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Injecting Intermittent Faults for the Dependability Assessment of a Fault-Tolerant Microcomputer System
Authors
Juan Carlos Baraza Calvo
Daniel Antonio Gil Tomás
+3 more
Pedro Joaquín Gil Vicente
Joaquín Gracia Morán
Luis José Saiz Adalid
Publication date
1 June 2016
Publisher
'Institute of Electrical and Electronics Engineers (IEEE)'
Doi
Cite
Abstract
© 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.As scaling is more and more aggressive, intermittent faults are increasing their importance in current deep submicron complementary metal-oxide-semiconductor (CMOS) technologies. This work shows the dependability assessment of a fault-tol- erant computer system against intermittent faults. The applied methodology lies in VHDL-based fault injection, which allows the assessment in early design phases, together with a high level of observability and controllability. The evaluated system is a duplex microcontroller system with cold stand-by sparing. A wide set of intermittent fault models have been injected, and from the simulation traces, coverages and latencies have been measured. Markov models for this system have been generated and some dependability functions, such as reliability and safety, have been calculated. From these results, some enhancements of detection and recovery mechanisms have been suggested. The methodology presented is general to any fault-tolerant computer system.This work was supported in part by the Universitat Politecnica de Valencia under the Research Project SP20120806, and in part by the Spanish Government under the Research Project TIN2012-38308-C02-01. Associate Editor: J. Shortle.Gil Tomás, DA.; Gracia Morán, J.; Baraza Calvo, JC.; Saiz Adalid, LJ.; Gil Vicente, PJ. (2016). Injecting Intermittent Faults for the Dependability Assessment of a Fault-Tolerant Microcomputer System. IEEE Transactions on Reliability. 65(2):648-661. https://doi.org/10.1109/TR.2015.2484058S64866165
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info:doi/10.1109%2Ftr.2015.248...
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