How to start NFS after creating gluster volume in Red Hat Gluster Storage 3.0 ?

Issue

• How to start NFS after gluster volume create ?

• Why NFS is not online after executing "gluster volume status" ?

~Snippet from terminal,

[root@rhs1 bricks]# gluster volume create test_vol replica 2 rhs1:/bricks/data rhs2:/bricks/data
volume create: test_vol: success: please start the volume to access data

[root@rhs1 bricks]# gluster volume start test_vol
volume start: test_vol: success

[root@rhs1 bricks]# gluster volume status
Status of volume: test_vol
Gluster process                             TCP Port  RDMA Port  Online  Pid
------------------------------------------------------------------------------
Brick rhs1:/bricks/data                    49152     0          Y       3124 
Brick rhs2:/bricks/data                   49152     0          Y       2782 
NFS Server on localhost                  N/A       N/A        N       N/A  
Self-heal Daemon on localhost       N/A       N/A        N       N/A  
NFS Server on rhs2                          N/A       N/A        N       N/A  
Self-heal Daemon on rhs2               N/A       N/A        N       N/A  
NFS Server on rhs3                          N/A       N/A        N       N/A  
Self-heal Daemon on rhs3               N/A       N/A        N       N/A