使用RLS实现CICS对远程VSAM的高效访问研究

The High Performance Approach for CICS Accessing Remote VSAM By Applying RLS

在CICS中访问远程数据,如果不使用RLS,就要通过AOR向FOR递交请求进行功能传送。而在SYSPLEX环境下使用RLS就可以避免功能传送直接由AOR访问远程文件,这就简化了访问过程。RLS使用Coupling Facility的高速缓存存取数据,实现记录级访问,提高了访问性能。

Without RLS CICS have to submit request to FOR by AOR to access remote data by using Function Shipping. In sysplex envi- ronment AOR may directly access remote data to avoid Function Shipping. RLS use Coupling Facility caching to realize high performance Record Level Sharing access.