Computer · 1991 · 339 citations · 10 references
ComputingComputer EngineeringComputer SystemsFault ToleranceFault-tolerant ComputingFault-tolerant SystemsAvailability EngineeringFault Tolerance DesignHardware Fault ToleranceHigh AvailabilityHigh-availability DesignReliable System DesignFault Tolerance ArchitectureFault Tolerance In Digital CircuitsFault Tolerance MechanismsFault Tolerant ArchitecturesFault-tolerant ArchitectureFault-tolerant DesignHigh-availability Systems
The techniques used to build highly available computer systems are sketched. Historical background is provided, and terminology is defined. Empirical experience with computer failure is briefly discussed. Device improvements that have greatly increased the reliability of digital electronics are identified. Fault-tolerant design concepts and approaches to fault-tolerant hardware are outlined. The role of repair and maintenance and of design-fault tolerance is discussed. Software repair is considered. The use of pairs of computer systems at separate locations to guard against unscheduled outages due to outside sources (communication or power failures, earthquakes, etc.) is addressed.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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