Hitachi Global Storage Technologies will later this year begin selling this hard drives which is based on perpendicular recording, a yet-to-be commercialized recording method that should enable engineers to continue increasing drive storage capacity beyond today's limits, according to the company.
"Without (perpendicular recording), existing technology will stall at about 120- or 130 gigabits per square inch," says John Best, chief technologist at Hitachi Global Storage Technologies. "Longitudinal recording is running into significant problems with bit size."
Hitachi demonstrated the industry's highest data density at 230 gigabits per square inch (Gb/in2) on perpendicular recording. When fully realized over the next 5-7 years, perpendicular recording could enable a 10-fold increase in data densities over longitudinal recording, paving the way for new heights in capacity such as a 60 GB one-inch drive.