石油企业数据备份策略研究

针对目前石油企业远程数据备份系统存在的问题,如:静态备份策略的局限性、备份分组不合理导致备份时间过长、备份作业对前台实时业务造成影响等问题,结合石油企业的应用特点,提出备份策略优化的思路及实现方法.提出了动态备份策略的概念,即通过对备份任务所占用系统资源的量化分析,实施在线备份任务的热插拔处理.通过对来自各个备份客户端数据量动态排序和分组,按同组作业并发工作的特点和完成备份时间相差最小的原则,精确测算备份时间和定位备份窗口,动态调整备份策略,达到备份过程实时优化的目的.通过模拟一个实例验证了研究的可行性和正确性.

Data backup strategy for petroleum enterprises

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.