The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 15, 2003

Filed:

Jun. 29, 1999
Applicant:
Inventors:

Hossein Moiin, London, GB;

Peter Martin Grant Dickinson, Gosforth, GB;

Assignee:

Sun Microsystems, Inc., Santa Clara, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/100 ;
U.S. Cl.
CPC ...
G06F 1/100 ;
Abstract

A system and method for monitoring a distributed fault tolerant computer system. A hardware counter mechanism (e.g. a countdown counter) is reset repeatedly by a software reset mechanism during normal operation, thereby preventing the counter mechanism from reaching a count indicative of the existence of a fault. A unit provides a signal to a bus indicative of the status (ON or OFF) of the unit. A management subsystem defines a configuration for the distributed fault tolerant computer system. The management subsystem is responsive to status signals on the bus and selectively reconfigures a stored representation in response to changing status signals on the bus.


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