Question: what is the difference between raid 6 and raid 10?
Answer: RAID 6 gives more usable capacity the more disks you add. Because RAID 10 mirrors everything, an array requires double the disk capacity of the data to be stored. ... For example, if you increased the number of disks in a RAID 6 array from four to eight, the space consumed by parity data would decrease from 50% to 25%.