US Patent No: 8,010,493 - Analytics, PDF, Full Text and PAIR Access

Number of patents in Portfolio can not be more than 2000

Systems and methods for a snapshot of data

ALSO PUBLISHED AS: 20100161556

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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In one embodiment, a user or client device is connected to a distributed file system comprised of one or more physical nodes. The data on each of the physical nodes store metadata about files and directories within the file system. Some of the embodiments permit a user to take a snapshot of data stored on the file system. The snapshot may include a single file, a single directory, a plurality of files within a directory, a plurality of directories, a path on the file system that includes nested files and subdirectories, or more than one path on the file system that each includes nested files and directories. In one embodiment, the metadata comprises mini-snapshots for directories representing a path from the root of the file system to the root of the snapshot. The mini-snapshots serve as stand-ins for portions of the file system which are not included in the snapshot, but which permit access to the snapshot data in an intuitive way.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
EMC CORPORATIONHOPKINTON, MA4383

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Anderson, Robert J London, GB 123 3404
Fachan, Neal T Seattle, US 43 920
Lemar, Eric M Seattle, US 14 335
Passey, Aaron J Seattle, US 41 1042
Richards, David W Seattle, US 11 165
Schack, Darren P Seattle, US 28 657

Cited Art Landscape

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2010/0161,557 SYSTEMS AND METHODS FOR A SNAPSHOT OF DATA 38 2010
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6,408,313 Dynamic memory allocation based on free memory size 83 1998
6,523,130 Storage system having error detection and recovery 126 1999
6,571,244 Run formation in large scale sorting using batched replacement selection 78 1999
6,546,443 Concurrency-safe reader-writer lock with time out support 123 1999
6,594,660 Share latch clearing 65 2000
2005/0289,188 Allocation locks and their use 62 2004
2006/0230,411 Resource accessing with locking 70 2005
 
Konica Corporation (1)
4,464,279 Magnetic recording medium 36 1982
 
NETAPP, INC. (5)
6,594,744 Managing a snapshot volume or one or more checkpoint volumes with multiple point-in-time images in a single repository 161 2000
7,043,485 System and method for storage of snapshot metadata in a remote file 124 2002
7,533,298 Write journaling using battery backed cache 56 2005
7,707,193 System and method for verifying and restoring the consistency of inode to pathname mappings in a filesystem 26 2005
7,783,666 Controlling access to storage resources by using access pattern based quotas 44 2007
 
ATEX PUBLISHING SYSTEMS CORPORATION (1)
5,181,162 Document management and production system 472 1989
 
THOMSON LICENSING (1)
2004/0078,812 Method and apparatus for acquiring media services available from content aggregators 128 2003
 
Data Equation Limited (1)
2008/0005,145 Data processing 56 2007
 
ERICSSON INC. (1)
2002/0198,027 Convenient dialing of names and numbers from a phone without alpha keypad 63 2001
 
ZAMBEEL, INC. (1)
2004/0199,812 Fault tolerance using logical checkpointing in computing systems 80 2001
 
DELL PRODUCTS L.P. (1)
6,598,174 Method and apparatus for storage unit replacement in non-redundant array 210 2000
 
VTech Telecommunications Limited (1)
6,940,966 Method and apparatus for detection of a telephone CPE alerting signal 61 2002
 
STEELEYE TECHNOLOGY, INC. (1)
5,612,865 Dynamic hashing method for optimal distribution of locks within a clustered system 143 1995
 
ALCATEL (1)
6,549,513 Method and apparatus for fast distributed restoration of a communication network 110 1999
 
N_GINE LLC (1)
2007/0192,254 MULTI-PROCESSING FINANCIAL TRANSACTION PROCESSING SYSTEM 32 2007
 
VERANO (1)
6,055,543 File wrapper containing cataloging information for content searching across multiple platforms 228 1997
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (1)
2006/0074,922 File management device, file management method, file management program and recording medium 64 2003
 
UNIVERSITY OF SOUTHERN CALIFORNIA (1)
2003/0161,302 Continuous media system 53 2003
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (2)
* 8,495,112 Distributed file hierarchy management in a clustered redirect-on-write file system 0 2010
* 2012/0066,278 DISTRIBUTED FILE HIERARCHY MANAGEMENT IN A CLUSTERED REDIRECT-ON-WRITE FILE SYSTEM 0 2010
 
EMC CORPORATION (12)
8,238,350 Message batching with checkpoints systems and methods 2 2005
8,286,029 Systems and methods for managing unavailable storage devices 5 2006
8,966,080 Systems and methods of managing resource utilization on a threaded computer system 0 2007
8,214,334 Systems and methods for distributed system scanning 2 2010
8,214,400 Systems and methods for maintaining distributed data 3 2010
8,356,150 Systems and methods for providing nonlinear journaling 6 2010
8,625,464 Systems and methods for providing a quiescing protocol 0 2010
8,176,013 Systems and methods for accessing and updating distributed data 4 2010
8,356,013 Systems and methods for a snapshot of data 2 2010
8,195,905 Systems and methods of quota accounting 2 2011
8,200,632 Systems and methods for adaptive copy on write 3 2011
8,380,689 Systems and methods for providing nonlinear journaling 2 2011
* Cited By Examiner

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