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Issue No.07 - July (1990 vol.23)
pp: 39-51
<p>A structured definition of hardware- and software-fault-tolerant architectures is presented. Software-fault-tolerance methods are discussed, resulting in definitions for soft and solid faults. A soft software fault has a negligible likelihood or recurrence and is recoverable, whereas a solid software fault is recurrent under normal operations or cannot be recovered. A set of hardware- and software-fault-tolerant architectures is presented, and three of them are analyzed and evaluated. Architectures tolerating a single fault and architectures tolerating two consecutive faults are discussed separately. A sidebar addresses the cost issues related to software fault tolerance. The approach taken throughout is as general as possible, dealing with specific classes of faults or techniques only when necessary.</p>
Jean-Claude Laprie, Jean Arlat, Christian Béounes, Karama Kanoun, "Definition and Analysis of Hardware- and Software-Fault-Tolerant Architectures", Computer, vol.23, no. 7, pp. 39-51, July 1990, doi:10.1109/2.56851
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