodes send requests to the global coordinator when an I/O operation is to be performed on identified data. Ownership of that data in the directory is given to the first requesting node. Ownership may transfer to another node if the directory entry is unused or quiescent. The distributed directory-based cache coherency allows for reducing bandwidth requirements between geographically separated access nodes by allowing localized (cached) access to remote data.
PCT/US2005/024203 2004-07-07 2005-07-07 Systems and methods for providing distributed cache coherence WO2006014573A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2007520522A JP2008506195A (en) 2004-07-07 2005-07-07 System and method for providing distributed cache coherence
CA002572616A CA2572616A1 (en) 2004-07-07 2005-07-07 Systems and methods for providing distributed cache coherence
EP05767801A EP1782244A4 (en) 2004-07-07 2005-07-07 Systems and methods for providing distributed cache coherence

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US58636404P 2004-07-07 2004-07-07
US60/586,364 2004-07-07

Publications (2)

Publication Number Publication Date
WO2006014573A2 WO2006014573A2 (en) 2006-02-09
WO2006014573A3 true WO2006014573A3 (en) 2008-03-27

Family

ID=35787662

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/024203 WO2006014573A2 (en) 2004-07-07 2005-07-07 Systems and methods for providing distributed cache coherence

Country Status (5)

Country Link
US (1) US7975018B2 (en)
EP (1) EP1782244A4 (en)
JP (1) JP2008506195A (en)
CA (1) CA2572616A1 (en)
WO (1) WO2006014573A2 (en)

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