Perpendicular recording is a recently implemented technology for data recording, which has come to counter the ever increasing need for more storage space.Current hard disk technology with longitudinal recording has an estimated limit of 100 to 200 gigabit per square inch due to superparamagnetic effect. With longitudinal recording reaching its limit of maximum capacity, perpendicular recording would enable us to store 10 times more data.
Above image demonstrates both the recording techniques, in longitudinal we store the bits of data in west-east direction or horizontally but this impose the limitation of minimum gap between two consecutive bits which we need to maintain in order for data to be in a readable format this is known as superparamagnetic effect.
Perpendicular arrangement or vertical arrangement of bits allows additional room on a disk to pack more data thus enabling high recording densities although superparamagnetic effect still persists.
Hitachi is one of the leading companies which is using this perpendicular recording technique. It expects improvement in read/write power consumption and the fastest power-on-to-ready time for immediacy of data delivery by 20-percent, the new drive to offer greater capacity with the lowest power consumption of any 1.8-inch hard drive, due in large part to a reduction of the disk spin-speed to 3600 RPM from 4200 RPM.
Now the only answer to this ever increasing need of space which is felt globally is we have to find a solution to superparamagnetic effect.
checkout this site for more info.
http://www.hitachigst.com/hdd/research/recording_head/pr/PerpendicularAnimation.html
Above image demonstrates both the recording techniques, in longitudinal we store the bits of data in west-east direction or horizontally but this impose the limitation of minimum gap between two consecutive bits which we need to maintain in order for data to be in a readable format this is known as superparamagnetic effect.
Perpendicular arrangement or vertical arrangement of bits allows additional room on a disk to pack more data thus enabling high recording densities although superparamagnetic effect still persists.
Hitachi is one of the leading companies which is using this perpendicular recording technique. It expects improvement in read/write power consumption and the fastest power-on-to-ready time for immediacy of data delivery by 20-percent, the new drive to offer greater capacity with the lowest power consumption of any 1.8-inch hard drive, due in large part to a reduction of the disk spin-speed to 3600 RPM from 4200 RPM.
Now the only answer to this ever increasing need of space which is felt globally is we have to find a solution to superparamagnetic effect.
checkout this site for more info.
http://www.hitachigst.com/hdd/research/recording_head/pr/PerpendicularAnimation.html
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