Description of problem:
Selection of the gluster network role is not persistent. If a user attaches this network to an interface, it is ignored when adding bricks.

Version-Release number of selected component (if applicable):
rhsc-3.1.0-0.62.el6.noarch

How reproducible:
Always

Steps to Reproduce:
1. Create a new network.
2. Now check the check box Assign and select the network to be a Gluster Network.
3.

Actual results:
Gluster Network is not selected and bricks added to volume will not be using the glusternw traffic. user has to go and select it manually.

Expected results:
Gluster Network should be selected and user should be able to add bricks using this network.

Additional info: