I have a new, built PC that has one 500gb hard drive. I wanted to set up RAID 0, so I took a 80gb hard drive from my old (and i mean very old) PC. Now, I do know that it is NOT a good idea to set up RAID with two hard drives that aren't identical, but what happens if one hard drive (the 80gb one) becomes full? What will happen to my other drive? If there is an issue, like the array will stop working, then i can switch to JBOD or buy another 500gb drive.