高能物理的科学计算是典型的数据密集型计算,作业对数据的依赖程度较高,数据调用非常频繁。因此,提供高可用的数据共享能力、保持数据文件的安全性和一致性、保证数据访问的效率是高能物理计算环境中必须解决的问题。论文将AFS分布式文件系统应用于高能物理计算系统中,不仅能够提供较高安全水平的用户管理功能,而且能够提供跨网络、跨平台的文件共享功能,并有效地控制用户文件副本。同时,科学的配置AFS的复制卷也提高了整个计算环境数据调用的效率。
With the development of high energy physics, physics experiments are producing large amount of data. The workload of data analysis is very large, and the analysis work needs to be finished by many scientists together. So, the computing system must provide more secure user manage function and higher level of data--sharing ability. The article introduces a solution based on AFS in the high energy physics computing system, which not only make user management safer, but also make data--sharing easier.