it help also in ATTO, 2MB size length, Transfer size >128KB. Write speed grow from 600 to 855MB/s. When i try use other benchmark (HDTune), when i select my RAid Volume i get BSOD. AS SDD cant start.
I test again, http://www.3dmark.com/pcm05/3168391 almost 10k VS! I think Samsung 830 i the best SSD, i tested Vertex 4 128GB and it has poor performance in PCM.