Method for asynchronous replication of a hierarchically-indexed data store

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7984016
APP PUB NO 20080250086A1
SERIAL NO

12128467

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Importance

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Abstract

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Changes such as write operations on a replication source comprising a hierarchically-indexed file system and associated data store are tracked and aggregated over a point-in-time image replication interval and communicated to a replication target. The replication target receives the changes, conducts operations to make the changes on a target volume or portion thereof, and conducts a point-in-time image replication operation to synchronize the replication target with the replication source. In the present invention the advantages of replication techniques developed for log-structured file systems are provided to systems with conventional hierarchical file systems. The invention also facilitates maintaining point-in-time retrievable images of a volume or portion thereof on a target volume while reducing the bandwidth and processing burden associated with replication.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
SERVICENOW, INC.SANTA CLARA, CA240

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kisley, Richard Victor Tucson, US 7 246

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
6289536 Apparatus for handling incapacitated patients 15 1998
 
ORACLE INTERNATIONAL CORPORATION (2)
5806074 Configurable conflict resolution in a computer implemented distributed database 248 1996
5937414 Method and apparatus for providing database system replication in a mixed propagation environment 133 1997
 
ACRONIS INTERNATIONAL GMBH (1)
7047380 System and method for using file system snapshots for online data backup 33 2004
 
EMC IP HOLDING COMPANY LLC (2)
6324654 Computer network remote data mirroring system 263 1998
6434681 Snapshot copy facility for a data storage system permitting continued host read/write access 334 1999
 
NETAPP, INC. (3)
7010553 System and method for redirecting access to a remote mirrored snapshot 106 2002
7043485 System and method for storage of snapshot metadata in a remote file 139 2002
* 7039663 System and method for checkpointing and restarting an asynchronous transfer of data between a source and destination snapshot 98 2002
 
NETWORK APPLIANCE, INC. (1)
* 6289356 Write anywhere file-system layout 271 1998
 
UNISYS CORPORATION (1)
6957221 Method for capturing a physically consistent mirrored snapshot of an online database from a remote database backup system 44 2002
 
HITACHI SOFTWARE ENGINEERING CO., LTD. (1)
* 5293618 Method for controlling access to a shared file and apparatus therefor 23 1990
 
POWER MANAGEMENT ENTERPRISES, LLC (1)
* 5832513 Detecting significant file system alterations during execution of a storage media software utility 40 1996
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP (2)
* 9037538 File system migration 0 2010
* 2013/0054,520 FILE SYSTEM MIGRATION 2 2010
 
AMERICAN MEGATRENDS, INC. (1)
8667330 Information lifecycle management assisted synchronous replication 0 2012
 
HITACHI, LTD. (2)
* 8370302 Method and apparatus for block based volume backup 1 2009
* 2010/0306,174 METHOD AND APPARATUS FOR BLOCK BASED VOLUME BACKUP 15 2009
* Cited By Examiner

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