Patent ID: 6094318
Filing Date: 2000-07-25
Classification: G11B

Abstract:
A method for controlling a data write operation in a disk drive in which servo information is written on a medium, said method comprising the steps of:reading a plurality of amplitude levels of said servo information from said medium;comparing a sum of said plurality of amplitude levels of said servo information with a prescribed setting value;when said sum of said plurality of amplitude levels of said servo information is less than said prescribed setting value, determining that a flying height of a transducer head from said medium is not suitable for said data write operation, and setting a write disable flag to change the disk drive to a write non-ready state for said data write operation;when said sum of said plurality of the amplitude levels of said servo information is not less than said prescribed setting value, indicating that the flying height of said transducer head from said medium is suitable for said data write operation, changing the disk drive when in the write non-ready state from the write non-ready state to a write ready state enabling said data write operation andwhen said sum of said plurality of amplitude levels is not less than said prescribed setting value, enabling said data write operation.