* Graham Knight (grahamk@ast.lmco.com) done spit this rhetoric:
All our filers do NFS using UDP. If i turn the nfs.tcp.enable option to on, does it *add* that capability, or does it do it one way or the other?
It adds the capability. The filer can do any combination of NFSV2/3 and UDP/TCP at the same time. Beware the clients, however, since most will default to TCP if you don't explicitly use UDP. UDP is generally faster than TCP, due to TCP's increased overhead.