Nice write up - but i would bring up to other readers and to yourself that the biggest issue or bottleneck you face in this equation isnt READ IOPs in the first place, its the writes that hammers your storage solution and drives the Wc file location. It's the write IOPs that drives the purchase of how many disks in your SAN or the placement of the write-cache (Wc) (RAM or LOCAL DISK or PVS Server). I havent found any data or any write-ups on how PVS affects the write IOPS and that would be an interesting read. Your thoughts?