A very general raid question.

Hey, I am sure this is a really basic question but i dont know the answer. So atm i have a 1tb hard drive and i took out a old sata hardrive from a laptop (30gb) and i just want to use it as storage nothing special. SoDo i have to set up a raid to use it as storage?I was told this by a friend but i didn't really believe it i thought i just plug in the drive the same way my current drive is plugged in.

Ty for the time
~Dayton