Hey all, I wanted to pick your brains on something I'm running into with my Mac Pro 3,1. I have am running Yosemite on a 2008 Mac Pro. I have a Velocity duo card with 2 Samsung 850 Pro hard drives. I'm running them in RAID 0. 1. First of all, its not running nearly as fast as I expected. 2. I get a lag or hang up every time I wake up my computer. 3. Other hard drives in my mac pro seem to pause now, delay in accessing them, etc. Generally it just feels sluggish compared to a single samsung pro 850 running on the Solo card. Any thoughts or issues others had to overcome with this setup. I've searched around and it seems everyone has this setup working really well. Note: I've attached a disk speed test screenshot. These test are ALL over the place. I never get consistent results, not sure if that matters - just a note. The highest I ever got on write and read speeds is around 650MB/s. Thanks for any advice.