gmirror and nfs

[Steve Kargl]

With Brandon and Kurt's help, I've successfully constructed
the gmirror of a partition over the network.  Now, onto another
(possibly dumb) question.  

What I have is

n18:kargl[213] df -h
Filesystem           Size    Used   Avail Capacity  Mounted on
/dev/ad4s1a          248M     90M    138M    40%    /
devfs                1.0K    1.0K      0B   100%    /dev
/dev/ad4s1d          3.9G    419M    3.2G    11%    /usr
node10:/home         189G     91G     84G    52%    /usr/home
node10:/usr/local     19G     10G    7.4G    58%    /usr/local
/dev/mirror/data     218G     20G    180G    10%    /data
n18:kargl[214] gmirror status
       Name    Status  Components
mirror/data  COMPLETE  ad4s1e
                       ggate0

In the above, ad4s1e is n18:/dev/ad4s1 and ggate0 is n19:/dev/ad4s1.
On the master node, n10, in my cluster, I tried to do

master:root:[213] mount_nfs -o tcp n18:/data /n18
mount_nfs: /n18: Input/output error

So, it appears the underlying /dev/mirror/data is not compatible
with NFS.  Is ggated capable of exporting the gmirror to another
node?

-- 
Steve