Dual-surface RRO write in a storage device servo system
2024
Online
Patent
A method for writing repeatable run-out (RRO) data, to surfaces of a rotating magnetic storage medium in a storage device having two read channels, includes detecting, with a first head, using a first read channel, a servo sync mark (SSM) on a first track on a first surface, establishing a recurring servo-gating signal at a successive fixed interval from the SSM, detecting, with the first head, servo signals from the first track on occurrence of the recurring servo-gating signal, processing the servo signals from the first track, to generate first positioning signals for positioning the first head relative to the first track, following a similar procedure with a second read channel having a second head to generate second positioning signals for the second read head, and writing first and second RRO data to servo wedges of the first and second tracks according to the respective positioning signals.
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Dual-surface RRO write in a storage device servo system
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Autor/in / Beteiligte Person: | Marvell Asia Pte Ltd |
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Veröffentlichung: | 2024 |
Medientyp: | Patent |
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