Hi there,  Ctrl-R would be for PERC class RAID cards. For your situation, it's a SAS card, to access the SAS6iR BIOS configuration, that would be Ctrl-C 
As topic, I can't find any way to manage the virtual disk such as no Ctrl + R in the startup phase BIOS Revision: 1.10.2 [IMAGE]
How to remove virtual disk from R410