Jeffrey C Alexander

US Patent:

6766418, Jul 20, 2004

Filed:

Apr 30, 2001

Appl. No.:

09/845385

Inventors:

Jeffrey L. Alexander - Watertown MA
Paul M. Bober - Lexington MA
Rui Liang - Framingham MA

Assignee:

EMC Corporation - Hopkinton MA

International Classification:

G06F 1200

US Classification:

711129, 711119, 711 3, 711 4

Abstract:

Mechanisms and techniques disclose a system that provides access to data using a two part cache. The system receives a data access request containing a first data reference, such as an open systems request to access data. The system then obtains a history cache entry from a history cache based on the first data reference and obtains a partition cache entry from a partition cache based on the first data reference. Cache entries contain mappings between open systems reference locations and non-open systems references to locations in the data to be accessed. The system then performs a data access operation as specified by the data access request using a second data reference based upon either the history cache entry or the partition cache entry. Upon performance of the data access operation, the system then updates the history and partition caches with new cache entries and can resize the partition and history caches as needed.

US Patent:

6889292, May 3, 2005

Filed:

Jun 24, 2004

Appl. No.:

10/875466

Inventors:

Jeffrey L. Alexander - Watertown MA, US
Paul M. Bober - Lexington MA, US
Rui Liang - Framingham MA, US

Assignee:

EMC Corporation - Hopkinton MA

International Classification:

G06F012/00

US Classification:

711129, 711 3, 711 4, 711 19

Abstract:

Mechanisms and techniques disclose a system that provides access to data using a two part cache. The system receives a data access request containing a first data reference, such as an open systems request to access data. The system then obtains a history cache entry from a history cache based on the first data reference and obtains a partition cache entry from a partition cache based on the first data reference. Cache entries contain mappings between open systems reference locations and non-open systems references to locations in the data to be accessed. The system then performs a data access operation as specified by the data access request using a second data reference based upon either the history cache entry or the partition cache entry. Upon performance of the data access operation, the system then updates the history and partition caches with new cache entries and can resize the partition and history caches as needed.

US Patent:

6938039, Aug 30, 2005

Filed:

Jun 30, 2000

Appl. No.:

09/608469

Inventors:

Paul M. Bober - Lexington MA, US
Uresh Vahalia - Waban MA, US
Aju John - Northborough MA, US
Jeffrey L. Alexander - Watertown MA, US
Uday K. Gupta - Westford MA, US

Assignee:

EMC Corporation - Hopkinton MA

International Classification:

G06F017/30

US Classification:

707 8, 707201

Abstract:

A file system is migrated from a source file server to a target file server in a data network while permitting clients to have concurrent read/write access to the file system. The target file server issues directory read requests and file read requests to the source file server in accordance with a network file access protocol to transfer the file system from the source file server to the target file server. Concurrent with the transfer of the file system from the source file server to the target file server, the target file server responds to client read/write requests for access to the file system. In a preferred embodiment, the target file server maintains a hierarchy of on-line nodes off-line nodes. The online nodes represent file system objects that have been completely migrated, and the offline nodes representing file system objects that have not been completely migrated. The target file server executes a background process that walks through the hierarchy in order to migrate the objects of the offline nodes.

US Patent:

7877393, Jan 25, 2011

Filed:

Jul 19, 2007

Appl. No.:

11/780135

Inventors:

Stephen J. Green - Burlington MA, US
Jeffrey L. Alexander - Arlington MA, US
Paul B. Lamere - Nashua NH, US

Assignee:

Oracle America, Inc. - Redwood City CA

International Classification:

G06F 7/00

US Classification:

707749, 707750

Abstract:

A method for accessing a file system that includes creating a document index for an active document, identifying a similarity score for each of a plurality of stored documents to generate a list of similar documents, wherein the similarity score is computed by comparing the document index for the active document with a search index for the plurality of stored documents, and displaying the list of similar documents in a file system interface.

