Control method of magnetic disk unit and magnetic disk unit for use in such method

摘要

In a magnetic disk unit having a load/unload function of a magnetic head for a magnetic disk, the magnetic disk and the magnetic head are prevented from contacting with each other and damage thereto is avoided by utilizing a shallow dual-step subambient pressure slider and carrying out loading/unloading at a rotational speed lower than a rated rotational speed of the normally operated magnetic disk at which writing and reading (R/W) data to and from the magnetic disk by the magnetic head is done.