Disk drive biasing refresh zone counters based on write...

Details Disk drive biasing refresh zone counters based on write... Disk drive biasing refresh zone counters based on write...

2011-07-05

2011-07-05

Mercedes, Dismery E (Department: 2627)

Dynamic magnetic information storage or retrieval

Monitoring or testing the progress of recording

C360S048000, C360S053000, C360S062000

Reexamination Certificate

active

07974029

ABSTRACT:
A disk drive is disclosed comprising a disk comprising a plurality of tracks, and a head actuated over the disk. A plurality of refresh zones are defined, wherein each refresh zone corresponds to a plurality of the tracks. Data is written to a first refresh zone, and a first zone counter is updated for a second refresh zone at a first rate. Data is written to a third refresh zone, and the first zone counter is updated for the second refresh zone at a second rate different than the first rate.

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