1
Yikang Xu, Uresh K Vahalia, Xiaoye Jiang, Uday Gupta, Percy Tzelnic: File server system using file system storage, data movers, and an exchange of meta data among data movers for file locking and direct access to shared file systems. EMC Corporation, Howrey Simon Arnold & White, November 27, 2001: US06324581 (824 worldwide citation)

A plurality of data mover computers control access to respective file systems in data storage. A network client serviced by any of the data movers can access each of the file systems. If a data mover receives a client request for access to a file in a file system to which access is controlled by ano ...


2
Robert N Crockett, Ronald M Kern, William F Micka: Software directed microcode state save for distributed storage controller. International Business Machines Corporation, F E Anderson, R M Sullivan, April 8, 1997: US05619644 (564 worldwide citation)

A storage system improves error debugging by directing distributed system components associated with an error condition to temporarily suspend data processing for collecting failure information. The collected failure information is correlated for later analysis according to an issued diagnostic stat ...


3
Uresh K Vahalia, Uday Gupta, Betti Porat, Percy Tzelnic: Network file server sharing local caches of file access information in data processors assigned to respective file systems. EMC Corporation, John M Gunther Esq, William R Clark Esq, February 20, 2001: US06192408 (281 worldwide citation)

A network file server includes a first set of data processors for receiving requests from clients, and a second set of data processors for accessing read-write file systems. A respective data processor in the second set is assigned to each file system for exclusive management of read and write locks ...


4
Percy Tzelnic, Uresh K Vahalia, Dennis P J Ting, Uday Gupta: Network file server using a cached disk array storing a network file directory including file locking information and data mover computers each having file system software for shared read-write file access. EMC Corporation, Arnold White & Durkee, September 7, 1999: US05948062 (240 worldwide citation)

For network file access, a plurality of data mover computers are linked to a cached disk array. Read-write files stored in the cached disk array are accessible to network clients through more than one of the data mover computers so that the data mover computers are not a bottleneck to file access. T ...


5
Uresh K Vahalia, Uday Gupta, Betti Porat, Percy Tzelnic: File server having a file system cache and protocol for truly safe asynchronous writes. EMC Corporation, Arnold White & Durkee, April 6, 1999: US05893140 (208 worldwide citation)

A conventional network file server has a file system that permits file attributes and file data to be written in any order. The conventional network file server may also support an asynchronous write protocol, in which file attributes and file data need not be written to disk storage until a client ...


6
Susan Kay Candelaria, Vernon John Legvold, Warren Keith Stanley: Cache queue entry linking for DASD record updates. International Business Machines Corporation, F E Anderson, R M Sullivan, October 28, 1997: US05682513 (208 worldwide citation)

A data storage system provides disaster recovery capability by asynchronously transmitting record updates to a secondary site in sequence consistent order. Such record updates are stored at a primary site in a cache memory of a storage controller. A circular queue is created having a head pointer fo ...


7
Xiaoye Jiang, Uresh K Vahalia, Uday Gupta, Percy Tzelnic: File server system using connection-oriented protocol and sharing data sets among data movers. EMC Corporation, Howrey Simon Arnold & White, September 17, 2002: US06453354 (208 worldwide citation)

A first data mover computer services data access requests from a network client, and a second data mover computer is coupled to the first data mover computer for servicing data access requests from the first data mover computer. The first data mover computer uses a connection-oriented protocol to ob ...


8
Paul Ignatius, Anand Prahlad, Varghese Devassy, Mahesh Tyagarajan, Robert Wu, Shankar R Iyer: High speed data transfer mechanism. CommVault Systems, Knobbe Martens Olson & Bear, April 24, 2007: US07209972 (176 worldwide citation)

A storage and data management system establishes a data transfer pipeline between an application and a storage media using a source data mover and a destination data mover. The data movers are modular software entities which compartmentalize the differences between operating systems and media types. ...


9
Philippe Armangau, Scott R Dunham: Computer data storage backup with tape overflow control of disk caching of backup data stream. EMC Corporation, Howrey Simon Arnold & White, April 15, 2003: US06549992 (148 worldwide citation)

A data storage system is constructed to rapidly respond to a backup request by streaming backup data from primary storage to tape. It is desirable to permit the data to be removed from the primary storage at a faster rate than it can be written to tape. The backup data is buffered in a memory buffer ...


10
Akira Jippo: Data transfer control system between high speed main memory and input/output processor with a data mover. NEC Corporation, Foley & Lardner, April 5, 1994: US05301351 (146 worldwide citation)

In a data processing method of this invention, data having an amount of a designated total data transfer length is transferred from a data buffer in a data mover to a designated start address of a control memory at a data transfer rate of a control data transfer control unit. Data having an amount o ...