WO2005048124A3 - Hybrid real-time data replication - Google Patents

Hybrid real-time data replication Download PDF

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Publication number
WO2005048124A3
WO2005048124A3 PCT/US2004/036474 US2004036474W WO2005048124A3 WO 2005048124 A3 WO2005048124 A3 WO 2005048124A3 US 2004036474 W US2004036474 W US 2004036474W WO 2005048124 A3 WO2005048124 A3 WO 2005048124A3
Authority
WO
WIPO (PCT)
Prior art keywords
data
phase
attributes
time data
data replication
Prior art date
Application number
PCT/US2004/036474
Other languages
French (fr)
Other versions
WO2005048124A2 (en
Inventor
Justin Banks
Haddi Abderrahman Aba A El
Victor T Lee Jr
Paul A Sustman
Original Assignee
Constant Data 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 Constant Data Inc filed Critical Constant Data Inc
Priority to EP04800598A priority Critical patent/EP1680742A2/en
Priority to JP2006539600A priority patent/JP2007511008A/en
Publication of WO2005048124A2 publication Critical patent/WO2005048124A2/en
Publication of WO2005048124A3 publication Critical patent/WO2005048124A3/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
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
    • G06F11/2053—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where persistent mass storage functionality or persistent mass storage control functionality is redundant
    • G06F11/2056—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where persistent mass storage functionality or persistent mass storage control functionality is redundant by mirroring
    • G06F11/2071—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where persistent mass storage functionality or persistent mass storage control functionality is redundant by mirroring using a plurality of controllers
    • 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
    • G06F11/1464—Management of the backup or restore process for networked environments
    • 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
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
    • G06F11/2053—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where persistent mass storage functionality or persistent mass storage control functionality is redundant
    • G06F11/2056—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where persistent mass storage functionality or persistent mass storage control functionality is redundant by mirroring
    • G06F11/2071—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where persistent mass storage functionality or persistent mass storage control functionality is redundant by mirroring using a plurality of controllers
    • G06F11/2079—Bidirectional techniques

Abstract

Techniques are described for replicating data from one to one or more heterogeneous data processing or communication devices for the purpose of remote backup, redundancy, content distribution, communications, observations or measurements. In a first phase, the attributes of the data that are modified or created on a device or that are passing through the device are tracked and journaled in volatile or non-volatile storage in real-time. In a second phase, the attributes that match patterns pre-specified in a configuration are used to determine which data to replicate and which modifications to make the devices. In a third phase, the data is replicated. In a preferred embodiment, the described techniques comprise an application that runs on a host device or is embedded in a logic or memory device. The described invention is designed to be transparent for system redundancy and error recovery processes such as error correction, re-transmission on links, and raid configuration.
PCT/US2004/036474 2003-11-04 2004-11-03 Hybrid real-time data replication WO2005048124A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP04800598A EP1680742A2 (en) 2003-11-04 2004-11-03 Hybrid real-time data replication
JP2006539600A JP2007511008A (en) 2003-11-04 2004-11-03 Hybrid real-time data replication

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US51725303P 2003-11-04 2003-11-04
US60/517,253 2003-11-04

Publications (2)

Publication Number Publication Date
WO2005048124A2 WO2005048124A2 (en) 2005-05-26
WO2005048124A3 true WO2005048124A3 (en) 2005-11-03

Family

ID=34590146

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/036474 WO2005048124A2 (en) 2003-11-04 2004-11-03 Hybrid real-time data replication

Country Status (4)

Country Link
US (2) US7836014B2 (en)
EP (1) EP1680742A2 (en)
JP (1) JP2007511008A (en)
WO (1) WO2005048124A2 (en)

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Also Published As

Publication number Publication date
WO2005048124A2 (en) 2005-05-26
JP2007511008A (en) 2007-04-26
US7836014B2 (en) 2010-11-16
US8938419B2 (en) 2015-01-20
US20050149578A1 (en) 2005-07-07
US20110251996A1 (en) 2011-10-13
EP1680742A2 (en) 2006-07-19

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