NAJME MANSOURI - Department of Computer Science, Shahid Bahonar University of Kerman

Data grids are a very important and useful technique for solving problems created by the huge amounts of data scientific experiments and simulations produce. Data replication, a strategy much addressed by data grid researchers in past years, creates multiple copies of files and stores them in appropriate locations to shorten file access times. Data replication techniques are used in data grid to reduce makespan, storage consumption, access latency and network bandwidth. In this paper, different replication strategies are studied to determine which attributes are considered in a given strategy and which are ignored. A tabular representation of all those parameters is presented to facilitate the future comparison of dynamic replication strategies. Most existing algorithms implement data replication as a middleware service, using dynamic strategies. This paper also presents some discussion about future work in this direction by proposing some open research challenges.

Dynamic replication, Data grid, Computational grid, Simulation