"RAID 10, also known as RAID 1+0, works by splitting the entire group of disks into two or more groups, striping over all the groups, and then creating a local mirror in each group."
The info above is wrong. In Raid 10 you create your raid 1 mirrors first -> then raid 0 stripe the mirrors. What is described in the above quote from the OCAU Raid wiki, is Raid 0+1 not Raid 10.
So correct it? That's why it's a Wiki..