公开(公告)号：US20230195333A1

公开(公告)日：2023-06-22

申请号：US17946650

申请日：2022-09-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Younghyun JI ,  Jisoo KIM ,  Kyungwoo NOH ,  Kyungjin LEE

IPC: G06F3/06

CPC classification number: G06F3/0623 ,  G06F3/0652 ,  G06F3/0679

Abstract: A storage device includes a memory device including user memory blocks providing a user data region; and a controller configured to: map logical addresses used in a host to a portion of the user data region, and use a remaining portion of the user data region as an over-provisioning region, wherein the controller is further configured to control the memory device to: erase the user memory blocks based on a sanitize command from the host, provide, to the host, block address information of the user memory blocks based on a block address request from the host, access the user memory blocks based on block state check requests from the host, and provide, to the host, state information indicating whether the user memory blocks are erased according to access results.