SPARE MEMORY MANAGEMENT IN DATA STORAGE DEVICE

    公开(公告)号:US20240402923A1

    公开(公告)日:2024-12-05

    申请号:US18327691

    申请日:2023-06-01

    Abstract: Aspects of the present disclosure are directed to techniques and procedures for storing data in a data storage device that uses nonvolatile memory (NVM) to store data. The NVM can be organized into logical units that are assigned respective logical unit numbers. The data storage device can report to a host the amount of spare blocks needed for one or more logical units (LUs), and then the host can relinquish some memory blocks to be reallocated as spare blocks. The data storage device can implement a spare block resource management policy per LU and allocate a predetermined amount of spare blocks per LU. The data storage device can implement a spare block resource management policy per memory type and allocate a predetermined amount of spare blocks for LUs with the same memory type.

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