Architecting for Reliability - Recovery Mechanisms

Abstract

Telecommunications systems achieve high levels of reliability by implementing detection and recovery mechanisms with high coverage. With the trend towards the use of more COTS components in these systems the choices available for the systems detection and recovery mechanisms are more limited. An escalating recovery model with varying coverage factors and recovery durations is developed to provide insight into high availability design alternatives for commercial products. This work extends our previous examination of escalating detection by considering recovery.