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

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Systems and methods for a snapshot of data

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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, MA5274

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Anderson, Robert J London, GB 124 6322
Fachan, Neal T Seattle, US 43 2864
Lemar, Eric M Seattle, US 14 966
Passey, Aaron J Seattle, US 41 2980
Richards, David W Seattle, US 12 393
Schack, Darren P Seattle, US 28 2107

Cited Art Landscape

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6,546,443 Concurrency-safe reader-writer lock with time out support 126 1999
6,594,660 Share latch clearing 66 2000
2005/0289,188 Allocation locks and their use 64 2004
2006/0230,411 Resource accessing with locking 74 2005
 
Konica Corporation (1)
4,464,279 Magnetic recording medium 36 1982
 
ATEX PUBLISHING SYSTEMS CORPORATION (1)
5,181,162 Document management and production system 478 1989
 
NETAPP, INC. (6)
5,163,131 Parallel I/O network file server architecture 965 1989
6,594,744 Managing a snapshot volume or one or more checkpoint volumes with multiple point-in-time images in a single repository 169 2000
7,043,485 System and method for storage of snapshot metadata in a remote file 132 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 29 2005
7,783,666 Controlling access to storage resources by using access pattern based quotas 49 2007
 
THOMSON LICENSING (1)
2004/0078,812 Method and apparatus for acquiring media services available from content aggregators 145 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 83 2001
 
ZAMBEEL, INC. (1)
2004/0199,812 Fault tolerance using logical checkpointing in computing systems 88 2001
 
DELL PRODUCTS L.P. (1)
6,598,174 Method and apparatus for storage unit replacement in non-redundant array 220 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 145 1995
 
ALCATEL (1)
6,549,513 Method and apparatus for fast distributed restoration of a communication network 114 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 258 1997
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (1)
2006/0074,922 File management device, file management method, file management program and recording medium 66 2003
 
NETWORK APPLIANCE CORPORATION (1)
6,138,126 Method for allocating files in a file system integrated with a raid disk sub-system 186 1999
 
UNIVERSITY OF SOUTHERN CALIFORNIA (1)
2003/0161,302 Continuous media system 56 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 1 2010
* 2012/0066,278 DISTRIBUTED FILE HIERARCHY MANAGEMENT IN A CLUSTERED REDIRECT-ON-WRITE FILE SYSTEM 0 2010
 
VMWARE, INC. (1)
* 2015/0081,994 INCREMENTAL BACKUPS USING RETIRED SNAPSHOTS 0 2013
 
EMC CORPORATION (14)
8,238,350 Message batching with checkpoints systems and methods 2 2005
8,286,029 Systems and methods for managing unavailable storage devices 7 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 3 2010
* 2011/0016,353 SYSTEMS AND METHODS FOR DISTRIBUTED SYSTEM SCANNING 20 2010
8,214,400 Systems and methods for maintaining distributed data 3 2010
* 2011/0035,412 SYSTEMS AND METHODS FOR MAINTAINING DISTRIBUTED DATA 21 2010
8,356,150 Systems and methods for providing nonlinear journaling 8 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 3 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
 
HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP (2)
* 9,317,525 Reconstructing a state of a file system using a preserved snapshot 0 2013
* 2014/0214,773 RECONSTRUCTING A STATE OF A FILE SYSTEM USING A PRESERVED SNAPSHOT 0 2013
* Cited By Examiner

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