We set up a RAID 0 array with two 120 GiB SSDs to see which is the best stripe size configuration, and also the gain in performance you should expect over a single drive.

Here is a snippet: "With the price of the SSDs dropping, you probably already thought about installing two SSD units on your computer and configuring them as a RAID 0 array, which, at least in theory, increases the performance of the SSD. But what is the real-world performance gain of such configuration? Does the stripe size affect performance? If so, what is the best number to use? These some of the questions we will try to answer in this article."



Link: HardwareSecrets