Nowadays, large-scale systems perform various missions with multiple functions during life cycles for satisfying the customer’s various needs. Therefore, we should develop the robust and attractive systems and be accurately evaluated prior to development of the system. System availability is often considered to represent the performance of the repairable systems and can be increased through imp...

Distributed storage system (DSS) is an emerging paradigm which provides reliable services for various source data. As the fault-tolerance scheme DSS, erasure codes are required to provide redundancy service with high and low cost.However, existing coding cannot these requirements well. Thus, it becomes important yet challenging issue find a code storing data cost. In this paper, novel construct...

Bi-objective optimization of the availability allocation problem in a series–parallel system with repairable components is aimed in this paper. The two objectives of the problem are the availability of the system and the total cost of the system. Regarding the previous studies in series–parallel systems, the main contribution of this study is to expand the redundancy allocation problems to syst...

A new method of reliability analysis of complex systems and software supporting is suggested. It is based on modelling of their evolution by means of semi–Markov processes. The results are obtained under general assumptions concerning the distributions of failure and repair times of the system’s unit. We will consider a complex system S with repairable units. It consists from N, (N ≥ 1) units a...

The reliability of the GTPPS were analyzed based on a five and half -year failure database. Such reliability has been estimated by selecting Proper model and different models for repairable system analysis were discussed. The reliability estimation by using Nonhomogenious process and Homogenous renewal Process are explained. Non Homogeneous Process was further divided into Power law Process and...