Starting multiple servers

You can start more than one z/OS NFS server on a single z/OS system, but they must be at the same release level. If a server is running, attempts to start another release level of the server on the same system will fail.

Note: The NFS server and NFS client can be at different release levels on the same system; there is no requirement for server and client release levels to match.

Within a sysplex, you can have different levels of NFS servers and clients on different systems. However, byte-range locking and file share reservations are not communicated across systems within the sysplex. Therefore, in sysplex environments where byte range locking and share reservations are required for accessing MVS data sets with NFS, IBM recommends that only one NFS server be started.