Dave Mccrory

US Patent:

7257584, Aug 14, 2007

Filed:

May 13, 2004

Appl. No.:

10/844924

Inventors:

Robert A. Hirschfeld - Austin TX, US
C. Evan Pollan - Austin TX, US
Dave D. McCrory - Austin TX, US

Assignee:

Surgient, Inc. - Austin TX

International Classification:

G06F 17/30

US Classification:

707 10, 709217, 709212

Abstract:

A virtual hard drive (VHD) file manager system for a virtualized logical server cloud including a master repository and a VHD file manager. The VHD interfaces virtualization software and a server cloud manager to manage VHDs for logical servers of the server cloud. The master repository stores multiple master component files associated with the stored VHDs. The master component files include at least one core file and at least one delta file. The VHD file manager enables copying of the master component files to deploy VHDs in the server cloud, manages creation and storing of new delta files and corresponding VHDs in the master repository, and generates and maintains meta information to maintain file relationship integrity.

US Patent:

7529867, May 5, 2009

Filed:

Apr 24, 2007

Appl. No.:

11/739460

Inventors:

Dave Dennis McCrory - Pflugerville TX, US
John Edward Kellar - Austin TX, US

Assignee:

Inovawave, Inc. - Austin TX

International Classification:

G06F 3/00
G06F 13/36

US Classification:

710 52, 710 29, 710310, 370235

Abstract:

A system and method for processing input/output (I/O) requests in a virtualized computer system. I/O requests are received from a virtual machine. A set of virtual I/O channels that may be interfaced with a host I/O stack and/or a virtual machine I/O stack adaptively queues requested data using a variety of I/O queue management modules. In one embodiment, the virtual I/O channels include an entropy detection module and a queue storage. The entropy detection module determines an entropy value of specified I/O request data and encodes the specified I/O request data with the entropy value within the queue storage.

US Patent:

7643484, Jan 5, 2010

Filed:

Feb 9, 2005

Appl. No.:

11/053770

Inventors:

Charles A. Willman - Austin TX, US
Scott C. Johnson - Austin TX, US
Dave D. McCrory - Cedar Park TX, US
Robert A. Hirschfeld - Austin TX, US

Assignee:

Surgient, Inc. - Austin TX

International Classification:

H04L 12/28
H04L 12/56

US Classification:

370392, 370389, 370397, 370399, 37039554, 709227, 709229, 709238

Abstract:

A computer system of a federation coupled to a network including a server having an internal address associated with a first subnet and a network abstraction and isolation layer rules-based federation and masquerading (NAIL RBFM) interface that interfaces the server with the network. The NAIL RBFM interface transforms the internal address between the first subnet and a second subnet for intra-federation communications. The NAIL RBFM interface performs transform and inverse transform operations to convert between internal and external addresses of intra-federation network traffic. The operations may be performed on source and destination addresses, and may be configured in any of several manners, such as modifying at least one bit of an address, replacing at least one octet of an IP address, substituting a prefix of an address, replacing an entire address, etc.

US Patent:

7769004, Aug 3, 2010

Filed:

Sep 24, 2004

Appl. No.:

10/950355

Inventors:

Scott C. Johnson - Austin TX, US
Dave D. McCrory - Austin TX, US

Assignee:

Surgient, Inc. - Austin TX

International Classification:

H04L 12/28

US Classification:

370389, 370392

Abstract:

A network abstraction and isolation layer (NAIL) for masquerading the machine identity of a computer in a network to enable the computer to communicate in the network with a different machine identity including an isolated network interface for communicating with the computer, an abstraction network interface for communicating with a network device coupled to the network, and control logic. The control logic is coupled to the isolated and abstraction network interfaces and performs machine identity translation to masquerade machine identity of the computer relative to the network. Machine identity masquerading includes selectively translating any one or more of an IP address, a MAC address, a machine name, a system identifier, and a DNS Name in the header or payload of communication packets.

US Patent:

8331391, Dec 11, 2012

Filed:

Jul 16, 2010

Appl. No.:

12/838009

Inventors:

Scott C. Johnson - Austin TX, US
Dave D. McCrory - Austin TX, US

Assignee:

Quest Software, Inc. - Aliso Viejo CA

International Classification:

H04L 12/56
H04J 1/16

US Classification:

370419, 370252, 370389, 370392

Abstract:

A network abstraction and isolation layer (NAIL) for masquerading the machine identity of a computer in a network to enable the computer to communicate in the network with a different machine identity including an isolated network interface for communicating with the computer, an abstraction network interface for communicating with a network device coupled to the network, and control instructions or device. The control instructions or device performs machine identity translation to masquerade machine identity of the computer relative to the network. Machine identity masquerading includes selectively translating any one or more of an IP address, a MAC address, a machine name, a system identifier, and a DNS Name in the header or payload of communication packets.

US Patent:

20050229175, Oct 13, 2005

Filed:

Apr 13, 2004

Appl. No.:

10/823342

Inventors:

Dave McCrory - Austin TX, US
Ghassan Yammine - Georgetown TX, US
Neal Prager - Austin TX, US
Robert Hirschfeld - Austin TX, US

Assignee:

Surgient, Inc. - Austin TX

International Classification:

G06F009/445

US Classification:

717177000

Abstract:

A conversion system for converting a source disk image supporting a first hardware configuration into a target disk image supporting a second and different hardware configuration. The conversion system includes a first server that mounts the source disk image as a target disk drive, a repository that stores information and files useful for supporting the second hardware configuration, a rules library that facilitates conversion of hardware specific attributes in accordance with an external introspection process (EIP), and a conversion engine executed on the first server and interfaced with the repository and the rules library. The conversion engine performs the EIP by examining the source disk image on the target disk drive to determine modifications to convert to the target disk image.

US Patent:

20080104589, May 1, 2008

Filed:

Apr 24, 2007

Appl. No.:

11/739426

Inventors:

Dave Dennis McCrory - Pflugerville TX, US
John Edward Kellar - Austin TX, US

International Classification:

G06F 9/455
G06F 12/06

US Classification:

718 1

Abstract:

A system and method for processing input/output (I/O) requests in a virtualized computer system. I/O requests are received from a virtual machine. A set of virtual I/O channels that may be interfaced with a host I/O stack and/or a virtual machine I/O stack adaptively queues requested data using a variety of I/O queue management modules. In one embodiment, the virtual I/O channels include an entropy detection module and a queue storage. The entropy detection module determines an entropy value of specified I/O request data and encodes the specified I/O request data with the entropy value within the queue storage.

US Patent:

20080104590, May 1, 2008

Filed:

Apr 24, 2007

Appl. No.:

11/739447

Inventors:

Dave Dennis McCrory - Pflugerville TX, US
John Edward Kellar - Austin TX, US

International Classification:

G06F 9/455

US Classification:

718 1

Abstract:

A system and method for processing input/output (I/O) requests in a virtualized computer system. I/O requests are received from a virtual machine. A set of virtual I/O channels that may be interfaced with a host I/O stack and/or a virtual machine I/O stack adaptively queues requested data using a variety of I/O queue management modules. In one embodiment, the virtual I/O channels include an entropy detection module and a queue storage. The entropy detection module determines an entropy value of specified I/O request data and encodes the specified I/O request data with the entropy value within the queue storage.