[citation][nom]ProDigit80[/nom]I would say one dual head drive (eg: 500GB) would cost considerably less than 2 drives (2x250GB). It will run cooler,consume less, and will be about as fast as a raid setup of 2x250GB.It will also be smaller in size,and could be made size compatible with normal 3,5" drives easily.It would make sense for power efficient servers.I can't speak of heat issues, but if you would program the driver of the disk to not have the 2 arms read/write on the same ring or sector, that may reduce performance little, but it might increase data accuracy.Then again, if the ring has been preset, and would be a sector of about 500MB, the drive could be equipped with 256MB ram memory, that could buffer the data of the second arm (in case a linear file-read is preferred). Anyways, as I hear it from seagate, it's a technology that never made sense back in the days, but today it does,and is easy to create.I think it's perhaps a meager excuse why noone actually took time to further develop that theory or patent.Instead, they buy a patent and not use it? What good does that do?[/citation]
Yeah, it may have been difficult in 1996, but this is a cop out with today's tech ! Tuan, please call them on this BS and ask them to give us a reason that is concurrent with 2009. Technologically this should be easy today.