Stephen 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:

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:

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:

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.