Invention Grant
- Patent Title: Forward corrupted track detection and by-pass for shingled magnetic recording drives
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Application No.: US15614903Application Date: 2017-06-06
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Publication No.: US09916859B2Publication Date: 2018-03-13
- Inventor: Junghwan Shin , Jae Ik Song , Dong Hyuck Shin , Eun Yeong Hong
- Applicant: SEAGATE TECHNOLOGY LLC
- Applicant Address: US CA Cupertino
- Assignee: SEAGATE TECHNOLOGY LLC
- Current Assignee: SEAGATE TECHNOLOGY LLC
- Current Assignee Address: US CA Cupertino
- Agency: Holland & Hart LLP
- Main IPC: G11B27/36
- IPC: G11B27/36 ; G11B5/02 ; G11B20/18

Abstract:
Systems and methods for forward corrupted track detection and by-pass are described. In one embodiment, a storage system comprising a storage controller performs a read operation for a target track of a shingled magnetic recording (SMR) disk drive and detects a read operation failure of the read operation for the target track. The storage controller also performs a boundary track read operation on one or more tracks including or adjacent to the target track and detect a forward corruption area based on the boundary track read operation. In another embodiment, a method is provided that includes detecting a read operation failure of a read operation for a track of a disk drive and performing a boundary track read operation on one or more tracks including or adjacent to the target track. The method also includes detecting a forward corruption area based on the boundary track read operation.
Public/Granted literature
- US20170352377A1 FORWARD CORRUPTED TRACK DETECTION AND BY-PASS FOR SHINGLED MAGNETIC RECORDING DRIVES Public/Granted day:2017-12-07
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