公开(公告)号：US20230384946A1

公开(公告)日：2023-11-30

申请号：US18196671

申请日：2023-05-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Soo-Young JI ,  Younggeon YOO ,  Sang-Hwa JIN

IPC: G06F3/06 ,  G06F1/30

CPC classification number: G06F3/0619 ,  G06F3/0631 ,  G06F3/0673 ,  G06F1/30

Abstract: The present disclosure provides methods and apparatuses for data loss prevention of a storage device. In some embodiments, the data loss preventing method includes receiving, from a host system, a query plan corresponding to necessary data to be stored in a volatile memory. The data loss preventing method further includes generating, based on the query plan, a data priority list corresponding to the necessary data. The data loss preventing method further includes selecting, based on the data priority list, at least one portion of the volatile memory, when a main power supplied by the host system drops to or below a power level threshold. The data loss preventing method further includes moving the necessary data to the at least one portion of the volatile memory.

公开(公告)号：US20230384847A1

公开(公告)日：2023-11-30

申请号：US18167263

申请日：2023-02-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sung Chul HUR ,  Sang-Hwa JIN ,  Hwaseok OH ,  Bumjun KIM ,  Brianmyungjune JUNG

IPC: G06F1/26 ,  G06F1/30

CPC classification number: G06F1/263 ,  G06F1/30

Abstract: Provided is a server device which may be stably operated in spite of power loss and a method of operating the same. The server device according to an embodiment of the present invention includes: a host system; a plurality of memory modules; a backplane configured to transmit main power supplied from the host system to the plurality of memory modules; and at least one replaceable battery module connected to the backplane and configured to supply first auxiliary power to the plurality of memory modules, wherein the plurality of memory modules includes a volatile memory, a non-volatile memory; and a memory module controller using the first auxiliary power supplied from the at least one replaceable battery module to maintain data of the volatile memory or flush data of the volatile memory to the non-volatile memory, in response to the power loss occurring in the main power.

公开(公告)号：US20240078311A1

公开(公告)日：2024-03-07

申请号：US18201020

申请日：2023-05-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sang-Hwa JIN ,  Kyungkeun LEE ,  Bumjun KIM

IPC: G06F21/55 ,  G06F21/54

CPC classification number: G06F21/554 ,  G06F21/54 ,  G06F21/552

Abstract: A method includes: receiving, by a storage device, a plurality of read commands generated by a tenant from a host; calculating, based on the plurality of read commands satisfying a predetermined condition, each latency of the plurality of read commands and obtaining the calculated plurality of latencies; calculating a uniformity of the plurality of latencies; and determining, based on the uniformity that is within a predetermined ratio range, that there is an attack from the tenant.