公开(公告)号：US20230236765A1

公开(公告)日：2023-07-27

申请号：US17970628

申请日：2022-10-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Minsik SON ,  Hyunkoo KIM ,  Junseok PARK ,  Suhwan KIM

IPC: G06F3/06

CPC classification number: G06F3/0659 ,  G06F3/0625 ,  G06F3/0679

Abstract: Disclosed is a method of operating a storage controller which communicates with a host and a non-volatile memory device. The method includes receiving a first state transition request for a device open from the host, performing a first active zone refresh operation of the non-volatile memory device in response to the first state transition request such that a zone, which has an active state before an immediately previous power-off is processed to a sequentially writable state in one block, receiving, by a first buffer memory, first target data to be stored in a first block of a first zone among the plurality of zones from the host depending on a first write request, receiving a first power-off request from the host, during processing the first write request, and storing the first target data in a first power loss protection (PLP) block of the non-volatile memory device.