US Patent No: 7,984,324

Number of patents in Portfolio can not be more than 2000

Systems and methods for managing stalled storage devices

ALSO PUBLISHED AS: 20090248975
1 Status Updates

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

Embodiments relate to systems and methods for managing stalled storage devices of a storage system. In one embodiment, a method for managing access to storage devices includes determining that a first storage device, which stores a first resource, is stalled and transitioning the first storage device to a stalled state. The method also includes receiving an access request for at least a portion of the first resource while the first storage device is in the stalled state and attempting to provide access to a representation of the portion of the first resource from at least a second storage device that is not in a stalled state. In another embodiment, a method of managing access requests by a thread for a resource stored on a storage device includes initializing a thread access level for an access request by a thread for the resource. The method also includes determining whether the storage device, which has a device access level, is accessible based at least in part on the thread access level and the device access level and selecting a thread operation based at least in part on the determination of whether the storage device is accessible. The thread operation may be selected from attempting the thread access request if the device is accessible and determining whether to restart the thread access request if the device is not accessible.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddressTotal Patents
EMC CORPORATIONHOPKINTON, MA4111

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Akidau, Tyler A - 10 254
Daud, Asif - 6 145
Eng, Brian - 3 60
Maykov, Ilya - 6 145
Passey, Aaron J Seattle, WA 82 2827

Cited Art Landscape

Patent Info (Count) # Cites Year
 
PMC-SIERRA, INC. (3)
6,219,693 File array storage architecture having file system distributed across a data processing platform 157 1997
6,029,168 Decentralized file mapping in a striped network file system in a distributed computing environment 227 1998
6,725,392 Controller fault recovery system for a distributed file system 127 2000
 
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 296 1997
6,671,686 Decentralized, distributed internet data management 75 2001
2002/0072,974 System and method for displaying and selling goods and services in a retail environment employing electronic shopper aids 209 2001
7,370,064 Database remote replication for back-end tier of multi-tier computer systems 56 2002
7,103,597 Adaptive transaction manager for complex transactions and business process 88 2002
2005/0125,456 File migration method based on access history 49 2004
2005/0187,889 Method for managing file using network structure, operation object display limiting program, and recording medium 45 2004
2008/0294,611 HIERARCHICAL STORAGE MANAGEMENT USING DYNAMIC TABLES OF CONTENTS AND SETS OF TABLES OF CONTENTS 52 2008
 
WELLS FARGO CAPITAL FINANCE, LLC (1)
2004/0117,802 Event monitoring system and method 56 2002
 
CORPORATION FOR NATIONAL RESEARCH INITIATIVES (1)
2003/0020,173 Radio frequency microelectromechanical systems (MEMS) devices on low-temperature co-fired ceramic (LTCC) substrates 18 2002
 
PAONESSA RESEARCH, LIMITED LIABILITY COMPANY (1)
6,848,029 Method and apparatus for prefetching recursive data structures 115 2001
 
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 234 1993
 
WISCONSIN ALUMNI RESEARCH FOUNDATION (1)
6,658,554 Electronic processor providing direct data transfer between linked data consuming instructions 48 1999
 
HITACHI, LTD. (4)
5,754,756 Disk array system having adjustable parity group sizes based on storage unit capacities 98 1996
7,017,003 Disk array apparatus and disk array apparatus control method 60 2004
7,451,341 Storage system and communications path control method for storage system 62 2004
7,571,348 Storage system creating a recovery request point enabling execution of a recovery 48 2006
 
BROADBAND STORAGE, LLC (12)
2002/0124,137 Enhancing disk array performance via variable parity based load balancing 174 2002
2002/0138,559 Dynamically distributed file system 127 2002
2002/0156,973 Enhanced disk array 83 2002
2002/0156,974 Redundant dynamically distributed file system 86 2002
2002/0161,846 Data path controller architecture 64 2002
2002/0161,850 Data path accelerator for storage systems 74 2002
2002/0165,942 Data path accelerator with variable parity, variable length, and variable extent parity groups 89 2002
2002/0169,827 Hot adding file system processors 78 2002
2002/0174,295 Enhanced file system failure tolerance 168 2002
2002/0174,296 Disk replacement via hot swapping with variable parity 86 2002
2002/0178,162 Integrated distributed file system with variable parity groups 90 2002
2002/0191,311 Dynamically scalable disk array 72 2002
 