US Patent:

7945669, May 17, 2011

Filed:

Oct 30, 2002

Appl. No.:

10/283908

Inventors:

Paul M. Bober - Lexington MA, US
Jason D. Lindholm - Cambridge MA, US
Jeffrey L. Alexander - Watertown MA, US
Sheldon Lowenthal - Lexington MA, US

Assignee:

EMC Corporation - Hopkinton MA

International Classification:

G06F 15/173
G06F 15/16

US Classification:

709226, 709217, 709229

Abstract:

A method and apparatus for automatically provisioning at least a portion of a computer system to meet a specification provided in a provisioning request. In one embodiment, the provisioning includes provisioning at least one resource from each of at least one host computer, at least one storage system, and at least one connectivity resource that connects the at least one host computer to the at least one storage system. In another embodiment, the provisioning includes selecting and configuring at least one logical volume of storage and configuring the computer system to provide access to the selected volume. In another aspect, a computer-readable provisioning transaction is created to provision the computer system, and a computer-readable undo transaction is created to undo it. In a further embodiment, an existing computer system is reverse engineered to create a specification that is modified to create the specification in the provisioning request.

US Patent:

7949660, May 24, 2011

Filed:

Sep 10, 2009

Appl. No.:

12/557403

Inventors:

Stephen J. Green - Wakefield MA, US
Paul B. Lamere - Manchester NH, US
Jeffrey L. Alexander - Arlington MA, US
Karl R. Haberl - Tyngsboro MA, US

Assignee:

Oracle America, Inc. - Redwood City CA

International Classification:

G06F 17/30

US Classification:

707737, 709224

Abstract:

A method for searching and resource discovery in a distributed enterprise (DE), the method including: generating a first classifier for a first repository in the DE; generating a second classifier for a second repository in the DE, where the second classifier has a vector element identifying a location of the second repository; submitting a copy of the second classifier to a web server of the first repository; obtaining a resource at the first repository after submitting the copy of the second classifier; matching the resource to the copy of a second classifier; sending a copy of the resource to the second repository using the vector element; and storing the copy of the resource in the second repository.

US Patent:

8001122, Aug 16, 2011

Filed:

Dec 12, 2007

Appl. No.:

11/954459

Inventors:

Stephen Joseph Green - Burlington MA, US
Jeffrey H. Alexander - Arlington MA, US
Bernard Horan - Wivenhoe, GB

Assignee:

Sun Microsystems, Inc. - Santa Clara CA

International Classification:

G06F 17/30

US Classification:

707736, 707E17014

Abstract:

A resource analyzer selects a resource (e. g. , document) from a grouping of resources. The grouping of resources can be any type of social tagging system used for information retrieval. The selected resource has an assigned uncontrolled tag and an assigned controlled tag. The controlled tag is a term derived from a controlled vocabulary of terms. Having selected the resource for analyzing, the resource analyzer identifies a first set of resources in the grouping of resources having also been assigned a same value as the uncontrolled tag as the selected resource. Similarly, the resource analyzer identifies a second set of resources in the grouping of resources having also been assigned a same value as the controlled tag. With this information, the resource analyzer then produces a comparison result indicative of a similarity between the first set of resources and the second set of resources.

US Patent:

8015193, Sep 6, 2011

Filed:

Dec 14, 2010

Appl. No.:

12/968180

Inventors:

Stephen J. Green - Burlington MA, US
Jeffrey L. Alexander - Arlington MA, US
Paul B. Lamere - Nashua NH, US

Assignee:

Oracle America, Inc. - Redwood City CA

International Classification:

G07F 7/00

US Classification:

707749, 707750

Abstract:

A method for accessing a file system including computing a first numerical similarity score for a first stored document and a second numerical similarity score for a second stored document by comparing a plurality of weighted active terms with a plurality of weighted indexed terms, determining a document order of the first stored document followed by the second stored document based on the first numerical similarity score exceeding the second numerical similarity score, generating a list of similar documents including the first stored document followed by the second stored document based on the document order, and displaying, in a file system interface and on the computer display, the list of similar documents while an active document is open in an active document interface.