公开(公告)号：US20220342744A1

公开(公告)日：2022-10-27

申请号：US17545578

申请日：2021-12-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Junghoon Kim ,  Seonghun Kim ,  Youngsik Lee

IPC: G06F11/07 ,  G06F11/14 ,  G06F11/30 ,  G06F12/02

Abstract: First firmware metadata and second firmware metadata are based on nonvolatile metadata stored in the nonvolatile memory device. A normal operation including a first management operation resulting in a change of the first firmware metadata and an access operation in which the nonvolatile memory device is accessed may be performed. A virtual operation is performed including a second management operation resulting in a change of the second firmware metadata and in which the access operation is not performed. Whether an error has occurred in the first firmware metadata is determined by comparing the change of the first firmware metadata resulting from the first management operation and the change of the second firmware metadata resulting from the second management operation. An error in the metadata may be monitored through the redundant performance of the management operation that results in the change of the metadata without a corresponding access to the nonvolatile memory device.

公开(公告)号：US12216916B2

公开(公告)日：2025-02-04

申请号：US17978415

申请日：2022-11-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Youngsik Lee ,  Seunghyun Shin ,  Sunmi Yoo

IPC: G06F3/06

Abstract: Provided are a storage device and an operating method thereof. The storage device includes a non-volatile memory including a plurality of memory regions and a storage controller configured to control the non-volatile memory through a performance path and at least one direct path, the storage controller including a buffer memory configured to store recovery data, wherein the storage controller writes the recovery data to the non-volatile memory through the at least one direct path in response to power being cut off and a fault being detected in the performance path, the performance path is a path for performing a write operation, a read operation, and an erase operation, and the at least one direct path is a path for performing only a write operation.

公开(公告)号：US11829228B2

公开(公告)日：2023-11-28

申请号：US17545578

申请日：2021-12-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Junghoon Kim ,  Seonghun Kim ,  Youngsik Lee

IPC: G06F11/00 ,  G06F11/07 ,  G06F11/14 ,  G06F12/02 ,  G06F11/30

CPC classification number: G06F11/0772 ,  G06F11/1435 ,  G06F11/3037 ,  G06F12/0238 ,  G06F12/0292

Abstract: First firmware metadata and second firmware metadata are based on nonvolatile metadata stored in the nonvolatile memory device. A normal operation including a first management operation resulting in a change of the first firmware metadata and an access operation in which the nonvolatile memory device is accessed may be performed. A virtual operation is performed including a second management operation resulting in a change of the second firmware metadata and in which the access operation is not performed. Whether an error has occurred in the first firmware metadata is determined by comparing the change of the first firmware metadata resulting from the first management operation and the change of the second firmware metadata resulting from the second management operation. An error in the metadata may be monitored through the redundant performance of the management operation that results in the change of the metadata without a corresponding access to the nonvolatile memory device.