公开(公告)号：US20250165390A1

公开(公告)日：2025-05-22

申请号：US18651459

申请日：2024-04-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yejin Jo ,  Kwangsuk Kim ,  Jinhwan Choi ,  Wonho Kang ,  Jungyoung Kim ,  Jungtae Lee

IPC: G06F12/02

Abstract: There is provided a method of operating a storage system that includes a host and a storage device. According to the method, device-filled-ratio of a storage space of a plurality of nonvolatile memory devices in the storage device is queried by the host to the storage device, calculated device-filled-ratio is transmitted, by a storage controller that controls the plurality of nonvolatile memory devices, to the host in response to the querying, an unmap command and target logical block addresses are transmitted, by the host, to the storage device based on the calculated device-filled-ratio, and physical block addresses corresponding to the target logical block addresses are deallocated, by the storage device, in response to the unmap command.