It is not RAID vs IDE. It is RAID vs Non-RAID.
A very good place to go for reviews is
www.storagereview.com. The reviews that they do there show the real benefits of RAID as best as possible.
The biggest indicator of whether you want to use RAID or not is typically "Are you impatient when games are loading" or "Do you do LOTS of video or audio editing". Other than this, you will not see much benefit.
There are a few things to keep strongly in mind though:
- Never bother to use more than 2 drives on the "Fake" RAID controllers that come on mobos or that you get for $20. "Fake" RAID uses the system CPU to process its i/o transactions. It also does not have read/write cache built onto the controller. Real RAID cards, even for IDE, come with at least a RISC processor build right on them. They also have at least 16MB of r/w Cache. Some even have as much as 128MB. Two devices on one IDE channel cannot operate in parallel. This is really bad for overall performance. Real IDE RAID cards come equipped with an IDE connector for each drive. This allows parallel communication to and from all drives.
- If you do use RAID 0, buy a tape backup drive or burn all of your sensitive data often. RAID 0 is striping with no parity. When one drive dies you loose ALL data on BOTH drives.
Good luck and have fun!!!
Jason.