Nfs client renames a file on server
nfs.proc.rename
new_filelen
length of new file name
server_ip
IP address of server
prot
transfer protocol
old_name
old file name
new_fh
file handler of new parent dir
new_name
new file name
version
NFS version (the function is used for all NFS version)
old_fh
file handler of old parent dir
old_filelen
length of old file name