CA-L-Serv › CA-L-Serv Operation › The Kernel › File Server › Sharing VSAM Files in a Multi-System Environment

Sharing VSAM Files in a Multi-System Environment

When used with the communications server, the file server enables client applications to share VSAM files across systems without physically sharing DASD. One system acts as the host system and other systems act as remote systems. The communications server routes I/O requests from remote systems to the host system, where the file server performs all I/O operations against those files.

For performance reasons, CA recommends that processes that involve large numbers of I/O operations should execute on the host system rather than remote systems.