Enabling NFS over TCP on a NetApp
Set the option nfs.tcp.enable
. This is not a default.
If you are getting errors like:mount: RPC: Authentication error; why = Client credential too weak
You will have to set the option nfs.mount_rootonly
. The problem is that mount requests are coming from ports higher than 1024 and are getting discarded as client (ie non-root level) requests. This might be happening because client-level programs are making the requests, or you are making so many simultaneous mount requests that the ports below 1024 are saturated, resulting in requests from "high" ports. (Referred to internally as the ypfix.sh syndrome.)