Doing NFS exports to a PC client normally requires and authentication daemon running on the host system: pcnfsd on unix systems, just referred to as pcnfs on EMC Celerra So it's more complicated than setting up NFS for Unix clients.
do a powerlink (powerlink.emc.com) search for: pcnfs celerra
look for a pdf document titled: Configuring NFS on Celerra
one of the appendixes: NFS Authentication for PC Clients
There's also a primus article regarding pcnfs: emc43806, below is the gist of the article:
# Set up a user account.
# Open the /nas/server/server_x/netd file with a text editor, add pcnfs on a separate line, and save the file.
# Where x is the number of the Data Mover.
# Reboot the Data Mover.
# Export a file system for the user(s) to access.
# On the PC, launch the PC-NFS. Refer to the vendor's respective user manual for details on what is required
at this point for setup and/or login.
# Enter the username and password as required by the software package.