Susan L Larson

US Patent:

8046552, Oct 25, 2011

Filed:

Sep 30, 2008

Appl. No.:

12/242087

Inventors:

Susan L. Larson - Meridian ID, US

Assignee:

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

International Classification:

G06F 12/16

US Classification:

711162, 711111, 711156, 711161, 711165, 707640

Abstract:

Embodiments include methods, apparatus, and systems for tracking metadata changes during copying in a storage system. One embodiment includes a method that uses a bitmap and two fences to track changes to metadata while a copy of the metadata is being transferred from a source disk array to a destination disk array.

US Patent:

20100049931, Feb 25, 2010

Filed:

Oct 1, 2008

Appl. No.:

12/243920

Inventors:

Michael B. Jacobson - Boise ID, US
Susan L. Larson - Meridian ID, US
Brian Patterson - Boise ID, US

International Classification:

G06F 12/16
G06F 12/00
G06F 11/14
G06F 12/02

US Classification:

711162, 711112, 711202, 707206, 714 5, 711E12001, 711E12103, 707E17044, 714E11113

Abstract:

In one embodiment, a storage controller comprises a first port that provides an interface to a host computer, a second port that provides an interface to a storage device, a processor, and a memory module communicatively connected to the processor and comprising logic instructions stored on a computer readable storage medium which, when executed by the processor, configure the processor to copy a logical disk mapping from a first storage array managed by a source storage controller to a second storage array managed by a destination storage controller by performing operations comprising obtaining, in the source storage controller, an object identifier listing for use with the logical disk mappings in the destination storage controller, copying, in the source storage controller, contents of logical disk mappings for use in the first storage array from a first storage container to a second storage container, and replacing, in the source storage controller, object identifiers associated with the logical disk mappings in the first storage array with object identifiers from the object identifier listing received in the first storage controller.

US Patent:

55487122, Aug 20, 1996

Filed:

Jan 19, 1995

Appl. No.:

8/376179

Inventors:

Susan L. Larson - Kuna ID
Douglas L. Voigt - Boise ID
Steven D. Messinger - Boise ID
Michael B. Jacobson - Boise ID

Assignee:

Hewlett-Packard Company - Palo Alto CA

International Classification:

G01R 3128
G06F 1100

US Classification:

39518205

Abstract:

A disk array data storage system has plural sets of storage disks connected to multiple corresponding I/O buses. Individual storage disks can be independently and asynchronously attached to or detached from corresponding interfacing slots of the I/O buses. The system has physical device drivers which represent the storage disks with respect to their connections to the interfacing slots of the I/O buses and physical device managers which represent the data kept on the storage disks. Interface drivers are provided to manage I/O transfers through corresponding I/O buses. When a particular storage disk is attached to or detached from an interfacing slot of an I/O bus, the interface driver corresponding to the I/O bus freezes all I/O requests that come from the physical device drivers that represent the storage disks in the set connected to the I/O bus. A configuration manager determines which interfacing slot the particular storage disk has been attached to or detached from. If the particular storage disk has been detached from the I/O bus, the configuration manager eliminates the physical device driver that represents the detached storage disk.