OVERLAND STORAGE, INC. (2)
6,871,295 Dynamic data recovery 84 2002
2005/0010,592 Method and system for taking a data snapshot 52 2003
 
ORACLE INTERNATIONAL CORPORATION (7)
6,070,172 On-line free space defragmentation of a contiguous-file file system 112 1997
7,290,056 Monitoring latency of a network to manage termination of distributed transactions 138 2000
7,206,805 Asynchronous transcription object management system 247 2000
2004/0205,141 System and method for message ordering in a message oriented network 82 2004
2006/0129,584 Performing an action in response to a file system event 91 2004
2008/0010,507 Selecting optimal repair strategy for mirrored files 60 2006
2007/0233,684 NEIGHBORING LOCKING TECHNIQUE FOR INCREASING CONCURRENCY AMONG TRANSACTIONS 58 2007
 
APPLE INC. (2)
6,434,574 System and method for storing and retrieving filenames and files in computer memory using multiple encodings 64 1998
2008/0034,004 System for electronic backup 86 2006
 
UNWIRED PLANET, LLC (1)
6,421,781 Method and apparatus for maintaining security in a push server 249 1998
 
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 100 2001
 
VLADIMIR MATENA (1)
2004/0158,549 Method and apparatus for online transaction processing 106 2004
 
KABUSHIKI KAISHA TOSHIBA (3)
6,081,833 Memory space management method, data transfer method, and computer device for distributed computer system 79 1996
7,373,426 Network system using name server with pseudo host name and pseudo IP address generation function 59 2003
2004/0267,747 Transaction processing system supporting concurrent accesses to hierarchical data by transactions 49 2004
 
MICRO-STAR INT'L CO., LTD. (1)
6,384,626 Programmable apparatus and method for programming a programmable device 71 2001
 
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 141 1998
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (30)
5,230,047 Method for balancing of distributed tree file structures in parallel computing systems to enable recovery after a failure 104 1990
5,251,206 Hybrid switching system for a communication node 74 1991
5,258,984 Method and means for distributed sparing in DASD arrays 124 1991
5,359,594 Power-saving full duplex nodal communications systems 66 1992
5,734,826 Variable cyclic redundancy coding method and apparatus for use in a multistage network 96 1992
5,596,709 Method and apparatus for recovering parity protected data 99 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 248 1995
5,680,621 System and method for domained incremental changes storage and retrieval 55 1995
5,870,563 Method and apparatus for optimizing message transmission 71 1995
5,799,305 Method of commitment in a distributed database transaction 155 1995
5,657,439 Distributed subsystem sparing 92 1995
5,805,578 Automatic reconfiguration of multipoint communication channels 135 1996
5,668,943 Virtual shared disks with application transparent recovery 197 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 114 1996
5,805,900 Method and apparatus for serializing resource access requests in a multisystem complex 74 1996
5,649,200 Dynamic rule-based version control system 352 1996
5,878,414 Constructing a transaction serialization order based on parallel or distributed database log files 70 1997
6,122,754 Method and system for data recovery using a distributed and scalable data structure 86 1998
6,334,168 Method and system for updating data in a data storage system 80 1999
6,502,174 Method and system for managing meta data 89 1999
6,907,011 Quiescent reconfiguration of a routing network 65 1999
6,895,482 Reordering and flushing commands in a computer memory subsystem 46 1999
6,917,942 System for dynamically evaluating locks in a distributed data storage system 62 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 109 2000
2003/0005,159 Method and system for generating and serving multilingual web pages 107 2001
6,920,494 Storage area network methods and apparatus with virtual SAN recognition 105 2001
2004/0133,670 Distributed notification and action mechanism for mirroring-related events 58 2003
7,440,966 Method and apparatus for file system snapshot persistence 89 2004
2006/0129,983 Apparatus, system, and method for sharing and accessing data by scopes 64 2004
7,546,412 Apparatus, system, and method for global metadata copy repair 50 2005
 
