I have the following hard drives: Seagate Barracuda 7200.9 ST3500641AS 500GB 7200 RPM 16MB Seagate Barracuda STBD3000100 (3tb) 7200 RPM 64 MB cache OCZ-Vertex4 120GB Solid State Drive The SSD is for the OS and apps. The 3tb is for storage. And the 500GB is for both apps, games, and storage. Can I put any of or all of these drives in a RAID? (I don't know a lot about RAID). Which RAID would be best? What options do I have? How would I do it?
You need equal size drives for raid. Raid 1 is usually adequate for a desktop with some redundancy or raid0 if you want a fast games drive
You may be able to create a 1TB (500GBx2) RAID 0 array from the 2 hard drives but it requires removal of all data, repartitioning and then putting the data back on. Using the larger drive will slow the RAID array if they need to be accessed simultaneously. I hope you are aware that using RAID 0 gives you no redundancy. This means that if there is any failure, you lose all data on the array, no matter which drive the failure occurs on. I wouldnt bother putting the SSD in a RAID array, it will be faster to use the SSD by itself.
Yeah you can make a 500GB partition on the 3TB disk and create a striped or mirrored array, but you're better off with separate drives.
Dtto what has been said above. You'd be better off as you are now imo. I'm sure it's lightening fast anyway with that SSD.