Western Digital Technologies, Inc.

Paul E Soderbloom

Davide Giovenzana

Michael Sheperek

Some embodiments described herein are directed to reducing or eliminating latency caused by data zone switches in a rotating magnetic storage device. More specifically, some embodiments described herein are directed to storing parameters associated with different zones in a parameter register in response to one or more received commands.

Allowing fast data zone switches on data storage devices

A disk drive is disclosed comprising a disk comprising a track, wherein the track comprises a sync mark. The disk drive further comprises a head comprising a plurality of read sensors including a first read sensor, and a second read sensor separated from the first read sensor by a down-track spacing. A first time-stamp (TS) is generated after detecting the sync mark using the first read sensor as the disk rotates, and a second time-stamp (TS) is generated after detecting the sync mark using the second read sensor as the disk rotates. A calibration value representing the down-track spacing is generated based on the TSand the TS

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Golden, CO, United States of America

Paul E Soderbloom