I have an existing drive with my OS and data on it, because of shortage of storage, I bought two Samsung 2TB drives to form a RAID 1 configuration. I understand that RAID 1 is a redundancy config. - I was wondering if the motherboard Gigabyte EP45 UD3P lets me keep using the current single drive for my OS and add those two drives in RAID 1 for storage?

Could you recommend some tutorial on how this is done?

Thank You