| 摘要 |
A method for recovering data from marginally defective data sites on a disk drive surface. If a user data site is determined to be marginally defective during a read operation, a read error recovery procedure is performed on the marginally defective data site. The read error recovery procedure begins by conditionally reassigning data from the marginally defective data site to a spare data site. Next, the data from the marginally defective data site is rewritten to the marginally defective data site. If the data rewrite operation is successful, the method ends. If the data rewrite operation fails, the conditionally reassigned data from the marginally defective data site is reassigned to the spare data site.
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