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AssigneeHitachi Global Storage Technologies Netherlands B.V.
InventorsMichael Alex, Hideki Zaitsu
Estimating the term…
To ameliorate the effects of ATE in a HDD, tracks that are potential victim tracks of an aggressor track by virtue of the victim tracks being exposed to a magnetic field associated with a write of the aggressor track are preemptively rewritten after an empirically-determined number of writes to the aggressor track, with the empirically-determined number of writes being selected to ensure that the cumulative effects of aggressor writes do not rise to the level that would be expected to result in a significant amount of lost data on the victim tracks. Alternatively, potential victim tracks can be scanned for error rates and if any error rates violate a threshold, the victim tracks can be rewritten when the disk is idle.
A controller for a hard disk drive (HDD) and executing logic, the logic comprising:
A controller for a hard disk drive (HDD) and executing logic, the logic comprising:
11-16. (canceled)
A chip for a hard disk drive (HDD) having data tracks, wherein at least one victim track is correlated to at least one aggressor track by virtue of the victim track being expected to receive exposure to stray magnetic flux when the aggressor track is written to, comprising:
Dependencies are inferred from the claim text.