My C6220 is not showing any drives in setup and Ctrl + i is not launching the onboard sata controller configuration utility. I have verified that the storage backplane is connected properly and that all the drives work. I have poured over the C6220 manuals, but didn't see anything missing. Then I found this on google, are there any similar cables required on the C6220 as for the c6320 for the onboard sata controller?www.manualslib.com/.../Dell-Poweredge-C6320.html
The server was missing the stat cable bundle running from the front of the board by the mid-plane bus to the back of the board. System was erroneously identified as C6220 rather than C6220ii which it is.