公开(公告)号：US10860490B2

公开(公告)日：2020-12-08

申请号：US16272249

申请日：2019-02-11

Applicant: Seagate Technology LLC

Inventor： Jason M. Feist ,  Mark Allen Gaertner ,  Dipeshkumar J. Purani ,  Anil Kashyap ,  Wei Zhao

IPC: G06F12/0871 ,  G06F12/0873

Abstract: Zones of a magnetic recording medium are allocated as a respective plurality of distributed media caches arranged in a predetermined order. For each of a plurality of caching events, cache data is written to one or more of the distributed media caches. A next of the media caches in the predetermined order is selected for the next caching event.

公开(公告)号：US20190171571A1

公开(公告)日：2019-06-06

申请号：US16272249

申请日：2019-02-11

Applicant: Seagate Technology LLC

Inventor： Jason M. Feist ,  Mark Allen Gaertner ,  Dipeshkumar J. Purani ,  Anil Kashyap ,  Wei Zhao

IPC: G06F12/0871 ,  G06F12/0873

Abstract: Zones of a magnetic recording medium are allocated as a respective plurality of distributed media caches arranged in a predetermined order. For each of a plurality of caching events, cache data is written to one or more of the distributed media caches. A next of the media caches in the predetermined order is selected for the next caching event.

公开(公告)号：US09852754B1

公开(公告)日：2017-12-26

申请号：US15281770

申请日：2016-09-30

Applicant: Seagate Technology LLC

Inventor： Richard E. Martin ,  Abhay T. Kataria ,  Dipeshkumar J. Purani ,  Richard A. Herr ,  Alexander T. Le ,  Sandeep D. Sequeira ,  LingZhi Yang ,  Ximin Shan ,  Salman Al Saif

IPC: G11B5/09 ,  G11B5/55

CPC classification number: G11B5/5547 ,  G11B5/40

Abstract: Apparatus and method for managing a data storage device during extended idle conditions of the data storage device in which host access commands are not being received or serviced. In some embodiments, upon detection of an idle condition, a control circuit identifies a selected data transducer of the data storage device and a corresponding initial radial position of the data transducer with respect to an associated rotatable data recording surface. The control circuit performs a serpentine seek operation during the idle condition to gradually advance the selected data transducer in a selected radial direction across the data recording surface beginning at the initial radial position and ending at a final radial position. The serpentine seek operation prevents the transducer from being maintained in a stationary position during the idle condition, reducing the likelihood of damage through thermal asperity contact events, lubrication disturb, wear, etc.

公开(公告)号：US20170358326A1

公开(公告)日：2017-12-14

申请号：US15687942

申请日：2017-08-28

Applicant: Seagate Technology LLC

Inventor： Richard August Budde ,  Dipeshkumar J. Purani

IPC: G11B33/14 ,  G11B25/04 ,  G11B5/48

CPC classification number: G11B33/1406 ,  G11B5/4833 ,  G11B25/043 ,  G11B33/1426 ,  G11B33/1473

Abstract: Various aspects of the present disclosure are directed toward a disc drive actuator assembly including an e-block, a plurality of bearings, and one or more heat transfer components. The heat transfer component(s) operates to conductively draw heat from the plurality of bearings through the e-block, and convectively dissipate the heat into an atmosphere in contact therewith. The heat transfer component(s) mitigates temperature rise of the bearings during operation of a disc drive, thereby mitigating bearing lubricant outgassing from within the bearings.

公开(公告)号：US09747955B2

公开(公告)日：2017-08-29

申请号：US14804858

申请日：2015-07-21

Applicant: Seagate Technology LLC

Inventor： Richard August Budde ,  Dipeshkumar J. Purani

IPC: G11B33/14 ,  G11B5/48

CPC classification number: G11B33/1406 ,  G11B5/4833 ,  G11B25/043 ,  G11B33/1426 ,  G11B33/1473

Abstract: Various aspects of the present disclosure are directed toward a disc drive actuator assembly including an e-block, a plurality of bearings, and one or more heat transfer components. The heat transfer component(s) operates to conductively draw heat from the plurality of bearings through the e-block, and convectively dissipate the heat into an atmosphere in contact therewith. The heat transfer component(s) mitigates temperature rise of the bearings during operation of a disc drive, thereby mitigating bearing lubricant outgassing from within the bearings.

公开(公告)号：US20170220473A1

公开(公告)日：2017-08-03

申请号：US15008736

申请日：2016-01-28

Applicant: Seagate Technology LLC

Inventor： Jason M. Feist ,  Mark Allen Gaertner ,  Dipeshkumar J. Purani ,  Anil Kashyap ,  Wei Zhao

IPC: G06F12/08 ,  G06F3/06

CPC classification number: G06F12/0871 ,  G06F12/0873 ,  G06F2212/1036

Abstract: Zones of a magnetic recording medium are allocated as a respective plurality of distributed media caches arranged in in a predetermined order. For each of a plurality of caching events, cache data is written to one or more of the distributed media caches. A next of the media caches in the predetermined order is selected for the next caching event if the selected caches are not a last in the predetermined order. Otherwise a first media cache is selected in the predetermined order.