Michael J Robillard

US Patent:

7298167, Nov 20, 2007

Filed:

Jun 24, 2005

Appl. No.:

11/166822

Inventors:

Timothy Dorr - North Attleboro MA, US
Michael N. Robillard - Shrewsbury MA, US
Louise Schwabe - Sterling MA, US

Assignee:

EMC Corporation - Hopkinton MA

International Classification:

G01R 31/36
G01R 31/26
G01R 31/00
G01R 19/00

US Classification:

324771, 324767, 324522, 702 58, 702 64

Abstract:

A system for detecting a fault in a power supply having at least one power supply unit and a redundant power supply unit. The system includes a printed circuit board and a common voltage bus disposed on the printed circuit board. A plurality of diodes is disposed on the printed circuit board having first electrodes connected to the common voltage supply bus. The diodes have second electrodes connected to a corresponding one of the at least one power supply unit and the redundant power supply unit. The diodes are connected to the common bus in a logic OR configuration. A controller, disposed on the printed circuit board, is fed by a voltage at the second electrode of a corresponding one of the diodes and a reference voltage for determining whether the voltage at the second electrode of the corresponding one of the diodes is producing a predetermined voltage relative to the reference voltage.

US Patent:

7574540, Aug 11, 2009

Filed:

Jan 3, 2006

Appl. No.:

11/325001

Inventors:

Michael N. Robillard - Shrewsbury MA, US
Sharon A. Smith - Brookline MA, US

Assignee:

EMC Corporation - Hopkinton MA

International Classification:

G06F 13/12
G06F 3/00
G06F 13/00

US Classification:

710 62, 710 2, 710 5, 711100

Abstract:

A data storage system includes a first and second boards disposed in a chassis. The first board has disposed thereon a first Serial Attached Small Computer Systems Interface (SAS) expander, a first management controller (MC) in communication with the first SAS expander, and management resources accessible to the first MC. The second board has disposed thereon a second SAS expander and a second MC. The system also has a communications link between the first and second MCs. Primary access to the management resources is provided in a first path which is through the first SAS expander and the first MC, and secondary access to the first management resources is provided in a second path which is through the second SAS expander and the second MC.

US Patent:

7577767, Aug 18, 2009

Filed:

Sep 9, 2005

Appl. No.:

11/224509

Inventors:

Michael N. Robillard - Shrewsbury MA, US
Timothy Dorr - North Attleboro MA, US
Sharon Smith - Brookline MA, US

Assignee:

EMC Corporation - Hopkinton MA

International Classification:

G06F 3/00

US Classification:

710 15, 324161, 324166, 348461

Abstract:

An interface for coupling data between a host computer/server and a bank of disk drives. The interface includes a chassis having disposed therein: a pair of storage processors adapted for coupling to the host computer/server; and, a pair of management controllers in communication one with the other through a communication link. The management controllers monitor elements of the interface including fans and power supplies and control such elements in response to massages passing between the management controllers.

US Patent:

7684961, Mar 23, 2010

Filed:

Sep 27, 2007

Appl. No.:

11/862253

Inventors:

Michael N. Robillard - Shrewsbury MA, US
Himanshu Agrawal - Cambridge MA, US

Assignee:

EMC Corporation - Hopkinton MA

International Classification:

G06F 11/00

US Classification:

702183, 714 30

Abstract:

Described is an electronics system having an individually replaceable electronics module installed therein. The individually replaceable electronics module includes a component, a light-emitting device (LED) disposed near the component, a processor module for performing diagnostics on the component and producing a message based on results of the diagnostics, and a microcontroller in communication with the processor module to receive the message produced by the processor module. The microcontroller determines whether the component is faulting based on the message. A DC power source is coupled to supply power to the microcontroller after the individually replaceable electronics module is electrically disconnected from the electronics system so that the microcontroller can illuminate the LED if the received message indicates that the component is faulting.

US Patent:

7774763, Aug 10, 2010

Filed:

Jun 22, 2005

Appl. No.:

11/158769

Inventors:

Michael N. Robillard - Shrewsbury MA, US

Assignee:

EMC Corporation - Hopkinton MA

International Classification:

G06F 9/44
G06F 9/45

US Classification:

717140, 717136, 717162

Abstract:

An improved multi-tasking executable program has executable code which includes a main section defined by a main portion of source code, and a set of task sections defined by a set of task portions of the source code. Each task section has (i) a “jump_to_address” section defined by expansion of a “jump_to_address” macro of the source code, and (ii) multiple entry points defined by multiple expansions of a “breakout” macro of the source code. When the executable code is executed by a processor of the subsystem, the main section is configured to invoke each task section in a cyclical manner, and the “jump_to_address” section of each task section is configured to jump execution to one of the multiple entry points of that task section.

US Patent:

7988063, Aug 2, 2011

Filed:

Jun 30, 2008

Appl. No.:

12/165220

Inventors:

Daniel Savilonis - Brookline MA, US
John Kevin Bowman - Brighton MA, US
John V Burroughs - East Sandwich MA, US
Michael Robillard - Shrewsbury MA, US

Assignee:

EMC Corporation - Hopkinton MA

International Classification:

F24F 7/00
H02B 1/00
G06F 1/00

US Classification:

236 493, 361678, 36167946, 36167948

Abstract:

A system having: a midplane having air flow channels therein; a disk drive mounted to a first side of the midplane; and a temperature sensors mounted to the midplane. The system includes a pair of electrical chassis connected to a second side of the midplane. A first one of the chassis has therein: a fan; and a fan controller for controlling speed of the fan in response to a temperature control signal. A second one of the chassis has therein: a microprocessor for: detecting temperature signals produced by the temperature sensors; comparing differences between the detected temperature signals; and selecting one of the detected temperature control signal from the compared differences as the temperature control signal. A faulty one of the temperature sensors is detected by: selecting one of the detected temperature control signal as the faulty one of the plurality of temperature sensors from the compared differences.

US Patent:

8239692, Aug 7, 2012

Filed:

Mar 31, 2007

Appl. No.:

11/731130

Inventors:

Michael N. Robillard - Shrewsbury MA, US
Jason Pritchard - Hopkinton MA, US
Himanshu Agrawal - Cambridge MA, US
Jason B. Stock - Hopedale MA, US

Assignee:

EMC Corporation - Hopkinton MA

International Classification:

G06F 1/00
G06F 9/00
G06F 9/24
G06F 15/177
G06F 13/00

US Classification:

713300, 713 1, 713330, 710110

Abstract:

A system for powering on downstream devices includes a master device; a first slave device; and a first communication link connecting the master device to the slave device for enabling the master device to transmit data signals to the slave device. The master device includes a power-on signal generator for injecting a power-on signal onto the communication link and the first slave device includes a power-on signal receiver for detecting the power-on signal injected on the communication link by the power-on signal generator and powering on the first slave device.

US Patent:

8311764, Nov 13, 2012

Filed:

Dec 17, 2009

Appl. No.:

12/640732

Inventors:

Michael Robillard - Shrewsbury MA, US
John K. Bowman - Brighton MA, US
James W. Espy - Andover MA, US
Steven R. Cieluch - Allston MA, US
David Boudreau - Methuen MA, US
Joseph P. King - Sterling MA, US
Robert M. Beauchamp - Milford MA, US

Assignee:

EMC Corporation - Hopkinton MA

International Classification:

G01K 11/00

US Classification:

702130

Abstract:

A method and computer program product for determining an internal temperature of a computing device, a power consumption factor for the computing device, and an airflow factor for the computing device. An approximated ambient air temperature is generated based upon the internal temperature, power consumption factor, and the airflow factor.