I didn't init 0 on the big file, but as I was testing I tried a 0 init'd 256mb file and it also didn't work. here are the hd tach results for my two drives: Drive C:, ATA 160gb single drive on mobo IDE: http://www.nischan.com/temp/aivas-c.jpg Drive D:, RAID5 3 TB array using Areca ARC-1160ML2: http:...