US Patent No: 7,962,779

Number of patents in Portfolio can not be more than 2000

Systems and methods for a distributed file system with data recovery

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ALSO PUBLISHED AS: 20080243773
ATTORNEY / AGENT: (SPONSORED)
 

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Abstract

The intelligent distributed file system enables the storing of file data among a plurality of smart storage units which are accessed as a single file system. The intelligent distributed file system utilizes a metadata data structure to track and manage detailed information about each file, including, for example, the device and block locations of the file's data blocks, to permit different levels of replication and/or redundancy within a single file system, to facilitate the change of redundancy parameters, to provide high-level protection for metadata, to replicate and move data in real-time, and to permit the creation of virtual hot spares among the smart storage units without the need to idle any single smart storage unit in the intelligent distributed file system.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
EMC CORPORATIONHOPKINTON, MA3478

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Mikesell, Paul A Seattle, WA 18 869
Passey, Aaron J Seattle, WA 80 2450
Patel, Sujal M Seattle, WA 26 760
Schack, Darren P Seattle, WA 54 1618

Cited Art

Patent Info (Count) # Cites Year
 
EMC CORPORATION (77)
5,884,098 RAID controller system utilizing front end and back end caching systems including communication path connecting two caching systems and synchronizing allocation of blocks in caching systems 197 1996
6,209,059 Method and apparatus for the on-line reconfiguration of the logical volumes of a data storage system 109 1997
6,154,854 Logical partitioning of a redundant array storage system 96 1998
6,385,626 Method and apparatus for identifying changes to a logical object based on changes to the logical object at physical level 90 1998
6,457,139 Method and apparatus for providing a host computer with information relating to the mapping of logical volumes within an intelligent storage system 147 1998
2003/0033,308 System and methods for providing a distributed file system utilizing metadata to track information about data stored throughout the system 139 2001
7,685,126 System and methods for providing a distributed file system utilizing metadata to track information about data stored throughout the system 79 2001
7,146,524 Systems and methods for providing a distributed file system incorporating a virtual hot spare 93 2002
2005/0066,095 Multi-threaded write interface and methods for increasing the single file read and write throughput of a file server 91 2003
2004/0153,479 Systems and methods for restriping files in a distributed file system 122 2003
2005/0138,195 Data streaming and backup systems having multiple concurrent read threads for improved small file performance 48 2003
7,318,134 Continuous data backup using distributed journaling 74 2004
7,716,262 Index processing 28 2004
2007/0091,790 Systems and methods for providing variable protection 59 2005
2007/0094,269 Systems and methods for distributed system scanning 68 2005
2007/0094,277 Systems and methods for maintaining distributed data 58 2005
2007/0094,310 Systems and methods for accessing and updating distributed data 61 2005
7,346,720 Systems and methods for managing concurrent access requests to a shared resource 38 2005
7,386,675 Systems and methods for using excitement values to predict future access to resources 38 2005
7,551,572 Systems and methods for providing variable protection 37 2005
7,788,303 Systems and methods for distributed system scanning 33 2005
