HDTach Comparison:



The average read speed takes a huge jump upwards when using RAID 0 with a smaller stripe size, while the write speeds only show minor improvements that increases with the use of bigger stripe sizes. The 1k stripe size even shows a big hit in write speeds, as the data is split between the 2 drives every other k!
The Raid1 setup shows read speeds on par with the none-raid benches, the write speeds take a minor hit, due to the fact that data needs to be written to 2 drives simultaneously.
The 8Mb cache does create a small advantage but nothing spectacular.



Not to be dismissed: the CPU power usage! A smaller stripe size equals bigger load on the CPU, with the exception of the 1k stripe size. RAID 1 also demands alot of the CPU when compared to the none-raid setup.
The 8Mb cache drives create a little more overhead for the CPU as during all tests it required 1-2% more CPU power.



Some mixed results for the Access time tests, the 2Mb has lower access times except for the one setup where the 8Mb cache has the best numbers. A stripe size of 64k seems to be sweet spot the 8Mb cache drive, while the 2Mb cache shows the best of itself with a 512k SS (stripesize).


Does Sandra give us different results? on to next page...