Thank you for all suggestions so far!
JarryG,
So you are saying to do "aprox" 6-8 drives each raid 0+1 (10) gives me about 4 raid sets.
that would be faster to the storage array then say 12 sets of raid 1? is it less work for storage array?
Reason I ask is because normally I would layer on top of each raid 1 to spread out load.