Lubricant control in disc drive

Magnetic disc drives for the storage of digital information in computerized systems are known. In such disc drives, a read/write head flies above the surface of spinning disc having magnetic media at its surface. The head is positionable to read and write information on concentric tracks on the disc. Typically the disc and head will have multiple layers to provide a compact arrangement, and the disc drives are sealed and have lubricant distributed over the media surfaces over which the head flies. In a disc drive with a disc spun by a motor and a head positionable over the disc, a disc drive controller alternately leaves the head landed on successive landing spots in a landing zone on the disc for selected stop intervals to remove an increment of lubricant from the head with each stop and then automatically lifts the head by spinning the disc for selected run intervals between the stop intervals so the head does not stick to the disc.