If needed, you can reorganize your volume groups. For example, you can remove the child volumes from a parent volume group.
As you assign LUNs
                    and possibly other volume groups to a selected volume group, Oracle FS System Manager (GUI) provides you with a preview of your selected change in the Volume Groups overview page.
- 
                Navigate to .
            
- 
                Select .
            
- 
                From the Volume Groups tab, select the volume group that you want to move.
            
- 
                Click Modify.
            
- 
                From the Parent Volume Group Name list, select the volume group that you want to be the parent.
                
                    Tip: To move the volume group outside of all custom volume groups, select <none>. 
 
- 
                Click OK.
            
- 
                Click OK.