Michael D Rowan

US Patent:

7272666, Sep 18, 2007

Filed:

Feb 13, 2004

Appl. No.:

10/778561

Inventors:

Michael T. Rowan - Amesbury MA, US
Kevin F. Rodgers - Derry NH, US

Assignee:

Symantec Operating Corporation - Cupertino CA

International Classification:

G06F 3/00

US Classification:

710 5, 711162, 711167, 714162, 710 20

Abstract:

A storage management device includes a plurality of I/O processing modules for accessing units of storage by specifying an address and a time. The I/O processing modules receive I/O requests, classify I/O requests, and extract I/O control information associated with the I/O requests. The extracted I/O control information is processed and at least one physical store is communicated with in response to the processed I/O control information.

US Patent:

7287133, Oct 23, 2007

Filed:

Aug 24, 2004

Appl. No.:

10/924669

Inventors:

Michael Rowan - Amesbury MA, US
Kevin Rodgers - Derry NH, US

Assignee:

Symantec Operating Corporation - Cupertino CA

International Classification:

G06F 12/00

US Classification:

711156, 711155

Abstract:

A storage management device can receive a request for a modification history for a location within a data store, determine one or more times at which at least a portion of data stored at the location was modified, and transmit the one or more determined times.

US Patent:

7577806, Aug 18, 2009

Filed:

Sep 23, 2003

Appl. No.:

10/668833

Inventors:

Michael T. Rowan - Amesbury MA, US
Kevin F. Rodgers - Derry NH, US

Assignee:

Symantec Operating Corporation - Cupertino CA

International Classification:

G06F 12/00

US Classification:

711162, 711114, 711156, 711161, 711170

Abstract:

A method, apparatus, and system for accessing units of storage that depends at least in part on an address of the unit of storage and the time that data was written to the unit of storage.

US Patent:

7577807, Aug 18, 2009

Filed:

Aug 24, 2004

Appl. No.:

10/924652

Inventors:

Michael Rowan - Amesbury MA, US
Kevin Rodgers - Derry NH, US

Assignee:

Symantec Operating Corporation - Cupertino CA

International Classification:

G06F 12/00

US Classification:

711162, 711114, 711156, 711161, 711170

Abstract:

A storage management device receives a request to restore a portion of a data store to its content at a specified past time, which is selected from a substantially continuous time interval. In response to the received request, the storage management device stores in the portion of the data store content that was stored in the portion of the data store at the specified past time and that was overwritten since the specified past time.

US Patent:

7584337, Sep 1, 2009

Filed:

Feb 13, 2004

Appl. No.:

10/778436

Inventors:

Michael T. Rowan - Amesbury MA, US
Kevin F. Rodgers - Derry NH, US

Assignee:

Symantec Operating Corporation - Cupertino CA

International Classification:

G06F 12/00

US Classification:

711162, 711114, 711156, 711161, 711170

Abstract:

A method, apparatus, and system for accessing units of storage that depends at least in part on an address of the unit of storage and the time that data was written to the unit of storage.

US Patent:

7725667, May 25, 2010

Filed:

Mar 12, 2004

Appl. No.:

10/799428

Inventors:

Michael T. Rowan - Amesbury MA, US
Kevin F. Rodgers - Derry NH, US

Assignee:

Symantec Operating Corporation - Cupertino CA

International Classification:

G06F 12/00

US Classification:

711162, 711161, 711E12103, 714 6, 714 25

Abstract:

A method for identifying a time at which first data was written to a data store. A data store is configured to respond to data requests made to the data store with the data in the data store at a first time in the past. The method can be used to identify a time, for example, at which a data store was corrupted.

US Patent:

7725760, May 25, 2010

Filed:

Aug 24, 2004

Appl. No.:

10/924646

Inventors:

Michael Rowan - Amesbury MA, US
Kevin Rodgers - Derry NH, US
Jeff Darcy - Lexington MA, US

Assignee:

Symantec Operating Corporation - Cupertino CA

International Classification:

G06F 11/00
G06F 3/00

US Classification:

714 5, 710 5, 710 52, 710 74, 714 6, 714 18, 714 19, 700 28, 700 32

Abstract:

In a data storage system, a storage management device includes at least a target mode driver, a data classifier in communication with the target mode driver, a plurality of storage buffers in communication with the target mode driver, a plurality of I/O managers in communication with the data classifier, and a physical store interface in communication with the plurality of I/O managers and with the plurality of storage buffers.

US Patent:

7904428, Mar 8, 2011

Filed:

Aug 24, 2004

Appl. No.:

10/924668

Inventors:

Robert Perry - Leominster MA, US
Ron Passerini - Somerville MA, US
Michael Rowan - Amesbury MA, US

Assignee:

Symantec Corporation - Mountain View CA

International Classification:

G06F 7/00
G06F 17/00

US Classification:

707677, 707686

Abstract:

A storage management device records write requests that are directed to a data store. In one embodiment, the storage management device records a plurality of write request entries, each one of which includes information relating to a write request, in at least one first database table, and maintains, for each first database table, at least one record in a second database table. The one or more records in the second database table include data representing the effects of the write requests on a state of at least one portion of the data store. In one such embodiment, each time that one write request entry is recorded in one first database table, the storage management device updates at least one record in the second database table.