SCIENTIFIC RESEARCH CORPORATION (1)
7,177,295 Wireless routing protocol for ad-hoc networks 167 2002
 
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (15)
5,329,626 System for distributed computation processing includes dynamic assignment of predicates to define interdependencies 112 1990
5,481,699 Durable atomic storage update manager 87 1995
5,696,895 Fault tolerant multiple network servers 244 1995
5,774,643 Enhanced raid write hole protection and recovery 363 1995
6,055,564 Admission control where priority indicator is used to discriminate between messages 146 1998
6,671,704 Method and apparatus for handling failures of resource managers in a clustered environment 66 1999
6,453,389 Optimizing computer performance by using data compression principles to minimize a loss function 82 1999
6,742,020 System and method for managing data flow and measuring service in a storage network 96 2000
6,687,805 Method and system for logical-object-to-physical-location translation and physical separation of logical objects 47 2000
6,631,411 Apparatus and method for monitoring a chain of electronic transactions 53 2001
6,895,534 Systems and methods for providing automated diagnostic services for a cluster computer system 87 2001
2003/0149,750 Distributed storage array 82 2002
2004/0143,647 System and method for efficiently replicating a file among a plurality of recipients in a reliable manner 55 2003
7,152,182 Data redundancy system and method 66 2003
2007/0255,765 Systems and methods for file maintenance 42 2006
 
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 241 1998
6,526,478 Raid LUN creation using proportional disk mapping 107 2000
6,499,091 System and method for synchronizing data mirrored by storage subsystems 74 2000
 
CISCO TECHNOLOGY, INC. (2)
6,856,591 Method and system for high reliability cluster management 176 2000
2006/0155,831 Network topology based storage allocation for virtualization 50 2005
 
KIZNA CORPORATION (1)
2002/0078,180 Information collection server, information collection method, and recording medium 64 2001
 
RAINFINITY, INC. (2)
6,801,949 Distributed server cluster with graphical user interface 250 2000
7,546,354 Dynamic network based storage with high availability 63 2002
 
TRANSOFT TECHNOLOGY CORPORATION (1)
6,044,367 Distributed I/O store 238 1998
 
SONY UNITED KINGDOM LIMITED (2)
5,943,690 Data storage apparatus and method allocating sets of data 69 1997
2004/0003,053 System 61 2003
 
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 125 1996
5,822,790 Voting data prefetch engine 115 1997
6,014,669 Highly-available distributed cluster configuration database 310 1997
6,117,181 Synchronization mechanism for distributed hardware simulation 89 1998
6,021,414 Single transaction technique for a journaling file system of a computer operating system 110 1998
6,748,429 Method to dynamically change cluster or distributed system configuration 112 2000
2003/0061,491 System and method for the allocation of network storage 168 2001
7,313,614 Switching system 130 2001
6,907,520 Threshold-based load address prediction and new thread identification in a multithreaded microprocessor 61 2002
7,111,305 Facilitating event notification through use of an inverse mapping structure for subset determination 59 2002
2005/0044,197 Structured methodology and design patterns for web services 428 2003
 
LYNESS, STANLEY (1)
6,496,842 Navigating heirarchically organized information 149 1999
 
SAP AG (1)
2006/0206,536 Providing a snapshot of a subset of a file system 76 2006
 
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY (1)
2003/0014,391 Data distribution 111 2002
 
