RAID 1 Stripe sizes

[Mr. Pedantic]

What are the differences between the different stripe sizes in a RAID 0, and which one should offer the best performance? I'm currently running a RAID 1 but I was thinking of changing to a RAID 0 since my data is probably more in danger from me than from the hard drives failing. I've got 2 Western Digital 640GB drives.

EDIT: Sorry, in the title I mean RAID 0...

 

[BENN0]

This is what the help file from my controller has to say about it:
"The stripe size is useful for fine-tuning the performance of a given logical drive. In complicated environments, try various stripe sizes and use the one that performs the best for your situation. In a mixed read/write environment the default stripe size is recommended. In an environment with more reads than writes, larger stripe sizes are typically better. In an environment with more writes than reads using RAID 0, RAID 1, or RAID 1+0, larger stripe sizes are recommended. For RAID 5 or RAID 6, smaller stripe sizes are recommended."

 

[Åndhrimnir]

Put your essential files on a backup drive before you mess with the array - drives always fail right after all of your redundancy gets removed