TODO

* sudo lshw -C disk -short
* lsblk is interesting
* Controller
* ls /dev/disk/by-uuid
* blkid
* sudo vol_id --uuid /dev/sdb2
* /proc/diskstats
* fdisk -l provides a wealth of info
* smartctl -a /dev/sdb1 - reports if SMART support is available/enabled

* Add these options:
#    parser.add_option("-b", "--bus",
#                      action="store_true",
#                      dest="bus",
#                      default=False,
#                      help="Report bus layout tree")
#    parser.add_option("-i", "--idents",
#                      action="store_true",
#                      dest="idents",
#                      default=False,
#                      help="Report identification numbers for device")
#    parser.add_option("-p", "--partitions",
#                      action="store_true",
#                      dest="partitions",
#                      default=False,
#                      help="Report partition details organized by partition")
#    parser.add_option("-r", "--raid",
#                      action="store_true",
#                      dest="raid",
#                      default=False,
#                      help="Report RAID device members sorted by device name")
#    parser.add_option("-t", "--timings",
#                      action="store_true",
#                      dest="timings",
#                      default=False,
#                      help="Report performance timings")

* Use a readfile() routine instead of just catting mdstat, etc.