A resource selection optimization model for data grid

In order to meet data grids' data service reliability and transmission time constraints, and to take account of the network load and efficient use of node resources, a resource selection optimization model for data grid is presented. The model can give the optimal decision-making of the collection for participating nodes, and at the same time, set the weighting factor to balance network load and resource costs. A backup node transmission strategy is proposed to further enhance the usability of the model. The simulative experiments show that the model and the strategy are correct and effective.