Setting Up RAID Volumes on Cisco UCS C series with Avago/LSI/MegaRAID Controllers
On a C220M4, I discovered that the controller configures the drives as JBOD. Fixing this is easy, but not quite as straightforward as one would expect... especially considering that the controller has been a mainstay of servers for a very long time.
1. Go into the controller firmware (I had to do a control-M before I saw the control-R option):
As you can see, create virtual drives is not an option. Select "Make Unconfigured Good"