SSD drives contain multiple NANDs. So a well designed SSD controller will take advantage of that (including data striping, essentially turning your drive into

SSD drives contain multiple NANDs. So a well designed SSD controller will take advantage of that (including data striping, essentially turning your drive into a tiny RAID). Of course it is not clear how good your consumer SSD drives are at that, but any server-grade drive you are using in your db server should support parallel reads. It gets tricky though because it reads data so quickly it might saturate the io bandwidth even with a single request, I've never done that math. All I know is that SSDs make my queries magical :)