5
R720 BIOS "Device Settings" Hangs
(alien.top)
Possibility your RAID card was flashed to IT mode/with LSI firmware?
The RAID utility won't work if it's not running Dell firmware.
Do you know how to verify this?
I work with 720's on a regular basis. I've not seen this particular issue, but I would look at the logs first, then look to see if there is a bios update available. Can you go in through iDRAC and see if those vdisks are there, or if it throws an error as well?