7,797,283 Systems and methods for maintaining distributed data 33 2005
2006/0095,438 Non-blocking commit protocol systems and methods 57 2005
2006/0101,062 Distributed system with asynchronous execution systems and methods 59 2005
2007/0171,919 Message batching with checkpoints systems and methods 64 2005
2007/0195,810 Systems and methods for providing a quiescing protocol 55 2006
2007/0233,710 Systems and methods for notifying listeners of events 53 2006
7,756,898 Systems and methods for notifying listeners of events 37 2006
2007/0168,351 Non-blocking commit protocol systems and methods 57 2006
2008/0031,238 Systems and methods for configuring multiple network interfaces 59 2006
2006/0277,432 Systems and methods for providing a distributed file system incorporating a virtual hot spare 76 2006
7,509,524 Systems and methods for a distributed file system with data recovery 39 2006
2008/0046,432 Systems and methods for a snapshot of data 67 2006
2008/0046,443 Systems and methods for providing nonlinear journaling 52 2006
2008/0046,444 Systems and methods for providing nonlinear journaling 53 2006
2008/0046,445 Systems and methods of reverse lookup 59 2006
2008/0046,475 Systems and methods for a snapshot of data 54 2006
2008/0046,476 Systems and methods for a snapshot of data 57 2006
2008/0046,667 Systems and methods for allowing incremental journaling 59 2006
2008/0059,541 Systems and methods for a snapshot of data 58 2006
2008/0126,365 Systems and methods for providing nonlinear journaling 53 2006
7,590,652 Systems and methods of reverse lookup 37 2006
7,676,691 Systems and methods for providing nonlinear journaling 39 2006
7,680,836 Systems and methods for a snapshot of data 41 2006
7,680,842 Systems and methods for a snapshot of data 42 2006
7,752,402 Systems and methods for allowing incremental journaling 38 2006
7,822,932 Systems and methods for providing nonlinear journaling 29 2006
2008/0151,724 Systems and methods for managing unavailable storage devices 41 2006
2008/0155,191 Systems and methods for providing heterogeneous storage systems 55 2006
2008/0154,978 Systems and methods of directory entry encodings 53 2006
7,593,938 Systems and methods of directory entry encodings 37 2006
2008/0168,458 Systems and methods for managing semantic locks 55 2007
7,509,448 Systems and methods for managing semantic locks 54 2007
2008/0256,103 Systems and methods of providing possible value ranges 38 2007
2008/0256,537 Systems and methods of quota accounting 35 2007
2008/0256,545 Systems and methods of managing resource utilization on a threaded computer system 45 2007
2008/0021,907 Systems and methods for providing a distributed file system utilizing metadata to track information about data stored throughout the system 55 2007
7,743,033 Systems and methods for providing a distributed file system utilizing metadata to track information about data stored throughout the system 38 2007
2009/0055,399 Systems and methods for reading objects in a file system 35 2007
2009/0055,604 Systems and methods for portals into snapshot data 33 2007
2009/0055,607 Systems and methods for adaptive copy on write 50 2007
2009/0248,756 SYSTEMS AND METHODS FOR A READ ONLY MODE FOR A PORTION OF A STORAGE SYSTEM 36 2008
2009/0248,765 SYSTEMS AND METHODS FOR A READ ONLY MODE FOR A PORTION OF A STORAGE SYSTEM 33 2008
2009/0248,975 SYSTEMS AND METHODS FOR MANAGING STALLED STORAGE DEVICES 37 2008
2009/0249,013 SYSTEMS AND METHODS FOR MANAGING STALLED STORAGE DEVICES 33 2008
2008/0243,773 SYSTEMS AND METHODS FOR A DISTRIBUTED FILE SYSTEM WITH DATA RECOVERY 39 2008
2009/0210,880 SYSTEMS AND METHODS FOR MANAGING SEMANTIC LOCKS 34 2009
2009/0252,066 SYSTEMS AND METHODS FOR PROVIDING VARIABLE PROTECTION 35 2009
