Douglas M Cameron

US Patent:

7032093, Apr 18, 2006

Filed:

Aug 6, 2003

Appl. No.:

10/636145

Inventors:

Douglas J. Cameron - Santa Cruz CA, US

Assignee:

3PARdata, Inc. - Fremont CA

International Classification:

G06F 12/02

US Classification:

711170, 711148, 711153, 711147, 711 6, 711 4, 711173

Abstract:

In one embodiment of the invention, a virtual volume is divided into “filled” and “empty” virtual volume (VV) regions. Empty VV regions are mapped to a special zero logical disk that does not consist of any physical disk regions. When a host writes to an empty VV region, a logical disk (LD) region is allocated to the empty VV region so the formerly empty VV region becomes a filled VV region mapped to the allocated LD region. If there are no LD regions available, a new logical disk is created. Additional physical storage can be added to the storage server to create new logical disks as the use of the virtual volume grows. Physical allocation warning points and limits allow the system administrator to be alerted to and to control physical allocation for each individual VV and the set of VVs drawing from the same data allocation control structure (DC).

US Patent:

20100071259, Mar 25, 2010

Filed:

Aug 18, 2009

Appl. No.:

12/543412

Inventors:

Zhihao Hu - Castro Valley CA, US
Grace J. Lee - San Francisco CA, US
Douglas C. Cameron - Plymouth MN, US

Assignee:

LS9, Inc. - South San Francisco CA

International Classification:

C10L 1/19
C12M 1/00

US Classification:

44388, 4352891

Abstract:

Disclosed herein are various embodiments regarding the production of mixed fatty esters. Disclosed herein are various embodiments regarding the use of mixed alcohol compositions for the production of fatty esters.

US Patent:

20130290627, Oct 31, 2013

Filed:

Apr 30, 2012

Appl. No.:

13/459903

Inventors:

Siamak Nazari - Mountain View CA, US
Ming Ma - Redmond WA, US
Douglas James Cameron - Woodinville WA, US
Jonathan Andrew McDowell - San Francisco CA, US
Salil Gokhale - San Jose CA, US

International Classification:

G06F 12/02

US Classification:

711114, 711112, 711E12002

Abstract:

A method for migrating data in a storage system includes generating a first set of logical disks (LDs), the LDs being mapped to physical storage space in the storage system, generating a temporary virtual volume (VV) mapped to the first set of LDs, generating a second set of LDs mapped to the temporary VV, and migrating data between the second set of LDs and a third set of LDs.