Wireless Mesh Network (WMN) provides a cheaper option for backhauls that can be leveraged to provide low-cost access services. Compared to conventional wireless LANs, the benefits of a WMN include greater range because of packet relaying and higher throughput because of shorter hops. A WMN, however, may be subject to a variety of faults that are hard to diagnose manually. In this paper we discu...

The object management architecture (OMA) has been recognized as a de facto standard in the development of object services in a distributed computing environment. In a distributed system, the provision for failure-recovery is always a vital design issue. However, the fault-tolerant service has not been extensively considered in the current OMA framework, despite the fact that an increasing numbe...

This work investigates the applicability of the automated planning approaches to fault management in cloud computing implementations on the infrastructure as a service level. A decision support solution for the fault management in cloud computing is examined to identify the possibility of the automation of fault recovery in large scale cloud computing deployments. Cloud computing is a fairly ne...

We describe an approach to scheduling hard real-time tasks taking into account fault scenarios. All tasks are scheduled at run-time according to their fixed priorities, which are determined off-line. Upon error-detection, special tasks are released to perform error-recovery actions. We allow error-recovery actions to be executed at higher priority levels so that the fault resilience of the task...

Non-determinism is often caused by infrequent errors that make otherwise deterministic actions fail. In this paper, we introduce fault tolerant planning to address this problem. An n-fault tolerant plan is guaranteed to recover from up to n errors occurring during its execution. We show how optimal n-fault tolerant plans can be generated via the strong universal planning algorithm. This algorit...

The method is proposed for building a fault-tolerant system area network (SAN) as a flat network comprised of several copies of the source network. This flat network is based on a theory of balanced incomplete block designs (BIBD).

The ObjectAgent system is being developed to create a robust software architecture for autonomous control of complex systems. Agents are used to implement all of the software functionality and communicate through simplified natural language messages. These agents have a set of basic survival skills that monitor for internal software faults, providing low-level fault detection and recovery. High...

Abstmct-The paper provides dependability modeling and evaluation (encompassing reliability and safety issues) of the two major fault tolerance software approaches: recovery Mocks (RB) and N-version programming (NVP). The study is based on the detailed analysis of software fault-tolerance architectures able to tolerate a single fault (RB: two alternates and an acceptance test, NVP: three version...

Three different VHDL-based fault injection techniques have been compared to validate a fault tolerant microcomputer system. We have studied the error pathology, their detection and recovery coverages and their latencies.

We will present a protocol of fault tolerant grid migration system using network storage. Our proposed grid migration system has capability to recover from fault in autonomic manner. We also implemented a grid migration system using Globus Toolkit4 and the network storage. Performance evaluation will be reported to show effectiveness of the fault recovery.