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> I have read something about Raid-0 to the effect that the size of the 2 disk joining together also has to be of equal size. Can anyone elaborate? I have done one but one disk is 20G and the other is 15G. Does it mean that the parity will not be distributed evenly? Or in fact the I/O performance will not be optimum?
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> Also if joining 3 disk together the speed improvements will be roughly increased by 3 folds given the 3 disks of equal size in a Raid-0 setup??
man 4 ccd

much simpler than raid(4) if you want only RAID-0