Stephen D Macarthur

US Patent:

6742017, May 25, 2004

Filed:

Jun 29, 2000

Appl. No.:

09/606496

Inventors:

David Black - Acton MA
Stephen MacArthur - Northborough MA
Richard Wheeler - Belmont MA

Assignee:

EMC Corporation - Hopkinton MA

International Classification:

G06F 1516

US Classification:

709211, 709212, 709213, 707200, 711154

Abstract:

A system interface includes a plurality of first directors, a plurality of second directors, a data transfer section and a message network. The data transfer section includes a cache memory. The cache memory is coupled to the plurality of first and second directors. The messaging network operates independently of the data transfer section and such network is coupled to the plurality of first directors and the plurality of second directors. The first and second directors control data transfer between the first directors and the second directors in response to messages passing between the first directors and the second directors through the messaging network to facilitate data transfer between first directors and the second directors. The data passes through the cache memory in the data transfer section. A method for operating a data storage system adapted to transfer data between a host computer/server and a bank of disk drives.

US Patent:

6779071, Aug 17, 2004

Filed:

Apr 28, 2000

Appl. No.:

09/561531

Inventors:

Avinash Kallat - Marlborough MA
Robert Thibault - Westboro MA
Stephen D. MacArthur - Northborough MA

Assignee:

EMC Corporation - Hopkinton MA

International Classification:

G06F 1300

US Classification:

710317

Abstract:

A system interface includes a plurality of first directors, a plurality of second directors, a data transfer section and a message network. The data transfer section includes a cache memory. The cache memory is coupled to the plurality of first and second directors. The messaging network operates independently of the data transfer section and such network is coupled to the plurality of first directors and the plurality of second directors. The first and second directors control data transfer between the first directors and the second directors in response to messages passing between the first directors and the second directors through the messaging network to facilitate data transfer between first directors and the second directors. The data passes through the cache memory in the data transfer section. A method for operating a data storage system adapted to transfer data between a host computer/server and a bank of disk drives.

US Patent:

6816916, Nov 9, 2004

Filed:

Jun 29, 2000

Appl. No.:

09/606505

Inventors:

David Black - Acton MA
Stephen MacArthur - Northborough MA
Richard Wheeler - Belmont MA
Natan Vishlitzky - Brookline MA

Assignee:

EMC Corporation - Hopkinton MA

International Classification:

G06F 300

US Classification:

710 5, 710 48, 710 49, 710 64, 710 74, 710 33, 711111, 711112, 711114

Abstract:

A system interface includes a plurality of first directors, a plurality of second directors, a data transfer section and a message network. The data transfer section includes a cache memory. The cache memory is coupled to the plurality of first and second directors. The messaging network operates independently of the data transfer section and such network is coupled to the plurality of first directors and the plurality of second directors. The first and second directors control data transfer between the first directors and the second directors in response to messages passing between the first directors and the second directors through the messaging network to facilitate data transfer between first directors and the second directors. The data passes through the cache memory in the data transfer section. A method for operating a data storage system adapted to transfer data between a host computer/server and a bank of disk drives.

US Patent:

6868479, Mar 15, 2005

Filed:

Mar 28, 2002

Appl. No.:

10/109603

Inventors:

Robert A. Thibault - Westboro MA, US
Stephen D. MacArthur - Northboro MA, US
Brian Gallagher - Southboro MA, US
Brian Marchionni - Milford MA, US

Assignee:

EMC Corporation - Hopkinton MA

International Classification:

G06F012/00

US Classification:

711114, 710305

Abstract:

A data storage system for transferring data between a host computer/server and a bank of disk drives through a system interface. The system interface includes: a plurality of first directors coupled to the host computer/server; a plurality of second directors coupled to the bank of disk drives; a cache memory; and a data transfer section coupled to the plurality of first directors, the second directors, and the cache memory. A messaging network is coupled to the plurality of first directors and the plurality of second directors. The first and second directors control data transfer between the host computer and the bank of disk drives in response to messages passing between the directors through the messaging network as such data passes through the memory via the data transfer section. A service processing network is provided for interfacing a plurality of service processing units to the plurality of first and second directors through a plurality of redundant communication channels. With such arrangement, because the service processor is being more involved in the functionality operation of the system, a pair of redundant service processors is provided.

