Configure Hp Proliant ML110 Sata Raid

Hi Team

I had purchased Hp Proliant Ml10 server with 4 Gb Ram and 250 + 250 Gb Harddisk. I want to create mirror between these 2 harddisk .
Enabling Sata Raid in Setup O/s is Installed . In the end Sata RAid controller is Installed.

Now how to check if both the harddisk are mirrored.