FAULT-TOLERANCE RESEARCH OF NAVIGATIONAL NONORTHOGONAL MEASURING INSTRUMENTS

Measuring Fault Tolerance with the FTAPE Fault Injection Tool

This paper describes FTAPE (Fault Tolerance And Performance Eval-uator), a tool that can be used to compare fault-tolerant computers. The major parts of the tool include a system-wide fault injector, a workload generator, and a workload activity measurement tool. The workload creates high stress conditions on the machine. Using stress-based injection, the fault injector is able to utilize knowl...

Applying Fault-Tolerance Principles to Security Research

We have been conducting research in reliable distributed systems in the last twenty years. We have worked on the development of concepts such as consistency, atomicity, durability, availability, rollback, check points, adaptability etc. [1,2]. IEEE symposium on Reliable Distributed systems held every year contains many of the papers dealing with high availability, dependability, and non-stop op...

Measuring Fault Tolerance Overhead in Multi-Run Scientific Computations

Knowing the beneficial or productive usage time for large high performance computing (HPC) platforms is important for computing metrics that capture the reliability, availability, and serviceability (RAS) of the platform. Currently, application execution time is generally accounted as all productive system time, yet large-scale, long-running applications incur fault tolerance overhead such as c...

Reading Measuring Instruments

Fault Tolerance

Permanent faults : This type of failure is persistent: it continues to exist until the faulty component is repaired or replaced. Examples of this fault are disk head crashes, software bugs, and burnt-out power supplies. Any of these faults may be either a fail-silent failure (also known as a fail-stop) or a Byzantine failure. A fail-silent fault is one where the faulty unit stops functioning an...