2009/0327,218 Systems and Methods of Reverse Lookup 35 2009
7,739,288 Systems and methods of directory entry encodings 37 2009
2010/0223,235 SYSTEMS AND METHODS FOR PROVIDING NONLINEAR JOURNALING 34 2010
2010/0161,556 SYSTEMS AND METHODS FOR A SNAPSHOT OF DATA 36 2010
2010/0161,557 SYSTEMS AND METHODS FOR A SNAPSHOT OF DATA 36 2010
2010/0185,592 Snapshot indexing 35 2010
2010/0235,413 SYSTEMS AND METHODS FOR PROVIDING A DISTRIBUTED FILE SYSTEM UTILIZING METADATA TO TRACK INFORMATION ABOUT DATA STORED THROUGHOUT THE SYSTEM 36 2010
2010/0306,786 SYSTEMS AND METHODS FOR NOTIFYING LISTENERS OF EVENTS 29 2010
2010/0241,632 SYSTEMS AND METHODS OF DIRECTORY ENTRY ENCODINGS 27 2010
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (33)
5,230,047 Method for balancing of distributed tree file structures in parallel computing systems to enable recovery after a failure 98 1990
5,251,206 Hybrid switching system for a communication node 69 1991
5,258,984 Method and means for distributed sparing in DASD arrays 117 1991
5,359,594 Power-saving full duplex nodal communications systems 62 1992
5,734,826 Variable cyclic redundancy coding method and apparatus for use in a multistage network 83 1992
5,596,709 Method and apparatus for recovering parity protected data 94 1992
5,606,669 System for managing topology of a network in spanning tree data structure by maintaining link table and parent table in each network node 223 1995
5,680,621 System and method for domained incremental changes storage and retrieval 52 1995
5,870,563 Method and apparatus for optimizing message transmission 66 1995
5,799,305 Method of commitment in a distributed database transaction 140 1995
5,657,439 Distributed subsystem sparing 87 1995
5,805,578 Automatic reconfiguration of multipoint communication channels 131 1996
5,668,943 Virtual shared disks with application transparent recovery 187 1996
5,917,998 Method and apparatus for establishing and maintaining the status of membership sets used in mirrored read and write input/output without logging 101 1996
5,805,900 Method and apparatus for serializing resource access requests in a multisystem complex 70 1996
5,649,200 Dynamic rule-based version control system 298 1996
5,878,414 Constructing a transaction serialization order based on parallel or distributed database log files 65 1997
6,122,754 Method and system for data recovery using a distributed and scalable data structure 80 1998
6,334,168 Method and system for updating data in a data storage system 75 1999
6,502,174 Method and system for managing meta data 82 1999
6,907,011 Quiescent reconfiguration of a routing network 60 1999
6,895,482 Reordering and flushing commands in a computer memory subsystem 44 1999
7,069,320 Reconfiguring a network by utilizing a predetermined length quiescent state 62 1999
6,917,942 System for dynamically evaluating locks in a distributed data storage system 58 2000
6,618,798 Method, system, program, and data structures for mapping logical units to a storage space comprises of at least one array of storage units 102 2000
2003/0005,159 Method and system for generating and serving multilingual web pages 94 2001
6,920,494 Storage area network methods and apparatus with virtual SAN recognition 92 2001
2004/0133,670 Distributed notification and action mechanism for mirroring-related events 54 2003
2004/0240,444 System and method for managing transactions in a messaging system 41 2003
7,440,966 Method and apparatus for file system snapshot persistence 76 2004
2006/0129,983 Apparatus, system, and method for sharing and accessing data by scopes 59 2004
7,596,713 Fast backup storage and fast recovery of data (FBSRD) 38 2005
7,546,412 Apparatus, system, and method for global metadata copy repair 45 2005
 
