公开(公告)号：US10249339B1

公开(公告)日：2019-04-02

申请号：US16020501

申请日：2018-06-27

Applicant: Seagate Technology LLC

Inventor： Riyan Mendonsa ,  Jason Bryce Gadbois ,  Mark Allen Gaertner ,  Guy T. Lawrence ,  Bruce Douglas Buch

IPC: G11B27/36 ,  G11B21/08 ,  G11B5/012

Abstract: One or more magnetic recording disks are coupled to a spindle motor, each of the disks having opposing recording surfaces. Two or more actuators are moveable independently over at least a first recording surface of the one or more disks. A first actuator of the two or more actuators comprises a first write head and a first read head. A second actuator of the two or more actuators comprises at least a second read head and may include a second write head. A controller is coupled to the two or more actuators and configured to write data to a track on the first recording surface using the first write head, and perform a read operation on the data written to the track using the second read head. The controller is also configured to verify that the data was successfully written to the track in response to the read operation. The read operation can be performed within less than one revolution of the first recording surface after the write operation.

公开(公告)号：US10037779B1

公开(公告)日：2018-07-31

申请号：US15798588

申请日：2017-10-31

Applicant: Seagate Technology LLC

Inventor： Riyan Mendonsa ,  Jason Bryce Gadbois ,  Mark Allen Gaertner ,  Guy T. Lawrence ,  Bruce Douglas Buch

IPC: G11B27/36 ,  G11B5/09 ,  G11B21/08 ,  G11B5/012

CPC classification number: G11B21/08 ,  G11B5/012 ,  G11B2220/20

Abstract: One or more magnetic recording disks are coupled to a spindle motor, each of the disks having opposing recording surfaces. Two or more actuators are moveable independently over at least a first recording surface of the one or more disks. A first actuator of the two or more actuators comprises a first write head and a first read head. A second actuator of the two or more actuators comprises at least a second read head and may include a second write head. A controller is coupled to the two or more actuators and configured to write data to a track on the first recording surface using the first write head, and perform a read operation on the data written to the track using the second read head. The controller is also configured to verify that the data was successfully written to the track in response to the read operation. The read operation can be performed within less than one revolution of the first recording surface after the write operation.