Over the weekend I migrated my Home Server’s data VHD from three 1TB WD Blacks to five 2TB WD Green hard drives. I set up the storage pool with 1 hot spare and a parity. The response time is a little bit slower then the WD Blacks but I have more room and its only for streaming music and videos.
I get about 50Mb/s to 100MB/s from the array to my data drive on my computer. The average is around 60MB/s and for using the hardware that I already have its just as fast, maybe faster, than a Drobo or a Synology.