公开(公告)号：US20220375497A1

公开(公告)日：2022-11-24

申请号：US16861027

申请日：2020-04-28

Applicant: Seagate Technology LLC

Inventor： Xiong Liu ,  Quan LI ,  Li Hong ZHANG

IPC: G11B5/60 ,  G11B20/18

Abstract: A storage device includes a controller that determines a degree of data degradation for a data track targeted by a pending read command and sets a head/media clearance parameter for execution of the read command based on the determined degree of data degradation for the data track, the head/media clearance parameter providing for a greater head-media separation when the determined level of degradation is lower than when the determined level of degradation is higher.

公开(公告)号：US20220366937A1

公开(公告)日：2022-11-17

申请号：US17684047

申请日：2022-03-01

Applicant: Seagate Technology LLC

Inventor： Xiong LIU ,  Quan LI

IPC: G11B20/10

Abstract: The technology disclosed herein pertains to a system and method for managing off-track retry. An implementation of a method of determining offset direction for read off-track retry includes storing analog to digital converter (ADC) values of data read from a data sector by a data reader in a read channel buffer, calculating an indicator value of the distribution of the ADC values, determining an amount of offset for the data reader based on the indicator value, and moving the data reader by the amount of offset before performing a read retry operation.