testing raid-1

What is the easiest way to test a RAID-1 to see if everything is done and set up correctly?   Please reply to me on this, all help is greatly appreciated! Tim

Setting up Raid 1

Hello, I'm a new user to the Linux area, and trying to learn how to setup Raid 1 for 2 SCSI hard drives.  I'm using RedHat 6.1 Professional version.  If you could please give me some examples or explain to me how to most efficiently do this, that would be great!   Much appreciated. Tim Shank