EMC CORPORATION (71)
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 211 1996
6,209,059 Method and apparatus for the on-line reconfiguration of the logical volumes of a data storage system 125 1997
6,154,854 Logical partitioning of a redundant array storage system 100 1998
6,385,626 Method and apparatus for identifying changes to a logical object based on changes to the logical object at physical level 103 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 154 1998
7,685,126 System and methods for providing a distributed file system utilizing metadata to track information about data stored throughout the system 130 2001
2003/0033,308 System and methods for providing a distributed file system utilizing metadata to track information about data stored throughout the system 201 2001
7,146,524 Systems and methods for providing a distributed file system incorporating a virtual hot spare 108 2002
2005/0066,095 Multi-threaded write interface and methods for increasing the single file read and write throughput of a file server 118 2003
2004/0153,479 Systems and methods for restriping files in a distributed file system 143 2003
2005/0138,195 Data streaming and backup systems having multiple concurrent read threads for improved small file performance 63 2003
7,318,134 Continuous data backup using distributed journaling 104 2004
7,346,720 Systems and methods for managing concurrent access requests to a shared resource 40 2005
7,386,675 Systems and methods for using excitement values to predict future access to resources 41 2005
7,551,572 Systems and methods for providing variable protection 39 2005
2007/0091,790 Systems and methods for providing variable protection 62 2005
2007/0094,269 Systems and methods for distributed system scanning 91 2005
2007/0094,277 Systems and methods for maintaining distributed data 63 2005
2007/0094,310 Systems and methods for accessing and updating distributed data 68 2005
2006/0095,438 Non-blocking commit protocol systems and methods 61 2005
2006/0101,062 Distributed system with asynchronous execution systems and methods 65 2005
2007/0171,919 Message batching with checkpoints systems and methods 85 2005
2007/0195,810 Systems and methods for providing a quiescing protocol 59 2006
7,756,898 Systems and methods for notifying listeners of events 39 2006
2007/0233,710 Systems and methods for notifying listeners of events 57 2006
2007/0168,351 Non-blocking commit protocol systems and methods 60 2006
2008/0031,238 Systems and methods for configuring multiple network interfaces 62 2006
7,509,524 Systems and methods for a distributed file system with data recovery 47 2006
2006/0277,432 Systems and methods for providing a distributed file system incorporating a virtual hot spare 85 2006
7,590,652 Systems and methods of reverse lookup 39 2006
7,676,691 Systems and methods for providing nonlinear journaling 44 2006
7,680,836 Systems and methods for a snapshot of data 46 2006
7,680,842 Systems and methods for a snapshot of data 45 2006
7,752,402 Systems and methods for allowing incremental journaling 42 2006
2008/0046,432 Systems and methods for a snapshot of data 74 2006
2008/0046,443 Systems and methods for providing nonlinear journaling 55 2006
2008/0046,444 Systems and methods for providing nonlinear journaling 56 2006
2008/0046,445 Systems and methods of reverse lookup 64 2006
2008/0046,475 Systems and methods for a snapshot of data 57 2006
2008/0046,476 Systems and methods for a snapshot of data 62 2006
2008/0046,667 Systems and methods for allowing incremental journaling 68 2006
2008/0059,541 Systems and methods for a snapshot of data 69 2006
2008/0126,365 Systems and methods for providing nonlinear journaling 56 2006
2008/0151,724 Systems and methods for managing unavailable storage devices 43 2006
2008/0155,191 Systems and methods for providing heterogeneous storage systems 62 2006
7,593,938 Systems and methods of directory entry encodings 41 2006
2008/0154,978 Systems and methods of directory entry encodings 57 2006
7,509,448 Systems and methods for managing semantic locks 59 2007
2008/0168,458 Systems and methods for managing semantic locks 62 2007
2008/0256,103 Systems and methods of providing possible value ranges 45 2007
2008/0256,537 Systems and methods of quota accounting 38 2007
2008/0256,545 Systems and methods of managing resource utilization on a threaded computer system 48 2007
7,743,033 Systems and methods for providing a distributed file system utilizing metadata to track information about data stored throughout the system 41 2007
2008/0021,907 Systems and methods for providing a distributed file system utilizing metadata to track information about data stored throughout the system 62 2007
2009/0055,399 Systems and methods for reading objects in a file system 41 2007
2009/0055,604 Systems and methods for portals into snapshot data 35 2007
2009/0055,607 Systems and methods for adaptive copy on write 61 2007
2009/0248,756 SYSTEMS AND METHODS FOR A READ ONLY MODE FOR A PORTION OF A STORAGE SYSTEM 41 2008
2009/0248,975 SYSTEMS AND METHODS FOR MANAGING STALLED STORAGE DEVICES 42 2008
2009/0249,013 SYSTEMS AND METHODS FOR MANAGING STALLED STORAGE DEVICES 40 2008
2008/0243,773 SYSTEMS AND METHODS FOR A DISTRIBUTED FILE SYSTEM WITH DATA RECOVERY 53 2008
2009/0210,880 SYSTEMS AND METHODS FOR MANAGING SEMANTIC LOCKS 37 2009
2009/0252,066 SYSTEMS AND METHODS FOR PROVIDING VARIABLE PROTECTION 37 2009
2009/0327,218 Systems and Methods of Reverse Lookup 38 2009
7,739,288 Systems and methods of directory entry encodings 39 2009
2010/0223,235 SYSTEMS AND METHODS FOR PROVIDING NONLINEAR JOURNALING 36 2010
2010/0161,556 SYSTEMS AND METHODS FOR A SNAPSHOT OF DATA 40 2010
2010/0161,557 SYSTEMS AND METHODS FOR A SNAPSHOT OF DATA 38 2010
2010/0185,592 Snapshot indexing 37 2010
2010/0235,413 SYSTEMS AND METHODS FOR PROVIDING A DISTRIBUTED FILE SYSTEM UTILIZING METADATA TO TRACK INFORMATION ABOUT DATA STORED THROUGHOUT THE SYSTEM 43 2010
2010/0241,632 SYSTEMS AND METHODS OF DIRECTORY ENTRY ENCODINGS 28 2010
 
