公开(公告)号：US20190129839A1

公开(公告)日：2019-05-02

申请号：US15994247

申请日：2018-05-31

Applicant: Samsung Electronics Co., Ltd.

Inventor： Soo Hyun KIM ,  Dong-Young SEO ,  Sang Kwon MOON

IPC: G06F12/02 ,  G06F3/06 ,  G06F12/0804

Abstract: A data storage device is provided. The data storage device a buffer configured to store a mapping table comprising physical block addresses (PBAs) corresponding to logical block addresses (LBAs), a non-volatile memory configured to store data; and a controller configured to control the buffer and the non-volatile. The controller is configured to read data stored at a first PBA of the non-volatile memory corresponding to a first LBA by referring to the mapping table when receiving a command to read data corresponding to the first LBA from outside of the data storage device, and, when a second LBA included in the data read from the non-volatile memory is different from the first LBA, retry reading, from the non-volatile memory, the data corresponding to the first LBA.