Lee Shawn Nelson

US Patent:

6857057, Feb 15, 2005

Filed:

Oct 3, 2002

Appl. No.:

10/264661

Inventors:

Lee L. Nelson - Boise ID, US
Rodger Daniels - Boise ID, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

G06F012/00
G06F012/08

US Classification:

711203, 711 6, 711162, 711206

Abstract:

Virtual storage systems and virtual storage system operational methods are described. According to one aspect, a virtual storage system includes a virtual storage space including a plurality of virtual storage locations, a physical storage space including a plurality of physical storage locations configured to store data, a memory configured to store a plurality of activated pointers which associate a plurality of virtual storage locations with a plurality of the physical storage locations, and a controller configured to deactivate at least some of the activated pointers including extracting the deactivated pointers from the memory, to access a request pertaining to selected data associated with at least one of the deactivated pointers, to activate the deactivated pointers including providing the deactivated pointers in the memory providing reactivated pointers, and to modify at least one of the reactivated pointers responsive to the request.

US Patent:

6996582, Feb 7, 2006

Filed:

Oct 3, 2002

Appl. No.:

10/264525

Inventors:

Rodger Daniels - Boise ID, US
Lee L. Nelson - Boise ID, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

G06F 17/30
G06F 12/00

US Classification:

707200, 711 6

Abstract:

Virtual storage systems and virtual storage system operational methods are described. According to one aspect, a virtual storage system includes a physical storage space configured to store data, a virtual storage space adapted to provide a representation of data stored within the physical storage space to a host, a memory configured to store a plurality of pointers utilized to implement addressing intermediate the physical storage space and the virtual storage space, and a controller configured to extract selected ones of the pointers from the memory and to provide the selected pointers in another storage location different than the memory at a first moment in time and to extract the selected pointers from the another storage location and to provide the selected pointers in the memory at a second moment in time subsequent to the first moment in time.

US Patent:

7089395, Aug 8, 2006

Filed:

Oct 3, 2002

Appl. No.:

10/264957

Inventors:

Michael B. Jacobson - Boise ID, US
Lee L. Nelson - Boise ID, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

G06F 12/16
G06F 12/10

US Classification:

711202, 711 6, 711161, 707204

Abstract:

Computer systems, virtual storage systems, and virtual storage system operational methods are described. According to one aspect, a computer system includes a virtual storage system including a physical storage space, a virtual storage space, and a non-guaranteed available capacity utilized to generate a non-guaranteed snapshot volumes of virtual storage volumes of the virtual storage space, wherein the virtual storage system is configured to monitor the non-guaranteed available capacity and to present a report regarding the non-guaranteed available capacity responsive to the monitoring and a host configured to execute an application wherein generation of a non-guaranteed snapshot volume of at least one of the virtual storage volumes is desired, to access the report to determine the non-guaranteed available capacity, and to issue a request to the virtual storage system to generate the at least one non-guaranteed snapshot volume of the at least one virtual storage volume responsive to the accessing.

US Patent:

7305530, Dec 4, 2007

Filed:

Nov 2, 2004

Appl. No.:

10/979716

Inventors:

Rodger Daniels - Boise ID, US
Lee Nelson - Boise ID, US
Andrew Dallmann - Meridian ID, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

G06F 12/00

US Classification:

711162, 711112, 711147

Abstract:

Exemplary storage network architectures, data architectures, and methods for creating and using snapdifference files in storage networks are described. One exemplary method may be implemented in a processor in a storage network. The method comprises receiving a request to execute a snapclone operation; generating, in response to the received service request, a snapclone copy of a source disk volume contemporaneous with the generation of the snapclone file, opening a first snapdifference file; and recording I/O operations to the source disk volume in the snapdifference file. The methods described herein may be embodied as logic instructions on a computer-readable medium.

US Patent:

7467268, Dec 16, 2008

Filed:

Apr 14, 2006

Appl. No.:

11/404240

Inventors:

Aaron Lindemann - Boise ID, US
Xia Xu - Boise ID, US
Rodger Daniels - Boise ID, US
Lee Nelson - Boise ID, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

G06F 12/04

US Classification:

711162, 711113

Abstract:

Exemplary storage network architectures, data architectures, and methods for data restore operation are disclosed. In one embodiment, a storage device comprises a processor, a memory module communicatively connected to the processor, and logic instructions in the memory module which, when executed by the processor, configure the processor to receive a signal that identifies a source volume and a first target snapshot that represents a point in time copy of the source volume, update metadata to define an restore relationship between the first target snapshot and the source volume, execute a background copy process between the first target snapshot and the source volume, and manage input/output operations during the background copy process to permit input/output operations to the source volume during the background copy process.

US Patent:

7472307, Dec 30, 2008

Filed:

Nov 2, 2004

Appl. No.:

10/979730

Inventors:

Rodger Daniels - Boise ID, US
Lee Nelson - Boise ID, US
Andrew Dallmann - Meridian ID, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

G06F 11/00

US Classification:

714 7, 714 5

Abstract:

Exemplary storage network architectures, data architectures, and methods for creating and using snapdifference files in storage networks are described. One exemplary method may be implemented in a processor in a storage network. The method comprises detecting a failure in a source volume, and in response to the failure: terminating communication with one or more applications that generate I/O requests to the source volume; refreshing the source volume; copying a backup data set to the source volume, and while the backup data set is being copied: activating a new snapdifference file; restarting communication with one or more applications that generate I/O requests to the source volume; and recording I/O operations to the source volume in the snapdifference file.

US Patent:

8219777, Jul 10, 2012

Filed:

Oct 3, 2002

Appl. No.:

10/264659

Inventors:

Michael Jacobson - Boise ID, US
Lee L. Nelson - Boise ID, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

G06F 12/00

US Classification:

711203, 711161, 711162

Abstract:

Virtual storage systems, virtual storage methods and methods of over committing a virtual RAID storage system are described. According to one aspect, a virtual storage system includes a virtual storage space, a physical storage space, a mapping system configured to associate a plurality of addresses of the virtual storage space with respective addresses of the physical storage space and a controller configured to automatically remove a portion of the mapping system according to a prioritization protocol which specifies removal of portions of the mapping system according to an order.

US Patent:

20050240584, Oct 27, 2005

Filed:

Apr 21, 2004

Appl. No.:

10/829715

Inventors:

Brian Patterson - Boise ID, US
Lee Nelson - Boise ID, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

G06F017/30

US Classification:

707008000

Abstract:

A method of protecting data includes distributing data across a plurality of snapshots of a parent logical unit (LUN) when data of the parent LUN diverges from the snapshots.