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| Jul 24, 2008 |
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| IT Management > Systems Operations > Network Management > |
Fault Tolerance
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ALSO CALLED: Fault-tolerance, Fault Tolerant, and FT
DEFINITION: Fault-tolerant describes a computer system or component designed so that, in the event that a component fails, a backup component or procedure can immediately take its place with no loss of service. Fault tolerance can be provided with software, or embedded in hardware, or provided by some combination.
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FAULT TOLERANCE DEFINITION (continued): … In the software implementation, the operating system provides an interface that allows a programmer to "checkpoint" critical data at pre-determined points within a transaction. In the hardware implementation (for example, with Stratus and its VOS operating system), the programmer does not need to be aware of the fault-tolerant capablilities of the machine. At a hardware level, fault tolerance is achieved by duplexing each hardware component. Disks are mirrored. Multiple processors …
Fault Tolerance definition sponsored by SearchCIO-Midmarket.com, powered by WhatIs.com an online computer dictionary
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