DAVID N GRANT
Electrician at Gessner Rd, Houston, TX

5909691, Jun 1, 1999

Dec 20, 1996

8/777679

Stephen M. Schultz - Houston TX
David S. Schmenk - The Woodlands TX
E. David Neufeld - Tomball TX
David L. Grant - Houston TX
David L. Flower - Tomball TX

Compaq Computer Corporation - Houston TX

G06F 1200

711 4

For use with a computer system having an intelligent mass storage disk array subsystem, including a microprocessor controller, a method for the distribution of data within the disk array based upon logical commands issued by the computer system. The disk controller reads a logical command and translates the commands into multiple drive specific commands, including drive physical parameter information such as head, sector and cylinder selection. The calculation of these physical parameters is based upon a number of factors including the operating system installed in the computer system, the type of interleave scheme, if any, specified by the computer system configuration, and disk specific parameters. The physical drive requests are then placed in a queue and executed by the microprocessor controller. The method also encompasses a method for creating a disk array configuration to be loaded on all disks within the array based on existing valid disk array information and configuration information maintained by the computer system.

5592648, Jan 7, 1997

Dec 7, 1993

8/163011

Stephen M. Schultz - Houston TX
David S. Schmenk - The Woodlands TX
E. David Neufeld - Tomball TX
David L. Grant - Houston TX
David L. Flower - Tomball TX

Compaq Computer Corporation - Houston TX

G06F 722

395441

For use with a computer system having an intelligent mass storage disk array subsystem, including a microprocessor controller, a method for the distribution of data within the disk array based upon logical commands issued by the computer system. The disk controller reads a logical command and translates the commands into multiple drive specific commands, including drive physical parameter information such as head, sector and cylinder selection. The calculation of these physical parameters is based upon a number of factors including the operating system installed in the computer system, the type of interleave scheme, if any, specified by the computer system configuration, and disk specific parameters. The physical drive requests are then placed in a queue and executed by the microprocessor controller. The method also encompasses a method for creating a disk array configuration to be loaded on all disks within the array based on existing valid disk array information and configuration information maintained by the computer system.

6209023, Mar 27, 2001

Jan 5, 1999

9/225437

John E. Dimitroff - Houston TX
David L. Grant - Houston TX
Eugene E. Freeman - The Woodlands TX
Robert S. Gready - Spring TX
Raymond A. Ritter - Spring TX
Zuohui Zhang - Spring TX

Compaq Computer Corporation - Houston TX

G06F13/00

709211

A network provides a method of virtualizing SCSI semantics onto a non-SCSI transport medium. The network includes a plurality of hosts or initiators, a SCSI bus coupled to a plurality of SCSI devices, and a bridge having a non-SCSI front end coupled to the non-SCSI transport medium and a SCSI back end coupled to the SCSI bus. The bridge provides firmware for performing various techniques for virtualizing certain SCSI semantics to ensure support (proper operation) of the plurality of SCSI devices. Examples of SCSI semantics for virtualizing SCSI-2 semantics onto a Fibre Channel interconnect medium (a non-SCSI-2 transport medium) include reserve/release support, unit attention support, the non-tagged command processing support for the initiators. Reserve/release support is virtualized by implementing virtual command responses to the RESERVE and RELEASE SCSI-2 command using a table for storing Fibre Channel world wide names (WWN) and the arbitrated loop address (ALPA) for the plurality of initiators. Virtual unit attention support is achieved by maintaining alist of initiators and status flags to determine when a unit attention condition needs to be sent to a particular initiator.

4941059, Jul 10, 1990

Sep 13, 1988

7/243784

David L. Grant - Houston TX

Compaq Computer Corporation - Houston TX

G06F 100

360 722

A method is disclosed for restoring apparently lost files on a computer whose directory file entries have been corrupted. In particular, the method includes an improved technique for locating initial or head clusters of files. An array is initialized to indicate that each element of a file allocation table (FAT) corresponds to a head cluster. Each element of the FAT is then examined, and the array is updated to reflect accurately those elements that correspond to non-head clusters. When all elements of the FAT have been so examined, the array is scanned to build a list of head cluster numbers.

6842833, Jan 11, 2005

Jun 30, 1998

09/107539

Gary L. Phillips - Houston TX, US
Robert S. Gready - Spring TX, US
Raymond A. Ritter - Spring TX, US
Eugene E. Freeman - The Woodlands TX, US
John E. Dimitroff - Houston TX, US
David L. Grant - Houston TX, US

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

G06F 1200

711162, 711112, 711114, 707204

A computer system and storage management method for routing data between peer-level storage units. The computer system includes a first storage unit (e. g. , disk drive) and an intelligent controller connected to a storage area network. The intelligent controller is also connected to a second storage unit (e. g. , tape drive). The computer system further includes a host (server and/or workstation) having an application module for generating and transmitting a command to the intelligent controller by way of the storage area network or a system network. In response to the transmitted command, the intelligent controller routes data between the first storage unit and the second storage unit using the storage area network while bypassing the host.