Data backup strategy for petroleum enterprises
Liu Mao-cheng · Journal of Xi'an Shiyou University · 2009
At present,there are many problems in the remote data backup system of petroleum enterprises,such as the limitation of traditional static data backup strategy,too long backup time caused by unreasonable backup grouping,the influence of data backup on real-time operation,etc.The thought of backup strategy optimization and its implementation method are proposed according to the characteristics of the remote data backup of the petroleum enterprises.The concept of dynamic backup strategy is put forward,and the hot-swapping backup scheduling online depending on the critical system load to prevent the real-time operation task from getting into trouble by calculating and quantifying the load which backup task engrosses.The optimization of real-time backup procedure is achieved by the dynamic regrouping of the backup data from every client,the estimation of the backup time which depends on the optimized regrouping result,the determination of the shortest backup window,and the modification of the backup strategy according to the shortest backup windows.The feasibility and the correctness of this research is verified by the simulation of a dynamic backup strategy.