7-mode nfsmounts

From any linux/unix client, check which clients have mounted
which exported volumes from a particular filer.

1. On the filer
filer> options nfs.mountd.trace on

2. On any client
mount an exported volume from the filer.

3. On client
client> ssh root@filer rdfile /etc/messages | grep "in mount"| \
awk '{print $8 " "$18}'