This paper describes the design, implementation and usage of a secure scalable Byzantine fault tolerant MDS system in the Grid. The scalable Byzantine fault tolerant MDS system provides a hierarchy GIIS servers, a local GIIS domain can require the resource it needs from remote GIIS domain. By using the statemachine replication approach and quorum system technique, the scalable Byzantine fault t...

the investigation of this paper focuses on eastern part of shahroud fault system in middle-east alborz. this fault system is an important part in the seismotectonic map of the area. we used two local temporary dense seismological networks data installed around the fault system for several months during 2007 and 2008 and simultaneously micro-earthquakes data recorded by the permanent seismologic...

(paper pages 133-156) zagros active fold-thrust belt lies on the northern margin of the arabian continental crust it is a young fold-thrust mountain belt currently shortening, thickening and uplifting as a result of the collision of the arabian and iranian plates. rethickening of crust during collisional orogenies could have been carried out by reversal of fault motion along the mesozoic normal...

a new fault tolerant controller (ftc) has been presented in this research by integrating a fault detection and diagnosis (fdd) mechanism in a nonlinear model predictive controller framework. the proposed fdd utilizes a multi-sensor data fusion (msdf) methodology to enhance its reliability and estimation accuracy. an augmented state-vector model is developed to incorporate the occurred sensor fa...

Computer diagnosis systems grounded on hand-crafted fault trees are widespread in industrial practice. Since the complexity of technical systems increases and innovation cycles get shorter, the need for systematic fault tree generation and maintenance arises. In this paper, the MAD system is introduced which generates fault trees based on models of technical devices. Since a fault tree can be g...

Soft computing is a partnership between A.I. techniques that are tolerant of imprecision, uncertainty and partial truth, with the aim of obtaining a robust solution for complex systems. Telecommunication systems are built with extensive redundancy and complexity to ensure robustness and quality of service. To facilitate this requires complex fault identification and management systems. Fault id...

Dynamic resource management is a crucial part of the infrastructure for emerging mission-critical distributed real-time embedded system. Because of this, the resource manager must be fault-tolerant, with nearly continuous operation. This paper describes an ongoing effort to develop a fault-tolerant multi-layer dynamic resource management capability and the challenges we have encountered, includ...

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 present a new method called Lazy Fault Tolerance for reening the reliability of distributed systems. Lazy Fault Tolerance uses data redundancy and the data of objects are distributed over computers in accordance with their`nativity'. The data of system management objects, which control the whole system based on the information of each computer, are naturally distributed over all computers. T...