INTEL CORPORATION (7)
6,353,823 Method and system for using associative metadata 207 1999
2002/0087,366 Tentative-hold-based protocol for distributed transaction processing 84 2000
7,181,746 Initialization, reconfiguration, and shut down of a module function 43 2001
7,240,235 Journaling technique for write transactions to mass storage 60 2002
6,934,878 Failure detection and failure handling in cluster controller networks 73 2002
7,257,257 Method and apparatus for differential, bandwidth-efficient and storage-efficient backups 86 2003
2006/0288,161 RAID power safe apparatus, systems, and methods 62 2005
 
MOSYS, INC. (1)
6,000,007 Caching in a multi-processor computer system 63 1998
 
SK TELECOM CO., LTD. (1)
2006/0129,631 Method for controlling a media message upload through a wireless communication network 65 2004
 
AB INITIO TECHNOLOGY LLC (1)
2001/0042,224 Continuous flow compute point based data processing 53 2000
 
HARRIS CORPORATION (1)
6,954,435 Determining quality of service (QoS) routing for mobile ad hoc networks 142 2002
 
EMULEX CORPORATION (1)
6,393,483 Method and apparatus for network interface card load balancing and port aggregation 163 1997
 
TEXAS INSTRUMENTS INCORPORATED (1)
6,397,311 System and method for defragmenting a file system 114 1995
 
SYMANTEC OPERATING CORPORATION (3)
7,631,066 System and method for preventing data corruption in computer system clusters 48 2002
7,228,299 System and method for performing file lookups based on tags 73 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 65 2003
 
NVIDIA CORPORATION (1)
7,386,697 Memory management for virtual address space with translation units of variable range size 49 2005
 
SYMANTEC CORPORATION (1)
6,108,759 Manipulation of partitions holding advanced file systems 123 1997
 
HITACHI INFORMATION & COIMMUNICATION ENGINEERING, LTD. (1)
5,548,724 File server system and file access control method of the same 283 1994
 
ITT MANUFACTURING ENTERPRISES, INC. (1)
7,184,421 Method and apparatus for on demand multicast and unicast using controlled flood multicast communications 135 2001
 
MICROSOFT CORPORATION (11)
5,806,065 Data system with distributed tree indexes and method for maintaining the indexes 178 1996
5,878,410 File system sort order indexes 178 1996
6,202,085 System and method for incremental change synchronization between multiple copies of data 205 1996
5,890,147 Scope testing of documents in a search engine using document to folder mapping 253 1997
6,463,442 Container independent data binding system 98 1998
6,279,007 Architecture for managing query friendly hierarchical values 188 1998
6,408,313 Dynamic memory allocation based on free memory size 82 1998
6,523,130 Storage system having error detection and recovery 118 1999
6,571,244 Run formation in large scale sorting using batched replacement selection 77 1999
6,546,443 Concurrency-safe reader-writer lock with time out support 120 1999
6,594,660 Share latch clearing 65 2000
 
