Unisys Corporation

Jessica A Paragas

Jeffery A Stell

Phillip M Hoffman

Robert J Sliwa

Anthony P Matyok

James W Thompson

William Stratton

Sharon M Mauer

Tatyana Martsun

Robert K Liermann

Steven D Schatz

Jeffrey A Stell

Eugene W Troxell

A computing system using a persistent, unique identifier may be used to authenticate the system that ensures software and configurations of systems are properly licensed while permitting hardware components to be replaced. The persistent, unique system identifier may be coupled to serial numbers or similar hardware identifiers of components within the computing system while permitting some of the hardware components to be deleted and changed. When components that are coupled to the persistent, unique identifier are removed or disabled, a predefined time period is provided to update the coupling of the persistent, unique identifier to alternate hardware component in the system.

System and method for providing a mechanism to virtualize a perpetual, unique system identity on a partitioned computer system

A method and system for maintaining the execution speed of a multiprocessor computer system includes automatically detecting a change in instruction execution rate in a disabled processor by a threshold amount and determining an amount of change in instruction execution rate to adjust an actual system-level instruction execution rate to approximate a target system-level instruction execution rate. The target system-level execution rate being pre-determined. Thereafter, the method adjusts one or more instruction processor execution rates such that the actual system-level instruction execution rate approximates the target system-level instruction execution rate to overcome the loss of the disabled processor. One embodiment of the invention involves the use of a processor key for licensing of processor resources within the computer system and offers the option of enabling a dynamic processor recovery method as well as an automatic execution rate regulation method.

System and method for maintaining a constant processor service level in a computer

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Springfield, PA, United States of America

Jessica A Paragas