Greetings.
A good place to start is http://www.cisco.com/c/en/us/td/docs/unified_computing/ucs/c/sw/raid/configuration/guide/RAID_GUIDE.pdf
The configuration varies depending on if the server is a rack server in standalone mode, integrated with UCSM, and the type of raid controller used.
In stand alone mode, there is usually a post time, optionROM utility that can be enabled, that allows for the raid volume configuration.
Thanks,
Kirk
