Samsung 840 EVO Geometry
I recently had a need to upgrade a 500 gig (raided) hard drive to an SSD. I noted that the standard geometry for a 500 gig hard drive presents as 500.1 gigs, while the data sheet for the Samsung 840 EVO MZ-7TE500BW SSD claims to be fractionally smaller on the detailed spec sheets I found.
Happily this is not the case, and it shares the same size as most 500 gig hard drives, ie RawCHS=16383/16/63