not sure if that will give you exactly what you are asking but could narrow down your query  server_netstat server_4 | grep nfs
Hi All,  Is there a command on the celerra that can list what servers currently have an nfs export actively mounted?  Im not looking for servers that may have permission to mount an export.  I am looking for what currently has it mounted.  Any help is appreciated.  Thanks!
NFS - servers that have an nfs mount