Discriminating Fault Rate and Persistency to Improve Fault Treatment

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 behaviour and the exploration of its effects on the system. To this goal, the scheme is mechanized as a device named αcount, endowed with a few controllable parameters. α-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 α-count's behaviour; the actual evaluation, in a range of configurations, is performed by standard tools, in terms of the delay in spotting...

• Type: Conference
• Year: 1997
• Where: FTCS
• Authors: Andrea Bondavalli, Silvano Chiaradonna, Felicita Di Giandomenico, Fabrizio Grandoni 0002
• Keywords: Consolidate Identification, FTCS 1997, Transient Faults, Transient Faults Discrimination