Strategy of Keeping Replica Consistency with Dynamic Voting Mechanism in Data Grid

Aiming at the problem that it hard to keeping replica data consistency due to dynamic character in data gird,a keeping replica data consistency strategy in grid environments was presented.According to the dynamic character of Grids,models for Grid systems and replica data consistency respectively were established.Combining dynamic voting mechanism,the presented data consistency algorithm satisfies low online probability.Its correctness was proofed with global ordered and read consistency.At last,simulation shows the influence of dynamic on keeping replica consistency from replica number and scalability in data grid.