You can test mounts using the following. These will not be persistent across reboots but will allow you to test the usability of your NFS shares. You'll need to force NFSv3 using the vers=3 option even though the man page says it defaults to that. Things do not work properly when the version is not explicitly set.
$ sudo mount_nfs -o sync -o vers=3 storeageserver:/yourpool/yourshare localmount/
You'll need to force NFSv3 using the vers=3 option and in most cases you'll want make sure the IO is sync especially for OS X