公开(公告)号：US10891074B2

公开(公告)日：2021-01-12

申请号：US16055203

申请日：2018-08-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yong-Hwa Lee ,  Young-Ho Park ,  Byung-Ki Lee ,  Hyung-Chul Jang ,  Je-Kyeom Jeon ,  Sung-Kug Cho

IPC: G06F3/06 ,  G06F11/14 ,  G06F16/901 ,  G06F16/23

Abstract: A method of operating a key-value storage device includes a key-value storage device receiving from a host a first command including a first key, a first value, and a first snapshot identification (ID), the key-value storage device generating a first snapshot entry including the first snapshot ID, the first key, and a first physical address in a non-volatile memory device at which the first value is written, in response to the received first command, receiving from the host a second command including the first key, a second value, and a second snapshot ID, and in response to the received second command, the key-value storage device generating a second snapshot entry including the second snapshot ID, the first key, and a second physical address in the non-volatile memory device at which the second value is written.