Description of problem: on the volumes tab, need to gray-out the create button, since it looks really bad when user click 'create', and there is an empty drop-down for the 'volume cluster'. I would also live if you gray-out the drop-down and add a tool tip with a link to create cluster dialogue.
may be related to bug 837823
Closing old bugs. If this issue is still relevant/important in current version, please re-open the bug.