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    SYSTEM AND METHODS FOR MANAGING THE DATA INTEGRITY OF READ AND WRITE OPERATIONS
    1.
    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.

    Techniques for zoned namespace (ZNS) storage using multiple zones
    2.
    发明授权
    Techniques for zoned namespace (ZNS) storage using multiple zones 有权

    公开(公告)号：US11989423B2

    公开(公告)日：2024-05-21

    申请号：US18056083

    申请日：2022-11-16

    Applicant: Lemon Inc.

    Inventor： Peng Xu ,  Sheng Qiu ,  Chaohong Hu ,  Kyoungryun Bae

    IPC: G06F3/06 ,  G06F12/0802

    CPC classification number: G06F3/0619 ,  G06F3/064 ,  G06F3/0679 ,  G06F12/0802

    Abstract: Described are examples for storing, in a first zone cache, one or more logical blocks (LBs) corresponding to a data chunk, writing, for each LB in the data chunk, a cache element of a cache entry that points to the LB in the first zone cache, where the cache entry includes multiple cache elements corresponding to the multiple LBs of the data chunk, 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, as contiguous LBs in an isolation block for the data chunk in a second zone stream, and updating the table entry to point to the isolation block in the second zone stream.

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