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (15)
5,329,626 System for distributed computation processing includes dynamic assignment of predicates to define interdependencies 106 1990
5,481,699 Durable atomic storage update manager 80 1995
5,696,895 Fault tolerant multiple network servers 232 1995
5,774,643 Enhanced raid write hole protection and recovery 196 1995
6,055,564 Admission control where priority indicator is used to discriminate between messages 125 1998
6,671,704 Method and apparatus for handling failures of resource managers in a clustered environment 62 1999
6,453,389 Optimizing computer performance by using data compression principles to minimize a loss function 74 1999
6,742,020 System and method for managing data flow and measuring service in a storage network 85 2000
6,687,805 Method and system for logical-object-to-physical-location translation and physical separation of logical objects 43 2000
6,631,411 Apparatus and method for monitoring a chain of electronic transactions 48 2001
6,895,534 Systems and methods for providing automated diagnostic services for a cluster computer system 80 2001
2003/0149,750 Distributed storage array 60 2002
2004/0143,647 System and method for efficiently replicating a file among a plurality of recipients in a reliable manner 52 2003
7,152,182 Data redundancy system and method 57 2003
2007/0255,765 Systems and methods for file maintenance 39 2006
 
MICROSOFT CORPORATION (13)
5,806,065 Data system with distributed tree indexes and method for maintaining the indexes 153 1996
5,878,410 File system sort order indexes 155 1996
6,202,085 System and method for incremental change synchronization between multiple copies of data 140 1996
5,890,147 Scope testing of documents in a search engine using document to folder mapping 164 1997
6,463,442 Container independent data binding system 92 1998
6,279,007 Architecture for managing query friendly hierarchical values 170 1998
6,408,313 Dynamic memory allocation based on free memory size 72 1998
6,523,130 Storage system having error detection and recovery 106 1999
6,571,244 Run formation in large scale sorting using batched replacement selection 64 1999
6,546,443 Concurrency-safe reader-writer lock with time out support 102 1999
6,594,660 Share latch clearing 60 2000
2005/0289,188 Allocation locks and their use 59 2004
2006/0230,411 Resource accessing with locking 60 2005
 
BROADBAND STORAGE, LLC (12)
2002/0124,137 Enhancing disk array performance via variable parity based load balancing 125 2002
2002/0138,559 Dynamically distributed file system 104 2002
2002/0156,973 Enhanced disk array 79 2002
2002/0156,974 Redundant dynamically distributed file system 78 2002
2002/0161,846 Data path controller architecture 61 2002
2002/0161,850 Data path accelerator for storage systems 70 2002
2002/0165,942 Data path accelerator with variable parity, variable length, and variable extent parity groups 76 2002
2002/0169,827 Hot adding file system processors 68 2002
2002/0174,295 Enhanced file system failure tolerance 137 2002
2002/0174,296 Disk replacement via hot swapping with variable parity 80 2002
2002/0178,162 Integrated distributed file system with variable parity groups 75 2002
2002/0191,311 Dynamically scalable disk array 68 2002
 
SUN MICROSYSTEMS, INC. (11)
5,761,659 Method, product, and structure for flexible range locking of read and write requests using shared and exclusive locks, flags, sub-locks, and counters 115 1996
5,822,790 Voting data prefetch engine 108 1997
6,014,669 Highly-available distributed cluster configuration database 266 1997
6,117,181 Synchronization mechanism for distributed hardware simulation 84 1998
6,021,414 Single transaction technique for a journaling file system of a computer operating system 98 1998
6,748,429 Method to dynamically change cluster or distributed system configuration 88 2000
2003/0061,491 System and method for the allocation of network storage 126 2001
7,313,614 Switching system 106 2001
6,907,520 Threshold-based load address prediction and new thread identification in a multithreaded microprocessor 48 2002
7,111,305 Facilitating event notification through use of an inverse mapping structure for subset determination 55 2002
2005/0044,197 Structured methodology and design patterns for web services 285 2003
 
ORACLE INTERNATIONAL CORPORATION (8)
6,070,172 On-line free space defragmentation of a contiguous-file file system 91 1997
6,922,708 File system that supports transactions 75 2000
7,290,056 Monitoring latency of a network to manage termination of distributed transactions 106 2000
7,206,805 Asynchronous transcription object management system 193 2000
2004/0205,141 System and method for message ordering in a message oriented network 67 2004
2006/0129,584 Performing an action in response to a file system event 83 2004
2008/0010,507 Selecting optimal repair strategy for mirrored files 53 2006
2007/0233,684 NEIGHBORING LOCKING TECHNIQUE FOR INCREASING CONCURRENCY AMONG TRANSACTIONS 55 2007
 
