公开(公告)号：US20210034536A1

公开(公告)日：2021-02-04

申请号：US16900021

申请日：2020-06-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dong-Woo KIM ,  Dongin KIM ,  Songho YOON ,  Youngjoon JANG ,  Wookhan JEONG

IPC: G06F12/0873 ,  G06F12/0882 ,  G06F12/02 ,  G06F12/14 ,  G06F13/16 ,  G06F9/48

Abstract: A memory system includes a storage device including a nonvolatile memory device and a storage controller configured to control the nonvolatile memory device, and a host that accesses the storage device. The storage device transfers map data, in which a physical address of the nonvolatile memory device and a logical address provided from the host are mapped, to the host depending on a request of the host. The host stores and manages the transferred map data as map cache data. The map cache data are managed depending on a priority that is determined based on a corresponding area of the nonvolatile memory device.