The first test in the Intel NAS performance testing suite is the HD playback test. For some strange reason RAID 1 came back as the fastest in each of the three tests and averaged 100.8 mb/s. RAID 0, which I figured would be the fastest came back at just under 90 mb/s.
When writing to the RAID arrays we see the performance hits come into play. With a RAID 1 array the data is written to both disks at the same time and it takes a massive hit. RAID 0 leads in this test as data is written across both disks with no additional overhead as there is no fault tolerance.
RAID 0 has the best write speed but lacks the fault tolerance, or the ability to retain data if one of the drives fails. RAID 10 comes in 1st in the content creation test as it has less overhead than RAID 5 or RAID 6.
In the office productivity tests the high read and write speeds of RAID 0 propel it to 1st place. Take note of the performance of the RAID 6 array. The extra processing that it takes to maintain a RAID 6 array is visible in this test.