SEACHANGE INTERNATIONAL, INC. (8)
5,862,312 Loosely coupled mass storage computer cluster 144 1995
5,996,089 Loosely coupled mass storage computer cluster 120 1997
6,321,345 Slow response in redundant arrays of inexpensive disks 78 1999
6,571,349 Loosely coupled mass storage computer cluster 65 1999
6,449,730 Loosely coupled mass storage computer cluster 84 2001
6,557,114 Loosely coupled mass storage computer cluster 65 2001
6,567,926 Loosely coupled mass storage computer cluster 62 2001
6,574,745 Loosely coupled mass storage computer cluster 62 2002
 
HITACHI, LTD. (7)
5,548,724 File server system and file access control method of the same 263 1994
5,754,756 Disk array system having adjustable parity group sizes based on storage unit capacities 86 1996
7,124,264 Storage system, control method for storage system, and storage control unit 54 2004
7,017,003 Disk array apparatus and disk array apparatus control method 54 2004
7,451,341 Storage system and communications path control method for storage system 55 2004
7,571,348 Storage system creating a recovery request point enabling execution of a recovery 44 2006
2008/0059,734 Storage subsystem and back-up/recovery method 33 2006
 
INTEL CORPORATION (7)
6,353,823 Method and system for using associative metadata 165 1999
2002/0087,366 Tentative-hold-based protocol for distributed transaction processing 74 2000
7,181,746 Initialization, reconfiguration, and shut down of a module function 40 2001
7,240,235 Journaling technique for write transactions to mass storage 57 2002
6,934,878 Failure detection and failure handling in cluster controller networks 67 2002
7,257,257 Method and apparatus for differential, bandwidth-efficient and storage-efficient backups 74 2003
2006/0288,161 RAID power safe apparatus, systems, and methods 57 2005
 
NETWORK APPLIANCE, INC. (6)
5,163,131 Parallel I/O network file server architecture 787 1989
6,038,570 Method for allocating files in a file system integrated with a RAID disk sub-system 319 1995
6,081,883 Processing system with dynamically allocatable buffer memory 143 1997
6,138,126 Method for allocating files in a file system integrated with a raid disk sub-system 165 1999
7,225,204 System and method for asynchronous mirroring of snapshots at a destination using a purgatory directory and inode mapping 107 2002
2007/0038,887 Remote disaster recovery and data migration using virtual appliance migration 42 2006
 
GOOGLE INC. (4)
5,933,834 System and method for re-striping a set of objects onto an exploded array of storage units in a computer system 96 1997
5,966,707 Method for managing a plurality of data processes residing in heterogeneous data repositories 214 1997
6,567,894 Method and apparatus to prefetch sequential pages in a multi-stream environment 67 1999
2008/0044,016 Detecting duplicate and near-duplicate files 66 2006
 
NETAPP, INC. (4)
6,594,744 Managing a snapshot volume or one or more checkpoint volumes with multiple point-in-time images in a single repository 137 2000
7,043,485 System and method for storage of snapshot metadata in a remote file 110 2002
7,533,298 Write journaling using battery backed cache 51 2005
7,783,666 Controlling access to storage resources by using access pattern based quotas 36 2007
 
STORAGE TECHNOLOGY CORPORATION (4)
5,403,639 File server having snapshot application data groups 401 1992
6,732,125 Self archiving log structured volume with intrinsic data protection 198 2000
6,990,604 Virtual storage status coalescing with a plurality of physical storage devices 52 2001
7,007,044 Storage backup system for backing up data written to a primary storage device to multiple virtual mirrors using a reconciliation process that reflects the changing state of the primary storage device over time 84 2002
 
ADAPTEC, INC. (3)
6,219,693 File array storage architecture having file system distributed across a data processing platform 118 1997
6,029,168 Decentralized file mapping in a striped network file system in a distributed computing environment 206 1998
6,725,392 Controller fault recovery system for a distributed file system 102 2000
 
