So a disk spinning at 15000 rpm compared to my current hard drive spinning at 7000 rpm does better than a SSD still ? This is my current hard drive i posted earlyer i do believe http://www.hgst.com/hard-drives/enterprise-hard-drives/enterprise-sata-drives/ultrastar-7k4000 Posted at Nginx Forum: http://forum.nginx.org/read.php?2,251186,251267#msg-251267