Interesting! I've got an Ivybridge i5, so that's odd. I did more testing and noticed that read speed wasn't increasing for parallel reads either, it was locked to the lowest speed HDD, a 5200 rpm laptop drive.
But I installed the latest beta and it fixed the problem. Read striping also seems to work now. Thanks a bunch!
I've got a pool setup and it seems to be working fine, but in the Disk Perfomance tab it isn't showing any activity at all. Here's a screenshot. Any idea why it's not reporting anything?
Thanks!