KABUSHIKI KAISHA TOSHIBA (3)
6,081,833 Memory space management method, data transfer method, and computer device for distributed computer system 70 1996
7,373,426 Network system using name server with pseudo host name and pseudo IP address generation function 54 2003
2004/0267,747 Transaction processing system supporting concurrent accesses to hierarchical data by transactions 46 2004
 
LSI LOGIC CORPORATION (3)
6,173,374 System and method for peer-to-peer accelerated I/O shipping between host bus adapters in clustered computer network 221 1998
6,526,478 Raid LUN creation using proportional disk mapping 96 2000
6,499,091 System and method for synchronizing data mirrored by storage subsystems 71 2000
 
SYMANTEC OPERATING CORPORATION (3)
7,631,066 System and method for preventing data corruption in computer system clusters 37 2002
7,228,299 System and method for performing file lookups based on tags 63 2003
7,194,487 System and method for recording the order of a change caused by restoring a primary volume during ongoing replication of the primary volume 51 2003
 
APPLE INC. (2)
6,434,574 System and method for storing and retrieving filenames and files in computer memory using multiple encodings 59 1998
2008/0034,004 System for electronic backup 68 2006
 
CISCO TECHNOLOGY, INC. (2)
6,856,591 Method and system for high reliability cluster management 146 2000
2006/0155,831 Network topology based storage allocation for virtualization 46 2005
 
INTERNATIONAL COMPUTERS LIMITED (2)
5,459,871 Detection and resolution of resource deadlocks in a distributed data processing system 94 1993
5,884,303 Parallel searching technique 89 1997
 
OVERLAND STORAGE, INC. (2)
6,871,295 Dynamic data recovery 71 2002
2005/0010,592 Method and system for taking a data snapshot 49 2003
 
RAINFINITY, INC. (2)
6,801,949 Distributed server cluster with graphical user interface 193 2000
7,546,354 Dynamic network based storage with high availability 51 2002
 
SONY UNITED KINGDOM LIMITED (2)
5,943,690 Data storage apparatus and method allocating sets of data 66 1997
2004/0003,053 System 58 2003
 
AB INITIO TECHNOLOGY LLC (1)
2001/0042,224 Continuous flow compute point based data processing 48 2000
 
ALCATEL (1)
6,549,513 Method and apparatus for fast distributed restoration of a communication network 98 1999
 
ATEX PUBLISHING SYSTEMS CORPORATION (1)
5,181,162 Document management and production system 450 1989
 
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY (1)
2003/0014,391 Data distribution 98 2002
 
CGI TECHNOLOGIES AND SOLUTIONS INC. (1)
6,415,259 Automatic work progress tracking and optimizing engine for a telecommunications customer care and billing system 152 1999
 
CORPORATION FOR NATIONAL RESEARCH INITIATIVES (1)
2003/0020,173 Radio frequency microelectromechanical systems (MEMS) devices on low-temperature co-fired ceramic (LTCC) substrates 2002
 
CRAY INC. (1)
7,558,910 Detecting access to a memory location in a multithreaded environment 39 2003
 
DATA EQUATION LIMITED (1)
2008/0005,145 Data processing 53 2007
 
DELL PRODUCTS L.P. (1)
6,598,174 Method and apparatus for storage unit replacement in non-redundant array 185 2000
 
DELPHI DATA, A DIVISION OF SPARKS INDUSTRIES, INC. (1)
5,212,784 Automated concurrent data backup system 245 1990
 
DOT HILL SYSTEMS CORPORATION (1)
6,990,611 Recovering data from arrays of storage devices after certain failures 48 2000
 
EMULEX DESIGN & MANUFACTURING CORPORATION (1)
6,393,483 Method and apparatus for network interface card load balancing and port aggregation 154 1997
 
F5 NETWORKS, INC. (1)
6,405,219 Method and system for automatically updating the version of a set of files stored on content servers 130 1999
 
FUSION-IO, INC. (1)
2008/0168,304 APPARATUS, SYSTEM, AND METHOD FOR DATA STORAGE USING PROGRESSIVE RAID 48 2007
 
GRAVIC, INC. (1)
7,113,938 Method of increasing system availability by splitting a system 36 2003
 
