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    Data processing method, device, computer apparatus and storage medium
    2.
    发明授权
    Data processing method, device, computer apparatus and storage medium 有权

    公开(公告)号：US12235763B2

    公开(公告)日：2025-02-25

    申请号：US18741900

    申请日：2024-06-13

    Applicant: Xi'an Jiaotong University ,  Douyin Vision Co., Ltd. ,  Lemon Inc.

    Inventor： Wei Tang ,  Chi Zhang ,  Fangxing Yu ,  Menghan Li ,  Bo Wang ,  Weiguo Wu ,  Fei Liu

    IPC: G06F12/08 ,  G06F12/0802

    Abstract: The present disclosure provides a data processing method, a device, a computer apparatus and a storage medium, wherein the method includes: in response to a target disk receiving at least one write request within a preset time period, determining a size threshold value for classifying a data update type according to a size of write data respectively indicated by each write request; determining a data update type corresponding to each write request according to a size of each write request and the size threshold value; dividing write data of the write request to obtain a data block according to a preset data block size, and caching the data block in a cache region of the target disk corresponding to the data update type, the target disk has multiple types of cache regions configured therein, different cache regions are configured to support caching of data with different update frequencies.

    Data processing method, device, computer apparatus and storage medium
    3.
    发明授权
    Data processing method, device, computer apparatus and storage medium 有权

    公开(公告)号：US12189531B1

    公开(公告)日：2025-01-07

    申请号：US18741900

    申请日：2024-06-13

    Applicant: Xi'an Jiaotong University ,  Douyin Vision Co., Ltd. ,  Lemon Inc.

    Inventor： Wei Tang ,  Chi Zhang ,  Fangxing Yu ,  Menghan Li ,  Bo Wang ,  Weiguo Wu ,  Fei Liu

    IPC: G06F12/08 ,  G06F12/0802

    Abstract: The present disclosure provides a data processing method, a device, a computer apparatus and a storage medium, wherein the method includes: in response to a target disk receiving at least one write request within a preset time period, determining a size threshold value for classifying a data update type according to a size of write data respectively indicated by each write request; determining a data update type corresponding to each write request according to a size of each write request and the size threshold value; dividing write data of the write request to obtain a data block according to a preset data block size, and caching the data block in a cache region of the target disk corresponding to the data update type, the target disk has multiple types of cache regions configured therein, different cache regions are configured to support caching of data with different update frequencies.

    Techniques for instance storage using segment-based storage
    5.
    发明授权
    Techniques for instance storage using segment-based storage 有权

    公开(公告)号：US12093175B2

    公开(公告)日：2024-09-17

    申请号：US18053908

    申请日：2022-11-09

    Applicant: Lemon Inc.

    Inventor： Peng Xu ,  Ping Zhou ,  Chaohong Hu ,  Fei Liu ,  Changyou Xu ,  Kan Frankie Fan

    IPC: G06F12/08 ,  G06F12/02 ,  G06F12/0804

    CPC classification number: G06F12/0804 ,  G06F12/0246 ,  G06F12/0292 ,  G06F2212/7201

    Abstract: Described are examples for storing data on a storage device, including storing, in a live write stream cache, one or more logical blocks (LBs) corresponding to a data segment, writing, for each LB in the data segment, a cache element of a cache entry that points to the LB in the live write stream cache, where the cache entry includes multiple cache elements corresponding to the multiple LBs of the data segment, writing, for the cache entry, a table entry in a mapping table that points to the cache entry, and when a storage policy is triggered for the cache entry, writing the multiple LBs, pointed to by each cache element of the cache entry, to a stream for storing as contiguous LBs on the storage device, and updating the table entry to point to a physical address of a first LB of the contiguous LBs on the storage device.

    SYSTEM AND METHODS FOR MANAGING THE DATA INTEGRITY OF READ AND WRITE OPERATIONS
    6.
    发明公开
    SYSTEM AND METHODS FOR MANAGING THE DATA INTEGRITY OF READ AND WRITE OPERATIONS 审中-公开

    公开(公告)号：US20240248793A1

    公开(公告)日：2024-07-25

    申请号：US18582490

    申请日：2024-02-20

    Applicant: Lemon Inc.

    Inventor： Peng Xu ,  Fei Liu ,  Kyoungryun Bae ,  Jinhyuk Kim ,  Prathamesh Amritkar ,  Dengcheng Zhu ,  Wei Tang ,  Sheng Qiu

    IPC: G06F11/10

    CPC classification number: G06F11/1004 ,  G06F11/1016 ,  G06F11/1068

    Abstract: A computing system for verifying data integrity is provided, including a host device comprising a memory controller, and a storage device. The memory controller receives original data blocks, each having an associated initial CRC value. The memory controller then segments and recombines the data blocks into logic blocks. The storage device is configured to write the logic blocks to its non-volatile memory of the storage device in the write operation, calculate a new logic block (LB) CRC value for each logic block, and calculate a combined LB CRC value. After the write operation, the memory controller combines duplicated copies of a given CRC value for each of the original data blocks, then combines them together to calculate a combined segments CRC value, and compares the combined segments CRC value to the combined LB CRC value. When the combined CRC values match, a verification response is generated verifying data integrity.

    Multi-dimensional solid state drive block access
    8.
    发明授权
    Multi-dimensional solid state drive block access 有权

    公开(公告)号：US12271612B2

    公开(公告)日：2025-04-08

    申请号：US18108351

    申请日：2023-02-10

    Applicant: Lemon Inc.

    Inventor： Chul Lee ,  Ping Zhou ,  Hui Frankie Zhang ,  Fei Liu

    IPC: G06F12/00 ,  G06F3/06

    Abstract: A method for accessing blocks of a solid state drive is described. A starting position is received, where the starting position identifies a first block of a contiguous block region within a namespace of the solid state drive. The contiguous block region is to be accessed according to a single input/output operation and the namespace comprises two dimensions of logical address space with respective indices for indexing blocks within a corresponding dimension of the logical address space. A first dimensional identifier that identifies a size of the contiguous block region in a first dimension of the namespace is received. A second dimensional identifier that identifies a size of the contiguous block region in a second dimension of the namespace is received. Blocks of the contiguous block region are accessed in response to the single input/output operation according to the starting position, the first dimensional identifier, and the second dimensional identifier.

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