Browse Prior Art Database

The method to skip a defective track by scannig Primary Defect Map

IP.com Disclosure Number: IPCOM000015890D
Original Publication Date: 2002-Apr-04
Included in the Prior Art Database: 2003-Jun-21

Publishing Venue

IBM

Abstract

Terminology Defective Track : A data track which has no available sector or has a servo stability problem PDM : Primary Defect Map Disclosed is a method to skip a defective track of Hard Disk Drive(HDD) by scanning PDM, and this never make physial boundary of data zone move by defectvie tracks. Normally, a defective track is registered in the alternative cylinder table or track table to avoid seeking to it. Both merit and demerit about this method is given below. [Merit]