| 摘要 |
<p>A technique for authenticating a headerless-ID magnetic disk (900) includes the steps of inserting the headerless-ID magnetic disk having a plurality of defective locations (910) and an encrypted defect map (930) into a removable drive unit, retrieving the encrypted defect map from the magnetic disk, storing the encrypted defect map into a memory (700) in the removable drive unit, decrypting the encrypted defect map to form a defect map identifying the plurality of defective locations, and using the defect map in the memory to provide access to locations on the headerless-ID magnetic disk other than the plurality of defective locations.</p> |
