System Administration is an emerging academic discipline, yet there remains no commonly accepted approach to teaching the core skill of troubleshooting system problems. Troubleshooting is considered by many in the field to be the single most important skill for a working professional. The lack of common teaching methodology for this skill has resulted in an on the job training approach to teach...

The aim of this paper is to present an innovative teaching approach using a troubleshooting methodology in teaching and learning microprocessors by trainees at technical high schools. Moreover, this paper presents the evaluation of this methodology by electronics teachers who teach at technical high schools. In the beginning, the basic theoretical background about the troubleshooting problem-so...

As the heavy duty truck market becomes more competitive the importance of quick and cheap repairs increases. However, to find and repair the faulty component constitutes cumbersome and expensive work and it is not uncommon that the troubleshooting process results in unnecessary expenses. To repair the truck in a cost effective fashion a troubleshooting strategy that chooses actions according to...

This experience paper describes the process of leveraging the NFV orchestration platform built in the EU FP7 project UNIFY to deploy a dynamic network service exemplified by an elastic router. Elasticity is realized by scaling dataplane resources as a function of traffic load. To achieve this, the service includes a custom scaling logic and monitoring capabilities. An automated monitoring frame...

The increasing complexity of IT systems can lead to operational failures with disastrous consequences. In order to correct and prevent the recurrence of such failures, a thorough postmortem investigation is required to localise their root causes. However, the currently used troubleshooting approach fails to provide sound analysis of these causes. A promising alternative approach is the emerging...

Turbinia-Vyasa is a computer-based instructional system that trains operators to troubleshoot and diagnose faults in marine power plants. The simulator, Turbinia, is based on a hierarchical representation of subsystems, components, and primitives. Vyasa is the computer-based tutor that teaches the troubleshooting task using Turbinia. The simulator, an interactive, direct manipulation interface,...

We propose VFocus, a platform which uses streaming graph analytics to narrow down the search space for troubleshooting and management in large scale data centers. This paper describes useful guidance operations which are realized with graph analytics and validated with representative use cases. The first case is based on real data center traces to measure the performance of troubleshooting oper...

After the Fukushima nuclear accident, safety of nuclear power plants (NPPs) is widespread concerned. The reliability of reactor protection system (RPS) is directly related to the safety of NPPs, however, it is difficult to accurately evaluate the reliability of digital RPS. The method is based on estimating probability has some uncertainties, which can not reflect the reliability status of RPS ...