Hi When looking in to system specs, About this Mac > more info > Serial - ATA. I see there is a FUJITSU MHZ2160BH FFS G1 title giving specs underneath. Also a Macintosh HD title giving specs underneath, what is the division here ? Are these 2 partitions ? where system DATA is kept in the FUJITSU volume ? and all personal DATA is stored in the Macintosh volume ? How do i manually select which Volume i want my personal DATA to be kept in ? Sorry I'm new to internal components.