HARRIS CORPORATION (1)
6,954,435 Determining quality of service (QoS) routing for mobile ad hoc networks 111 2002
 
IBM INTERNATIONAL GROUP BV (1)
7,577,667 Programmable streaming data processor for database appliance having multiple processing unit groups 48 2003
 
ITT MANUFACTURING ENTERPRISES, INC. (1)
7,184,421 Method and apparatus for on demand multicast and unicast using controlled flood multicast communications 116 2001
 
KIZNA CORPORATION (1)
2002/0078,180 Information collection server, information collection method, and recording medium 61 2001
 
LOUDCLOUD, INC. (1)
2002/0158,900 Graphical user interfaces for network management automated provisioning environment 46 2001
 
LYNESS, STANLEY (1)
6,496,842 Navigating heirarchically organized information 133 1999
 
MASCOTECH, INC. (1)
6,662,184 Lock-free wild card search data structure and method 80 2000
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (1)
2006/0074,922 File management device, file management method, file management program and recording medium 57 2003
 
MAXTOR CORPORATION (1)
5,548,795 Method for determining command execution dependencies within command queue reordering process 86 1994
 
MICRO-STAR INT'L CO., LTD. (1)
6,384,626 Programmable apparatus and method for programming a programmable device 67 2001
 
MOSYS, INC. (1)
6,000,007 Caching in a multi-processor computer system 59 1998
 
MOTOROLA SOLUTIONS, INC. (1)
2003/0109,253 Digital communications system 59 2002
 
NEC CORPORATION (1)
2002/0038,436 Disk array apparatus, error control method for the same apparatus, and control program for the same method 69 2001
 
NOKIA CORPORATION (1)
2006/0083,177 Listener mechanism in a distributed network system 51 2004
 
NORTHEASTERN UNIVERSITY (1)
5,694,593 Distributed computer database system and method 136 1994
 
NSTOR CORPORATION (1)
6,052,759 Method for organizing storage devices of unequal storage capacity and distributing data using different raid formats depending on size of rectangles containing sets of the storage devices 120 1998
 
NVIDIA CORPORATION (1)
7,386,697 Memory management for virtual address space with translation units of variable range size 42 2005
 
OPENTV, INC. (1)
2003/0163,726 Method and apparatus for providing a hierarchical security profile object 56 2003
 
PAONESSA RESEARCH, LIMITED LIABILITY COMPANY (1)
6,848,029 Method and apparatus for prefetching recursive data structures 102 2001
 
PHILIPS ELECTRONICS NORTH AMERICA CORPORATION (1)
2002/0078,161 UPnP enabling device for heterogeneous networks of slave devices 81 2000
 
PLENUS TECHNOLOGY LTD. (1)
6,594,655 Wildcards in radix- search tree structures 72 2001
 
PLURIS, INC. (1)
5,884,046 Apparatus and method for sharing data and routing messages between a plurality of workstations in a local area network 173 1996
 
PORTAUTHORITY TECHNOLOGIES INC. (1)
2004/0189,682 Method and a system for embedding textual forensic information 61 2003
 
ROCKSTAR BIDCO, LP (1)
2003/0009,591 Apparatus and method for managing internet resource requests 4 2001
 
SAP AG (1)
2006/0206,536 Providing a snapshot of a subset of a file system 61 2006
 
SCIENTIFIC RESEARCH CORPORATION (1)
7,177,295 Wireless routing protocol for ad-hoc networks 135 2002
 
SEAGATE TECHNOLOGY LLC (1)
7,043,567 Method and apparatus for determining the order of execution of queued commands in a data storage system 40 2002
 
SILICON GRAPHICS INTERNATIONAL, CORP. (1)
7,007,097 Method and system for covering multiple resourcces with a single credit in a computer system 53 2001
 
