Tien -
Looking at the man page - it should work ?
"When run from a vfiler context, (for example, via the vfiler run command), nfsstat operates on the concerned vfiler. Note that if vfilers are licensed when using the -h and -l options it is necessary to run this command from a vfiler context, since the interpretations of the hosts are dependent on the vfiler. "
I hope this response has been helpful to you.
At your service,
Eugene E. Kashpureff, Sr.
Independent NetApp Consultant http://www.linkedin.com/in/eugenekashpureff
Senior NetApp Instructor, FastLane US http://www.fastlaneus.com/
(P.S. I appreciate 'kudos' on any helpful posts.)