US Patent No: 8,176,013

Number of patents in Portfolio can not be more than 2000

Systems and methods for accessing and updating distributed data

ALSO PUBLISHED AS: 20110145195

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Systems and methods are disclosed that provide an indexing data structure. In one embodiment, the indexing data structure is mirrored index tree where the copies of the nodes of the tree are stored across devices in a distributed system. In one embodiment, nodes that are stored on an offline device are restored, and an offline device that comes back online is merged into the distributed system and given access to the current indexing data structure. In one embodiment, the indexing data structure is traversed to locate and restore nodes that are stored on offline devices of the distributed system.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
EMC CORPORATIONHOPKINTON, MA4209

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Anderson, Robert J Phoenixville, PA 186 4784
Fachan, Neal T Seattle, WA 86 2614
Godman, Peter J Seattle, WA 45 1251
Passey, Aaron J Seattle, WA 82 2707
Schack, Darren P Seattle, WA 56 1826

Cited Art Landscape

Patent Info (Count) # Cites Year
 
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2008/0046,667 Systems and methods for allowing incremental journaling 64 2006
2008/0059,541 Systems and methods for a snapshot of data 68 2006
2008/0126,365 Systems and methods for providing nonlinear journaling 55 2006
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7,593,938 Systems and methods of directory entry encodings 40 2006
2008/0154,978 Systems and methods of directory entry encodings 56 2006
7,509,448 Systems and methods for managing semantic locks 57 2007
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7,900,015 Systems and methods of quota accounting 24 2007
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7,743,033 Systems and methods for providing a distributed file system utilizing metadata to track information about data stored throughout the system 40 2007
2008/0021,907 Systems and methods for providing a distributed file system utilizing metadata to track information about data stored throughout the system 59 2007
7,882,068 Systems and methods for adaptive copy on write 25 2007
7,949,692 Systems and methods for portals into snapshot data 23 2007
7,966,289 Systems and methods for reading objects in a file system 18 2007
2009/0055,399 Systems and methods for reading objects in a file system 40 2007
2009/0055,604 Systems and methods for portals into snapshot data 34 2007
2009/0055,607 Systems and methods for adaptive copy on write 60 2007
7,870,345 Systems and methods for managing stalled storage devices 23 2008
7,949,636 Systems and methods for a read only mode for a portion of a storage system 15 2008
7,953,709 Systems and methods for a read only mode for a portion of a storage system 16 2008
7,984,324 Systems and methods for managing stalled storage devices 14 2008
2009/0248,756 SYSTEMS AND METHODS FOR A READ ONLY MODE FOR A PORTION OF A STORAGE SYSTEM 40 2008
2009/0248,765 SYSTEMS AND METHODS FOR A READ ONLY MODE FOR A PORTION OF A STORAGE SYSTEM 34 2008
2009/0248,975 SYSTEMS AND METHODS FOR MANAGING STALLED STORAGE DEVICES 39 2008
2009/0249,013 SYSTEMS AND METHODS FOR MANAGING STALLED STORAGE DEVICES 38 2008
7,962,779 Systems and methods for a distributed file system with data recovery 19 2008
2008/0243,773 SYSTEMS AND METHODS FOR A DISTRIBUTED FILE SYSTEM WITH DATA RECOVERY 51 2008
2009/0210,880 SYSTEMS AND METHODS FOR MANAGING SEMANTIC LOCKS 36 2009
8,054,765 Systems and methods for providing variable protection 15 2009
2009/0252,066 SYSTEMS AND METHODS FOR PROVIDING VARIABLE PROTECTION 36 2009
8,027,984 Systems and methods of reverse lookup 11 2009
2009/0327,218 Systems and Methods of Reverse Lookup 37 2009
7,739,288 Systems and methods of directory entry encodings 38 2009
2010/0223,235 SYSTEMS AND METHODS FOR PROVIDING NONLINEAR JOURNALING 35 2010
8,010,493 Systems and methods for a snapshot of data 12 2010
8,015,156 Systems and methods for a snapshot of data 10 2010
2010/0161,556 SYSTEMS AND METHODS FOR A SNAPSHOT OF DATA 39 2010
2010/0161,557 SYSTEMS AND METHODS FOR A SNAPSHOT OF DATA 37 2010
2010/0185,592 Snapshot indexing 36 2010
2010/0235,413 SYSTEMS AND METHODS FOR PROVIDING A DISTRIBUTED FILE SYSTEM UTILIZING METADATA TO TRACK INFORMATION ABOUT DATA STORED THROUGHOUT THE SYSTEM 39 2010
8,005,865 Systems and methods for notifying listeners of events 11 2010
2010/0306,786 SYSTEMS AND METHODS FOR NOTIFYING LISTENERS OF EVENTS 31 2010
7,844,617 Systems and methods of directory entry encodings 22 2010
2010/0241,632 SYSTEMS AND METHODS OF DIRECTORY ENTRY ENCODINGS 28 2010
8,015,216 Systems and methods of providing possible value ranges 11 2010
2011/0035,412 SYSTEMS AND METHODS FOR MAINTAINING DISTRIBUTED DATA 20 2010
2011/0022,790 SYSTEMS AND METHODS FOR PROVIDING NONLINEAR JOURNALING 26 2010
2011/0044,209 SYSTEMS AND METHODS FOR PROVIDING A QUIESCING PROTOCOL 22 2010
8,060,521 Systems and methods of directory entry encodings 10 2010
7,971,021 Systems and methods for managing stalled storage devices 17 2010
2011/0087,635 SYSTEMS AND METHODS FOR A SNAPSHOT OF DATA 20 2010
2011/0113,211 SYSTEMS AND METHODS OF QUOTA ACCOUNTING 15 2011
2011/0119,234 SYSTEMS AND METHODS FOR ADAPTIVE COPY ON WRITE 19 2011
2011/0153,569 SYSTEMS AND METHODS FOR PROVIDING NONLINEAR JOURNALING 14 2011
 
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Patent Info (Count) # Cites Year
 
EMC CORPORATION (2)
8,286,029 Systems and methods for managing unavailable storage devices 1 2006
8,625,464 Systems and methods for providing a quiescing protocol 0 2010

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