US Patent:

6993621, Jan 31, 2006

Filed:

Mar 31, 2000

Appl. No.:

09/540825

Inventors:

David L. Black - Acton MA, US
Richard Wheeler - Belmont MA, US
Robert Thibault - Westboro MA, US
Stephen D. MacArthur - Northborough MA, US
Yuval Ofek - Framingham MA, US

Assignee:

EMC Corporation - Hopkinton MA

International Classification:

G06F 13/00
G06F 13/36

US Classification:

710317, 711113, 711130

Abstract:

A system interface includes a plurality of first director boards. Each one of the first director boards has a plurality of first directors and a crossbar switch having input/output ports coupled to the first directors on such one of the first director boards and a pair of output/input ports. The system interface also includes a plurality of second director boards. Each one of the second directors boards has a plurality of second directors and a crossbar switch having input/output ports coupled to the second directors on such one of the second director boards and a pair of output/input ports. A data transfer section is provided having a cache memory. The cache memory is coupled to the plurality of first and second directors. A message network is operative independently of the data transfer section. The message network includes a pair of message network boards.

US Patent:

7003601, Feb 21, 2006

Filed:

Mar 31, 2000

Appl. No.:

09/539966

Inventors:

Stephen D. MacArthur - Northborough MA, US

Assignee:

EMC Corporation - Hopkinton MA

International Classification:

G06F 13/12

US Classification:

710 74, 710 2, 710 5, 710 62, 709203, 709213, 711147

Abstract:

A system interface having a plurality of first directors and a crossbar switch having input/output ports coupled to the first directors on such one of the first director boards and a pair of output/input ports. A plurality of second director boards is provided. Each one of the second directors boards has a plurality of second directors a crossbar switch having input/output ports coupled to the second directors on such one of the second director boards and a pair of output/input ports. A data transfer section is provided having a cache memory. The cache memory is coupled to the plurality of first and second directors. A message network is provided, such network being operative independently of the data transfer section. The first and second directors control data transfer between the first directors and the second directors in response to messages passing between the first directors and the second directors through the message network to facilitate data transfer between first directors and the second directors. The data passes through the cache memory in the data transfer section.

US Patent:

7010575, Mar 7, 2006

Filed:

Oct 5, 2000

Appl. No.:

09/680156

Inventors:

Stephen D. MacArthur - Northboro MA, US
David Black - Acton MA, US
Richard Wheeler - Belmont MA, US

Assignee:

EMC Corporation - Hopkinton MA

International Classification:

G06F 15/167
G06F 15/173
G06F 15/16
G06F 12/00

US Classification:

709211, 709217, 709223, 709229, 709238, 709213, 711100

Abstract:

A system interface includes a plurality of first directors, a plurality of second directors, a data transfer section and a message network. The data transfer section includes a cache memory. The cache memory is coupled to the plurality of first and second directors. The messaging network operates independently of the data transfer section and such network is coupled to the plurality of first directors and the plurality of second directors. The first and second directors control data transfer between the first directors and the second directors in response to messages passing between the first directors and the second directors through the messaging network to facilitate data transfer between first directors and the second directors. The data passes through the cache memory in the data transfer section. A method for operating a data storage system adapted to transfer data between a host computer/server and a bank of disk drives.

US Patent:

7073020, Jul 4, 2006

Filed:

Jun 29, 2000

Appl. No.:

09/606734

Inventors:

David L. Black - Acton MA, US
Stephen D. MacArthur - Northboro MA, US
Richard G. Wheeler - Belmont MA, US
Robert A. Thibault - Westboro MA, US
Michael Shulman - Groton MA, US

Assignee:

EMC Corporation - Hopkinton MA

International Classification:

G06F 3/06

US Classification:

711112, 711117, 711147, 711155, 711168, 710 3, 710 7, 710 33, 710 36

Abstract:

A system interface includes a plurality of first directors, a plurality of second directors, a data transfer section and a message network. The data transfer section includes a cache memory. The cache memory is coupled to the plurality of first and second directors. The messaging network operates independently of the data transfer section and such network is coupled to the plurality of first directors and the plurality of second directors. The first and second directors control data transfer between the first directors and the second directors in response to messages passing between the first directors and the second directors through the messaging network to facilitate data transfer between first directors and the second directors. The data passes through the cache memory in the data transfer section. A method for operating a data storage system adapted to transfer data between a host computer/server and a bank of disk drives.