A Model for the Analysis of the Fault Injection Process

  • Authors:
  • A. Steininger;H. Schweinzer

  • Affiliations:
  • -;-

  • Venue:
  • FTCS '95 Proceedings of the Twenty-Fifth International Symposium on Fault-Tolerant Computing
  • Year:
  • 1995

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Abstract

Abstract: Results of fault injection experiments performed under different conditions can only be related to each other, if their interpretation is based on a thorough understanding of activation and propagation of faults and errors. We analyze these processes by applying a special layer model of a computing system. Our aim is to model the transformation of a fault on a signal line into a system failure as the propagation of erroneous information through multiple layers. Two specific layers that describe the fault activation process have been sufficiently completed and are presented here. A quantification for these is derived and different applications are summarized. Excellent correspondence between analytical results based on modeling and experimental data is found. A prediction of fault activation with high accuracy is possible, as well as a quantitative evaluation of the effect of synchronizing fault injection.