SK TELECOM CO., LTD. (1)
2006/0129,631 Method for controlling a media message upload through a wireless communication network 61 2004
 
SRI INTERNATIONAL (1)
6,922,696 Lattice-based security classification system and method 64 2000
 
STEELEYE TECHNOLOGY, INC. (1)
5,612,865 Dynamic hashing method for optimal distribution of locks within a clustered system 135 1995
 
SYBASE, INC. (1)
7,249,118 Database system and methods 85 2002
 
SYMANTEC CORPORATION (1)
6,108,759 Manipulation of partitions holding advanced file systems 108 1997
 
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD. (1)
5,568,629 Method for partitioning disk drives within a physical disk array and selectively assigning disk drive partitions into a logical disk array 213 1993
 
TEXAS INSTRUMENTS INCORPORATED (1)
6,397,311 System and method for defragmenting a file system 104 1995
 
THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK (1)
2002/0163,889 Method and apparatus for providing services on a dynamically addressed network 88 2001
 
THOMSON LICENSING (1)
2004/0078,812 Method and apparatus for acquiring media services available from content aggregators 86 2003
 
TRANSOFT TECHNOLOGY CORPORATION (1)
6,044,367 Distributed I/O store 205 1998
 
UNIVERSITY OF SOUTHERN CALIFORNIA (1)
2003/0161,302 Continuous media system 43 2003
 
UNWIRED PLANET, INC. (1)
6,421,781 Method and apparatus for maintaining security in a push server 166 1998
 
VERANO (1)
6,055,543 File wrapper containing cataloging information for content searching across multiple platforms 175 1997
 
VIA TECHNOLOGIES, INC. (1)
6,502,172 Memory accessing and controlling unit 58 2002
 
VLADIMIR MATENA (1)
2004/0158,549 Method and apparatus for online transaction processing 83 2004
 
VTECH TELECOMMUNICATIONS LIMITED (1)
6,940,966 Method and apparatus for detection of a telephone CPE alerting signal 58 2002
 
WELLS FARGO CAPITAL FINANCE, LLC (1)
2004/0117,802 Event monitoring system and method 44 2002
 
WISCONSIN ALUMNI RESEARCH FOUNDATION (1)
6,658,554 Electronic processor providing direct data transfer between linked data consuming instructions 46 1999
 
ZAMBEEL, INC. (1)
2004/0199,812 Fault tolerance using logical checkpointing in computing systems 68 2001
 
ZIONS BANCORPORATION (1)
2002/0029,200 System and method for providing certificate validation and other services 70 2001
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (8)
2002/0107,877 SYSTEM FOR BACKING UP FILES FROM DISK VOLUMES ON MULTIPLE NODES OF A COMPUTER NETWORK 208 1997
6,671,686 Decentralized, distributed internet data management 70 2001
2002/0072,974 System and method for displaying and selling goods and services in a retail environment employing electronic shopper aids 153 2001
7,370,064 Database remote replication for back-end tier of multi-tier computer systems 45 2002
7,103,597 Adaptive transaction manager for complex transactions and business process 62 2002
2005/0125,456 File migration method based on access history 40 2004
2005/0187,889 Method for managing file using network structure, operation object display limiting program, and recording medium 42 2004
2008/0294,611 HIERARCHICAL STORAGE MANAGEMENT USING DYNAMIC TABLES OF CONTENTS AND SETS OF TABLES OF CONTENTS 49 2008

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
EMC CORPORATION (16)
8,238,350 Message batching with checkpoints systems and methods 0 2005
8,140,623 Non-blocking commit protocol systems and methods 0 2006
8,286,029 Systems and methods for managing unavailable storage devices 0 2006
8,156,405 Efficient redundant memory unit array 0 2008
8,082,379 Systems and methods for managing semantic locks 5 2009
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NEC CORPORATION (1)
8,201,056 Anti-jamming piecewise coding method for parallel inference channels 0 2008

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