公开(公告)号：US09761271B1

公开(公告)日：2017-09-12

申请号：US15224886

申请日：2016-08-01

Applicant: Seagate Technology LLC

Inventor： Michael D. Schaff ,  Abhay T. Kataria

IPC: G11B20/18

CPC classification number: G11B20/10481

Abstract: A storage device includes a controller configured to adjusts direct offline scan (DOS) parameters for a scan of a storage region based on a workload affecting the storage region to mitigate data loss due to adjacent track interference (ATI) while also mitigating performance delays due to DOS execution. In one implementation, a type of workload occurring in a region is determined by assessing a distribution of write track counter values corresponding to data tracks in the region.

公开(公告)号：US10228870B2

公开(公告)日：2019-03-12

申请号：US15015899

申请日：2016-02-04

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Michael D. Schaff ,  Abhay T. Kataria

IPC: G06F3/00 ,  G06F3/06

Abstract: Systems and methods for redundant write transfer detection are described. In one embodiment, the systems and methods may include identifying a starting logical block address (LBA) associated with a request to write a first data set to the storage device, storing the first data set on a storage medium of the storage device, storing the identified starting LBA of the first data set in a memory associated with the storage device, identifying a starting LBA associated with a request to write a second data set to the storage device, comparing the starting LBA of the second data set to the starting LBA of the first data set stored in the memory, and upon identifying a match between the starting LBA of the second data set and the starting LBA of the first data set, suspending the request to write the second data set to the storage device.

公开(公告)号：US09099155B1

公开(公告)日：2015-08-04

申请号：US14448844

申请日：2014-07-31

Applicant: Seagate Technology LLC

Inventor： Abhay Kataria ,  Michael D. Schaff ,  Sandeep Bhushan ,  Kevin M. Bailey ,  Phillip Kevin McGinnis ,  Mai Ghaly

IPC: G11B27/36 ,  G11B5/09 ,  G11B20/10 ,  G11B5/02 ,  G11B5/55 ,  G11B20/18

CPC classification number: G11B20/18 ,  G11B5/02 ,  G11B5/5565 ,  G11B20/10009 ,  G11B27/36

Abstract: Apparatus and method for adaptively mitigating adjacent track interference (ATI) effects on a data recording medium. In some embodiments, a write count value is accumulated for a first track responsive to successive writes to a second track on the data recording medium. For each of the successive writes, the accumulated write count value for the first track is incremented by a different variable amount based on temperature. The first track is refreshed responsive to the accumulated write count reaching a selected threshold value.

Abstract translation: 用于自适应地减轻对数据记录介质的相邻轨道干扰（ATI）影响的装置和方法。 在一些实施例中，响应于对数据记录介质上的第二磁道的连续写入，针对第一磁道累积写入计数值。 对于每个连续写入，基于温度，第一轨道的累积写入计数值增加不同的可变量。 响应于达到所选择的阈值的累积写入次数来刷新第一轨道。

公开(公告)号：US20170228174A1

公开(公告)日：2017-08-10

申请号：US15015899

申请日：2016-02-04

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Michael D. Schaff ,  Abhay T. Kataria

IPC: G06F3/06

CPC classification number: G06F3/0619 ,  G06F3/0637 ,  G06F3/064 ,  G06F3/0659 ,  G06F3/0673

Abstract: Systems and methods for redundant write transfer detection are described. In one embodiment, the systems and methods may include identifying a starting logical block address (LBA) associated with a request to write a first data set to the storage device, storing the first data set on a storage medium of the storage device, storing the identified starting LBA of the first data set in a memory associated with the storage device, identifying a starting LBA associated with a request to write a second data set to the storage device, comparing the starting LBA of the second data set to the starting LBA of the first data set stored in the memory, and upon identifying a match between the starting LBA of the second data set and the starting LBA of the first data set, suspending the request to write the second data set to the storage device.