GUARDS: A Generic Upgradable Architecture for Real-Time Dependable Systems
IEEE Transactions on Parallel and Distributed Systems
Threshold-Based Mechanisms to Discriminate Transient from Intermittent Faults
IEEE Transactions on Computers
Effective Fault Treatment for Improving the Dependability of COTS and Legacy-Based Applications
IEEE Transactions on Dependable and Secure Computing
A Maintenance-Oriented Fault Model for the DECOS Integrated Diagnostic Architecture
IPDPS '05 Proceedings of the 19th IEEE International Parallel and Distributed Processing Symposium (IPDPS'05) - Workshop 2 - Volume 03
Online Diagnosis and Recovery: On the Choice and Impact of Tuning Parameters
IEEE Transactions on Dependable and Secure Computing
A survey of linguistic structures for application-level fault tolerance
ACM Computing Surveys (CSUR)
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In this paper the consolidate identification of faults, distinguished as transient or permanent/intermittent, is approached. Transient faults discrimination has long been performed in commercial systems: threshold-based techniques have been practiced for several years for this purpose. The present work aims to contribute to the usefulness of the count-and-threshold scheme, through the analysis of its behavior and the exploration of its effects on the system. To this goal, the scheme is mechanized as a device named a-count, endowed with a few controllable parameters. a-count tries to balance between two conflicting requirements: to keep in the system those components that have experienced just transient faults; and to remove quickly those affected by permanent or intermittent faults. Analytical models are derived, allowing detailed study of a-count's behaviour; the actual evaluation, in a range of configurations, is performed by standard tools, in terms of the delay in spotting faulty components and the probability of improperly blaming correct ones.