Fault_tolerant.docx . Corporate Infrastructure Part 7 Fault Tolerance Grand Canyon Uni

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Fault_tolerant.docx . Corporate Infrastructure Part 7 Fault Tolerance Grand Canyon University: ITT-116-O501 Fault Tolerance The critical nature of information and data in some systems like healt... h sector requires a system that gives optimal tolerance to fault without trading off or compromising system integrity, availability and security in order for the system to afford greater efficiency. An operational fault is an unspecified (failure-induced) change in the value of one or more logic variables in the hardware/software of the system. It is the immediate consequence of a physical failure event or user wrong interaction with system. The event may be a permanent component failure, a temporary or intermittent component malfunction, or externally originating interference with the operation of the system. The key purpose of creating fault tolerance is to avoid (or at least minimize as far as possible) the possibility that the functionality of the system ever becomes unavailable because of a fault in one or more of its components. The system needs provisions to recognize their presence and to deactivate the affected hardware or software while program execution continues using the remaining parts of the system. To design a practical system, one must consider the degree of replication needed. This will be obtained from a statistical analysis for probable acceptable behavior. Factors that enter into this analysis are the average worst case performance in a system without faults and the average wors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . .. .. . . . . . . . . . . . . . . . . . .. . . . . [Show More]

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