公开(公告)号：US20240264766A1

公开(公告)日：2024-08-08

申请号：US18417297

申请日：2024-01-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Wan-Soo CHOI ,  Sang Hoon YOO ,  Young Sun YOUN ,  Young Ick CHO

IPC: G06F3/06

CPC classification number: G06F3/0655 ,  G06F3/0604 ,  G06F3/064 ,  G06F3/0679

Abstract: A storage device and an operating method of a storage controller are provided. The storage device comprises a non-volatile memory device, each including a plurality of physical blocks, the physical block includes a plurality of sub-blocks and a storage controller including a free block list and a victim selectable block list for the plurality of physical blocks. The storage controller configured to check full reusable physical blocks in the free block list and select a head of the checked block when there are not enough free blocks for storing data in response to a write request received from a host. The storage controller further configured to perform a garbage collection based on the victim selectable block list and to transmit an address of the physical block subjected to the garbage collection to the non-volatile memory device together with the write request.