公开(公告)号：US20190050417A1

公开(公告)日：2019-02-14

申请号：US15671469

申请日：2017-08-08

申请人： Seagate Technology LLC

发明人： Jackson Ellis ,  Jeffrey Munsil ,  Carl Forhan

IPC分类号： G06F17/30 ,  G06F3/06 ,  G06F21/78 ,  G06F21/62

摘要： A method includes compressing input data to form compressed data and comparing a size of the compressed data to a maximum allowed size determined from a fixed sector size for a lower tier of the multi-tier storage system and a minimum pad length for a pad that is stored in the same sector as the compressed data when the compressed data is migrated to the lower tier. When the size of the compressed data is greater than the maximum allowed size, the input data is stored instead of the compressed data in an upper tier of the multi-tier storage system.

公开(公告)号：US10783119B2

公开(公告)日：2020-09-22

申请号：US15671469

申请日：2017-08-08

申请人： Seagate Technology LLC

发明人： Jackson Ellis ,  Jeffrey Munsil ,  Carl Forhan

IPC分类号： G06F17/00 ,  G06F16/174 ,  G06F3/06 ,  G06F21/78 ,  G06F21/62

摘要： A method includes compressing input data to form compressed data and comparing a size of the compressed data to a maximum allowed size determined from a fixed sector size for a lower tier of the multi-tier storage system and a minimum pad length for a pad that is stored in the same sector as the compressed data when the compressed data is migrated to the lower tier. When the size of the compressed data is greater than the maximum allowed size, the input data is stored instead of the compressed data in an upper tier of the multi-tier storage system.

公开(公告)号：US10394493B2

公开(公告)日：2019-08-27

申请号：US15638632

申请日：2017-06-30

申请人： Seagate Technology LLC

发明人： Alex Tang ,  Leonid Baryudin ,  Michael Scott Hicken ,  Mark Ish ,  Carl Forhan

IPC分类号： G06F12/00 ,  G06F3/06 ,  G06F12/02 ,  G11B5/012

摘要： Apparatus and method for managing data in a hybrid data storage device. The device has a first non-volatile memory (NVM) of solid state memory cells arranged into a first set of garbage collection units (GCUs), and a second NVM as a rotatable data recording medium arranged into a second set of GCUs each comprising a plurality of shingled magnetic recording tracks. A control circuit combines a first group of logical block units (LBUs) stored in the first set of GCUs with a second group of LBUs stored in the second set of GCUs to form a combined group of LBUs arranged in sequential order by logical address. The control circuit streams the combined group of LBUs to a zone of shingled magnetic recording tracks in a selected one of the second set of GCUs. A combined media translation map identifies physical addresses in both the first and second NVMs.

公开(公告)号：US20190004739A1

公开(公告)日：2019-01-03

申请号：US15638632

申请日：2017-06-30

申请人： Seagate Technology LLC

发明人： Alex Tang ,  Leonid Baryudin ,  Michael Scott Hicken ,  Mark Ish ,  Carl Forhan

IPC分类号： G06F3/06 ,  G06F12/02 ,  G11B5/012

CPC分类号： G06F3/0685 ,  G06F3/0605 ,  G06F3/0608 ,  G06F3/061 ,  G06F3/064 ,  G06F3/0652 ,  G06F3/0679 ,  G06F3/0689 ,  G06F12/0246 ,  G06F2212/214 ,  G06F2212/217 ,  G11B5/012

摘要： Apparatus and method for managing data in a hybrid data storage device. The device has a first non-volatile memory (NVM) of solid state memory cells arranged into a first set of garbage collection units (GCUs), and a second NVM as a rotatable data recording medium arranged into a second set of GCUs each comprising a plurality of shingled magnetic recording tracks. A control circuit combines a first group of logical block units (LBUs) stored in the first set of GCUs with a second group of LBUs stored in the second set of GCUs to form a combined group of LBUs arranged in sequential order by logical address. The control circuit streams the combined group of LBUs to a zone of shingled magnetic recording tracks in a selected one of the second set of GCUs. A combined media translation map identifies physical addresses in both the first and second NVMs.