NFS mount options default to TCP protocol

The Network File System (NFS) mount options will now default to use the TCP network transport protocol to communicate with servers. The IBM i NFS client requires that the NFS block input-output daemon is active when an NFS file system using TCP is mounted or accessed.

NFS users will need to start the NFS block input-output daemon with STRNFSSVR SERVER(*BIO) before establishing NFS mounts when the default mount options are used.

Users can return to prior release behavior by adding the 'udp' option to the ADDMFS or MOUNT command options string. The switch that was provided to enable TCP support in the NFS client with the QP0FPTOS API *NFSFORCE option in prior releases will no longer affect NFS client behavior. The ADDMFS or MOUNT options must be used instead.