This post will tell you what storage per disk is.
Hard disk manufactures can enlarge the disk capacity by two methods.
One is increasing the amount of storage disk.
The other method is increasing storage per disk.
It can be seen that the storage per disk has an effect on disk capacity.
The increase of disk capacity means manufactures should create more tracks.
And this slows down the seek time of the hard disk.
The storage per disk is gradually enhanced along with the advancement of hard disk technology.
By 2002, IBM, West Digital, Seagate and Samsung all launched hard disk with 60GB capacity.
This improved the storage per disk of hard disk to a new height.
However, peoples demand for hard disk capacity cannot be satisfied.
