公开(公告)号：US20220214834A1

公开(公告)日：2022-07-07

申请号：US17700321

申请日：2022-03-21

Applicant: c/o Kioxia Corporation

Inventor： Steven Wells ,  Mark Carlson ,  Amit Jain ,  Narasimhulu Dharani Kotte ,  Senthil Thangaraj ,  Barada Mishra ,  Girish Desai

IPC: G06F3/06

Abstract: In one embodiment, a solid state drive (SSD) comprises a plurality of non-volatile memory dies communicatively arranged in one or more communication channels, each of the plurality of non-volatile memory dies comprising a plurality of physical blocks, one or more channel controllers communicatively coupled to the one or more communication channels, respectively, and a memory controller communicatively coupled to the plurality of non-volatile memory dies via the one or more channel controllers, wherein the memory controller is configured to assign (i) the plurality of physical blocks of a first die of the plurality of non-volatile memory dies to only a first region and (ii) the plurality of physical blocks of a second die of the plurality of non-volatile memory dies to only a second region, perform only read operations on the first region in a first operation mode, and perform write operations or maintenance operations on the second region in a second operation mode concurrently with read operations on the first region in the first operation mode.

公开(公告)号：US11294594B2

公开(公告)日：2022-04-05

申请号：US15800742

申请日：2017-11-01

Applicant: Kioxia Corporation

Inventor： Steven Wells ,  Mark Carlson ,  Amit Jain ,  Narasimhulu Dharani Kotte ,  Senthil Thangaraj ,  Barada Mishra ,  Girish Desai

IPC: G06F3/06

Abstract: In one embodiment, a solid state drive (SSD) comprises a plurality of non-volatile memory dies communicatively arranged in one or more communication channels, each of the plurality of non-volatile memory dies comprising a plurality of physical blocks, one or more channel controllers communicatively coupled to the one or more communication channels, respectively, and a memory controller communicatively coupled to the plurality of non-volatile memory dies via the one or more channel controllers, wherein the memory controller is configured to assign (i) the plurality of physical blocks of a first die of the plurality of non-volatile memory dies to only a first region and (ii) the plurality of physical blocks of a second die of the plurality of non-volatile memory dies to only a second region, perform only read operations on the first region in a first operation mode, and perform write operations or maintenance operations on the second region in a second operation mode concurrently with read operations on the first region in the first operation mode.

公开(公告)号：US20240362111A1

公开(公告)日：2024-10-31

申请号：US18765622

申请日：2024-07-08

Applicant: Kioxia Corporation

Inventor： Steven Wells ,  Mark Carlson ,  Amit Jain ,  Narasimhulu Dharani Kotte ,  Senthil Thangaraj ,  Barada Mishra ,  Girish Desai

IPC: G06F11/10 ,  G06F3/06

CPC classification number: G06F11/1008 ,  G06F3/061 ,  G06F3/0611 ,  G06F3/0644 ,  G06F3/0659 ,  G06F3/0679 ,  G06F11/1048

Abstract: In one embodiment, a solid state drive (SSD) comprises a plurality of non-volatile memory dies communicatively arranged in one or more communication channels, each of the plurality of non-volatile memory dies comprising a plurality of physical blocks, one or more channel controllers communicatively coupled to the one or more communication channels, respectively, and a memory controller communicatively coupled to the plurality of non-volatile memory dies via the one or more channel controllers, wherein the memory controller is configured to assign (i) the plurality of physical blocks of a first die of the plurality of non-volatile memory dies to only a first region and (ii) the plurality of physical blocks of a second die of the plurality of non-volatile memory dies to only a second region, perform only read operations on the first region in a first operation mode, and perform write operations or maintenance operations on the second region in a second operation mode concurrently with read operations on the first region in the first operation mode.

公开(公告)号：US12032438B2

公开(公告)日：2024-07-09

申请号：US17700321

申请日：2022-03-21

Applicant: Kioxia Corporation

Inventor： Steven Wells ,  Mark Carlson ,  Amit Jain ,  Narasimhulu Dharani Kotte ,  Senthil Thangaraj ,  Barada Mishra ,  Girish Desai

IPC: G06F11/00 ,  G06F3/06 ,  G06F11/10

CPC classification number: G06F11/1008 ,  G06F3/061 ,  G06F3/0611 ,  G06F3/0644 ,  G06F3/0659 ,  G06F3/0679 ,  G06F11/1048

Abstract: In one embodiment, a solid state drive (SSD) comprises a plurality of non-volatile memory dies communicatively arranged in one or more communication channels, each of the plurality of non-volatile memory dies comprising a plurality of physical blocks, one or more channel controllers communicatively coupled to the one or more communication channels, respectively, and a memory controller communicatively coupled to the plurality of non-volatile memory dies via the one or more channel controllers, wherein the memory controller is configured to assign (i) the plurality of physical blocks of a first die of the plurality of non-volatile memory dies to only a first region and (ii) the plurality of physical blocks of a second die of the plurality of non-volatile memory dies to only a second region, perform only read operations on the first region in a first operation mode, and perform write operations or maintenance operations on the second region in a second operation mode concurrently with read operations on the first region in the first operation mode.