公开(公告)号：US20240248623A1

公开(公告)日：2024-07-25

申请号：US18627186

申请日：2024-04-04

Applicant: Micron Technology, Inc.

Inventor： Ximin Shan ,  Venkata Naga Lakshman Pasala ,  Noorshaheen Mavungal Noorudheen

IPC: G06F3/06

CPC classification number: G06F3/0632 ,  G06F3/0611 ,  G06F3/0673

Abstract: A front-end firmware component of a memory sub-system receives a first request to perform a first set of initialization operations and initiates a first set of initialization operations for the front-end component in parallel with initiating a second set of initialization operations for a back-end component. Responsive to completing the first set of initialization operations, the front-end component sends a first notification to a host computer system to indicate that the front-end component is available to respond to requests for configuration data associated with the memory sub-system, receives a second request from the host computer system for a configuration data associated with the memory sub-system, and responsive to receiving the second request from the host computer system before the back-end component has completed the second set of initialization operations, provides the configuration data to the host computer system.

公开(公告)号：US11768631B2

公开(公告)日：2023-09-26

申请号：US17462289

申请日：2021-08-31

Applicant: Micron Technology, Inc.

Inventor： Huapeng G. Guan ,  Ximin Shan ,  Yipei Yu ,  Wei Wang

IPC: G06F3/06 ,  G06F11/14

CPC classification number: G06F3/0659 ,  G06F3/0604 ,  G06F3/0676 ,  G06F3/0679 ,  G06F11/1448

Abstract: A system for file system data access can include memory devices including a non-volatile memory device, as well as a processing device, operatively coupled with the memory devices to perform operations including receiving a file system (FS) write command and determining whether a write count of a physical super management unit (PSMU) of the non-volatile memory device satisfies a threshold criterion. The operations can include, recording a change of a super management unit (SMU) mapping for FS data of an FS mapping table, where the FS mapping table is a portion of a logical-to-physical (L2P) mapping table and performing a move of SMU data corresponding to the change of the SMU mapping. They can also include creating a backup copy of the FS mapping table on the non-volatile memory device, and restoring the FS mapping table from the backup copy of the FS mapping table.

公开(公告)号：US11977755B2

公开(公告)日：2024-05-07

申请号：US17877406

申请日：2022-07-29

Applicant: Micron Technology, Inc.

Inventor： Ximin Shan ,  Venkata Naga Lakshman Pasala ,  Noorshaheen Mavungal Noorudheen

IPC: G06F3/06

CPC classification number: G06F3/0632 ,  G06F3/0611 ,  G06F3/0673

Abstract: A front-end firmware component of a memory sub-system receives a first request to perform a first set of initialization operations and initiates a first set of initialization operations for the front-end component in parallel with initiating a second set of initialization operations for a back-end component. Responsive to completing the first set of initialization operations, the front-end component sends a first notification to a host computer system to indicate that the front-end component is available to respond to requests for configuration data associated with the memory sub-system, receives a second request from the host computer system for a configuration data associated with the memory sub-system, and responsive to receiving the second request from the host computer system before the back-end component has completed the second set of initialization operations, provides the configuration data to the host computer system.

公开(公告)号：US20230064014A1

公开(公告)日：2023-03-02

申请号：US17877406

申请日：2022-07-29

Applicant: Micron Technology, Inc.

Inventor： Ximin Shan ,  Venkata Naga Lakshman Pasala ,  Noorshaheen Mavungal Noorudheen

IPC: G06F3/06

Abstract: A front-end firmware component of a memory sub-system receives a first request to perform a first set of initialization operations, where the front-end component communicates with a back-end component in a data path associated with a memory device of the memory sub-system; responsive to receiving the first request, initiates the a first set of initialization operations for the front-end component in parallel with initiating a second set of initialization operations for the back-end component; responsive to completing the first set of initialization operations, sends a first notification to a host computer system to indicate that the front-end component is available to respond to requests for configuration data associated with the memory sub-system; receives a second request from the host computer system for a configuration data associated with the memory sub-system, where the second request is received before the back-end component has completed the second set of initialization operations; and responsive to receiving the second request from the host computer system before the back-end component has completed the second set of initialization operations, provides the configuration data to the host computer system.

公开(公告)号：US20230062949A1

公开(公告)日：2023-03-02

申请号：US17462289

申请日：2021-08-31

Applicant: Micron Technology, Inc.

Inventor： Huapeng G. Guan ,  Ximin Shan ,  Yipei Yu ,  Wei Wang

IPC: G06F3/06 ,  G06F11/14

Abstract: A system for file system data access can include memory devices including a non-volatile memory device, as well as a processing device, operatively coupled with the memory devices to perform operations including receiving a file system (FS) write command and determining whether a write count of a physical super management unit (PSMU) of the non-volatile memory device satisfies a threshold criterion. The operations can include, recording a change of a super management unit (SMU) mapping for FS data of an FS mapping table, where the FS mapping table is a portion of a logical-to-physical (L2P) mapping table and performing a move of SMU data corresponding to the change of the SMU mapping. They can also include creating a backup copy of the FS mapping table on the non-volatile memory device, and restoring the FS mapping table from the backup copy of the FS mapping table.

公开(公告)号：US20230073503A1

公开(公告)日：2023-03-09

申请号：US17468129

申请日：2021-09-07

Applicant: MICRON TECHNOLOGY, INC.

Inventor： Ximin Shan ,  Jiangli Zhu

IPC: G06F21/78 ,  G06F21/62 ,  G06F3/06

Abstract: A system can include a memory device and a processing device coupled with the memory device, the processing device can receive an identification command from a host system. The processing device can initiate a security procedure in response to receiving the identification command. The processing device can also send an access command to the memory device, the access command can include an identification of a first physical super management unit at a first location the memory device that stores a security file system, where data for the host system is stored at a second location of the memory device. The processing device can receive one or more files from the security file system in response to sending the access command and execute the security procedure in response to receiving the one or more files from the security file system.