NOKIA CORPORATION (1)
2006/0083,177 Listener mechanism in a distributed network system 55 2004
 
LOUDCLOUD, INC. (1)
2002/0158,900 Graphical user interfaces for network management automated provisioning environment 51 2001
 
SEACHANGE INTERNATIONAL, INC. (8)
5,862,312 Loosely coupled mass storage computer cluster 160 1995
5,996,089 Loosely coupled mass storage computer cluster 130 1997
6,321,345 Slow response in redundant arrays of inexpensive disks 87 1999
6,571,349 Loosely coupled mass storage computer cluster 71 1999
6,449,730 Loosely coupled mass storage computer cluster 102 2001
6,557,114 Loosely coupled mass storage computer cluster 69 2001
6,567,926 Loosely coupled mass storage computer cluster 65 2001
6,574,745 Loosely coupled mass storage computer cluster 65 2002
 
SYBASE, INC. (1)
7,249,118 Database system and methods 122 2002
 
VIA TECHNOLOGIES, INC. (1)
6,502,172 Memory accessing and controlling unit 61 2002
 
SRI INTERNATIONAL (1)
6,922,696 Lattice-based security classification system and method 73 2000
 
DOT HILL SYSTEMS CORPORATION (1)
6,990,611 Recovering data from arrays of storage devices after certain failures 52 2000
 
NORTHWESTERN UNIVERSITY (1)
5,694,593 Distributed computer database system and method 164 1994
 
International Computers Limited (2)
5,459,871 Detection and resolution of resource deadlocks in a distributed data processing system 104 1993
5,884,303 Parallel searching technique 97 1997
 
MOTOROLA SOLUTIONS, INC. (1)
2003/0109,253 Digital communications system 63 2002
 
PORTAUTHORITY TECHNOLOGIES, INC. (1)
2004/0189,682 Method and a system for embedding textual forensic information 69 2003
 
TWITTER, INC. (2)
7,069,320 Reconfiguring a network by utilizing a predetermined length quiescent state 65 1999
2004/0240,444 System and method for managing transactions in a messaging system 44 2003
 
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 196 1996
 
NEC CORPORATION (1)
2002/0038,436 Disk array apparatus, error control method for the same apparatus, and control program for the same method 74 2001
 
SEAGATE TECHNOLOGY LLC (1)
7,043,567 Method and apparatus for determining the order of execution of queued commands in a data storage system 47 2002
 
MICROSOFT TECHNOLOGY LICENSING, LLC (2)
2005/0289,188 Allocation locks and their use 62 2004
2006/0230,411 Resource accessing with locking 68 2005
 
Delphi Data, a division of Sparks Industries, Inc. (1)
5,212,784 Automated concurrent data backup system 264 1990
 
F5 NETWORKS, INC. (1)
6,405,219 Method and system for automatically updating the version of a set of files stored on content servers 149 1999
 
IBM INTERNATIONAL GROUP BV (1)
7,577,667 Programmable streaming data processor for database appliance having multiple processing unit groups 72 2003
 
PLENUS TECHNOLOGY LTD. (1)
6,594,655 Wildcards in radix- search tree structures 78 2001
 
IDENTRUST, INC. (1)
2002/0029,200 System and method for providing certificate validation and other services 89 2001
 
GOOGLE INC. (5)
5,933,834 System and method for re-striping a set of objects onto an exploded array of storage units in a computer system 104 1997
5,966,707 Method for managing a plurality of data processes residing in heterogeneous data repositories 226 1997
6,567,894 Method and apparatus to prefetch sequential pages in a multi-stream environment 70 1999
7,124,264 Storage system, control method for storage system, and storage control unit 58 2004
2008/0044,016 Detecting duplicate and near-duplicate files 76 2006
 
Storage Technology Corporation (4)
5,403,639 File server having snapshot application data groups 494 1992
6,732,125 Self archiving log structured volume with intrinsic data protection 247 2000
6,990,604 Virtual storage status coalescing with a plurality of physical storage devices 57 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 100 2002
 
