Question with regards to NFS mount

[Charles T Funderburk]

Not sure if the orginal email was posted.

I've got some odd behavior going on with NFS.

I've got a server running rhel4 that is mounting a share on our EMC NAS. 
This is 220GB nfs share. Here's my /etc/fstab entry that I'm using to 
mount the NAS share from the rhel server.

hounas:/FS04    /nas   nfs    rsize=8192,wsize=8192,hard,intr,tcp

The share seems to mount fine. I check by issuing the following -

[cfunderburk at houwse ~]$ df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
                      2.0G  396M  1.5G  21% /
/dev/cciss/c0d0p1      99M   38M   57M  40% /boot
none                  2.0G     0  2.0G   0% /dev/shm
/dev/mapper/VolGroup00-LogVol04
                      2.0G  231M  1.7G  13% /home
/dev/mapper/VolGroup00-LogVol07
                      4.0G  524M  3.3G  14% /opt
/dev/mapper/VolGroup00-LogVol05
                      4.0G  1.9G  1.9G  51% /usr
/dev/mapper/VolGroup00-LogVol06
                      4.0G  122M  3.7G   4% /var
/dev/mapper/VolGroup00-data
                       45G  8.2G   35G  20% /data
hounas:/FS04          217G   40G  178G  19% /nas

The systems seems to see the correct size, but when looking at the 
properties of the /nas folder through the gnome file manager the file 
manager reports 50GB total space with 39GB used and 11GB free.

I'd appreciate any suggestions or explanations.

Regards,

Charles Funderburk