Methods and apparatus for controlling performance of a...

Details Methods and apparatus for controlling performance of a... Methods and apparatus for controlling performance of a...

2006-02-14

2006-02-14

Perveen, Rehana (Department: 2111)

Electrical computers and digital data processing systems: input/

Intrasystem connection

System configuring

C710S008000, C710S011000

Reexamination Certificate

active

07000043

ABSTRACT:
Mechanisms and techniques provide a system for controlling performance of a data communications device that operates an input output protocol and/or architecture such as Infiniband by setting a configuration parameter of the input output protocol to a first value. The configuration parameter describes, to the input output protocol operating within the device, a virtual physical connectivity characteristic of the communications interface of the device to at least one other device operating the input output protocol. The system operates the device to communicate data, over the communications interface, at a first performance level corresponding to the first value of the configuration parameter and changes the first value of the configuration parameter to a second value such that the input output protocol perceives a virtual change to the physical connectivity characteristic of the device without the device experiencing an actual change to its physical connectivity characteristic of the communications interface. The system then operates the device to communicate data, over the communications interface, at a second performance level corresponding to the second value of the configuration parameter.

REFERENCES:
patent: 6023736 (2000-02-01), Lambeth et al.
patent: 6199137 (2001-03-01), Aguilar et al.
patent: 6463528 (2002-10-01), Rajakarunanayake et al.
patent: 6477611 (2002-11-01), Chang
patent: 6801331 (2004-10-01), Motoyama
patent: 2003/0097427 (2003-05-01), Parry

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