Konica Corporation (1)
4,464,279 Magnetic recording medium 36 1982
 
OPENTV, INC. (1)
2003/0163,726 Method and apparatus for providing a hierarchical security profile object 62 2003
 
GRAVIC, INC. (1)
7,113,938 Method of increasing system availability by splitting a system 38 2003
 
CRAY INC. (1)
7,558,910 Detecting access to a memory location in a multithreaded environment 45 2003
 
SILICON GRAPHICS INTERNATIONAL CORP. (1)
7,007,097 Method and system for covering multiple resourcces with a single credit in a computer system 56 2001
 
ATEX PUBLISHING SYSTEMS CORPORATION (1)
5,181,162 Document management and production system 470 1989
 
NETAPP, INC. (3)
6,594,744 Managing a snapshot volume or one or more checkpoint volumes with multiple point-in-time images in a single repository 158 2000
7,043,485 System and method for storage of snapshot metadata in a remote file 122 2002
7,533,298 Write journaling using battery backed cache 56 2005
 
THOMSON LICENSING (1)
2004/0078,812 Method and apparatus for acquiring media services available from content aggregators 124 2003
 
MASCOTECH, INC. (1)
6,662,184 Lock-free wild card search data structure and method 101 2000
 
Data Equation Limited (1)
2008/0005,145 Data processing 56 2007
 
ZAMBEEL, INC. (1)
2004/0199,812 Fault tolerance using logical checkpointing in computing systems 76 2001
 
DELL PRODUCTS L.P. (1)
6,598,174 Method and apparatus for storage unit replacement in non-redundant array 206 2000
 
RPX CLEARINGHOUSE LLC (1)
2003/0009,591 Apparatus and method for managing internet resource requests 38 2001
 
MAXTOR CORPORATION (1)
5,548,795 Method for determining command execution dependencies within command queue reordering process 89 1994
 
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 142 1995
 
CGI TECHNOLOGIES AND SOLUTIONS INC. (1)
6,415,259 Automatic work progress tracking and optimizing engine for a telecommunications customer care and billing system 196 1999
 
INTELLIGENT INTELLECTUAL PROPERTY HOLDINGS 2 LLC (1)
* 2008/0168,304 APPARATUS, SYSTEM, AND METHOD FOR DATA STORAGE USING PROGRESSIVE RAID 61 2007
 
ALCATEL (1)
6,549,513 Method and apparatus for fast distributed restoration of a communication network 109 1999
 
NETWORK APPLIANCE, INC. (6)
5,163,131 Parallel I/O network file server architecture 897 1989
6,038,570 Method for allocating files in a file system integrated with a RAID disk sub-system 358 1995
6,081,883 Processing system with dynamically allocatable buffer memory 170 1997
6,138,126 Method for allocating files in a file system integrated with a raid disk sub-system 181 1999
7,225,204 System and method for asynchronous mirroring of snapshots at a destination using a purgatory directory and inode mapping 141 2002
2007/0038,887 Remote disaster recovery and data migration using virtual appliance migration 47 2006
 
VERANO (1)
6,055,543 File wrapper containing cataloging information for content searching across multiple platforms 215 1997
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (1)
2006/0074,922 File management device, file management method, file management program and recording medium 63 2003
 
UNIVERSITY OF SOUTHERN CALIFORNIA (1)
2003/0161,302 Continuous media system 52 2003
 
PHILIPS ELECTRONICS NORTH AMERICA CORPORATION (1)
2002/0078,161 UPnP enabling device for heterogeneous networks of slave devices 101 2000
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
EMC CORPORATION (14)
8,238,350 Message batching with checkpoints systems and methods 2 2005
8,140,623 Non-blocking commit protocol systems and methods 0 2006
8,286,029 Systems and methods for managing unavailable storage devices 4 2006
8,966,080 Systems and methods of managing resource utilization on a threaded computer system 0 2007
8,082,379 Systems and methods for managing semantic locks 8 2009
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 5 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
 
FUJITSU LIMITED (1)
* 8,667,186 IO control method and program and computer 0 2012
* Cited By Examiner

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Jan 19, 2015
7.5 Year Payment $3600.00 $1800.00 $900.00 Jan 19, 2019
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jan 19, 2023
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00