Secondary Buffer Memory Mechanism Of The Remote Data Duplicate Based On Campus Grid

With the rapid appearance and development of grid technologies, the research of the grid data management is became more deeply and widely. Grid Data Management is one of the most fundamental and important parts in grid, which correlates with long-range data transmission, long-range file I/O mainly. But In grid computing environment, remote files need to be multi-times duplicated among the adjacent hosts which cooperate distributedly, and that causes the iterant operation problem. Secondary buffer memory mechanism of the remote data duplicate is presented to resolve the problem mentioned above. A solution is given to solve the consistency problem which may encounter in read/write operation. This reduces the communication cost when remote files are duplicated by the hosts in distributed cooperating system and input files is read by multi-process in parallel computing environment, and it makes the communication more efficient. Then has discussed on the question of security that may appear in the data transmission, have put forward once and a dense security tactics suitable for campus Grid, has raised the security in the systematic data transmission course.