Until quite recently there was a package, palimpsest, which was used to graphically view the layout of the drives on the system, making it easy to see RAID, and volume groups, etc, and view the health of the individual drives using SMART data. Later this was renames gnome-system-disk (is this a fork, or did GNOME just grab it as their own?) but was sill available.
I never fould the action items in the program all that useful, I prefer to use other tools to creat RAID arrays, play with LVM, etc, but the tool was really useful to visualize complex storage setups, particularly if you are going into a system you didn't set up, or did so long ago. What's the tool which replaces this? This should be maintained by Redhat as a system tool, since I can't find anything in RHEL7 which seems to provide the information, and I am considering upgrading a server farm, with at most any two servers alike. They bought what IBM told them was the best buy, some have hardware RAID, some software RAID, some whatever dm sets up.
There must be some visualization tool, right?