Patent ID: 8174783
Filing Date: 2012-05-08
Classification: G11B

Abstract:
1. A test system operable to test recording performance of a magnetic disk for certification with a plurality of disk drive systems, the test system comprising: a controller; and an actuator configured with a slider that includes a read head, a write head, and a heating element, wherein the actuator is operable to suspend the slider above the magnetic disk and wherein the slider is operable to access digital data stored on the magnetic disk via the read and write heads, wherein the controller is operable to transfer a first control signal to the heating element to provide a first spacing between the slider and the magnetic disk, wherein the controller is further operable to transfer a second control signal to the heating element to change from the first spacing to a second spacing between the slider and the magnetic disk, and wherein the controller is further operable to simulate the recording performances of first and second disk drive systems with the magnetic disk based on the first and second spacings to certify the magnetic disk for installation with the first and the second disk drive systems.