公开(公告)号：US20180129674A1

公开(公告)日：2018-05-10

申请号：US15610810

申请日：2017-06-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyung Ho KIM ,  Seungyeun JEONG ,  Dae-Jin KIM ,  Sang-Jin OH ,  Hwasoo LEE ,  Hyejeong JANG

IPC: G06F17/30

CPC classification number: G06F16/162 ,  G06F16/1847

Abstract: A trim management method for a storage device includes activating, by a processor configured by an application program, a pattern check function of a device driver, requesting, by the processor configured by the application program, a file system to write a file of a specified pattern, converting, by the processor configured by the file system, the file to management unit data of the storage device, transmitting, by the processor configured by the file system, the management unit data to the device driver, checking, by the processor configured by the device driver, whether a data pattern of the management unit data is the same as the specified pattern, and transmitting, by the processor configured by the device driver, a trim command for trimming a storage area corresponding to the management unit data, to the storage device based on results of the checking.

公开(公告)号：US20210240667A1

公开(公告)日：2021-08-05

申请号：US17236416

申请日：2021-04-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyung Ho KIM ,  Seungyeun JEONG ,  Dae-Jin KIM ,  Sang-Jin OH ,  Hwasoo LEE ,  Hyejeong JANG

IPC: G06F16/16 ,  G06F16/18

Abstract: A trim management method for a storage device includes activating, by a processor configured by an application program, a pattern check function of a device driver, requesting, by the processor configured by the application program, a file system to write a file of a specified pattern, converting, by the processor configured by the file system, the file to management unit data of the storage device, transmitting, by the processor configured by the file system, the management unit data to the device driver, checking, by the processor configured by the device driver, whether a data pattern of the management unit data is the same as the specified pattern, and transmitting, by the processor configured by the device driver, a trim command for trimming a storage area corresponding to the management unit data, to the storage device based on results of the checking.

公开(公告)号：US20160048459A1

公开(公告)日：2016-02-18

申请号：US14822321

申请日：2015-08-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sang-Jin OH ,  Jisoo KIM ,  Seung-Jae LEE ,  Moonsang KWON

IPC: G06F12/14 ,  G06F21/44 ,  G06F9/44 ,  G06F12/02

CPC classification number: G06F12/145 ,  G06F12/0246 ,  G06F21/44 ,  G06F21/575 ,  G06F2212/1052 ,  G06F2212/2022 ,  G06F2212/7201

Abstract: A nonvolatile memory system includes a nonvolatile memory device having a physical storage area, and a memory controller managing the physical storage area on the basis of first and second logical areas. The memory controller is configured to receive a logical block address range corresponding to a part of the first logical area and a command from a host and is configured to receive data, a logical block address and a write command from the host to perform an update with respect to the second logical area. When, in the update operation, the received logical block address is included in the logical block address range, the memory controller, in response to the write command, redirects the received logical block address to a logical page number of the second logical area so that the data is written in the second logical area.

Abstract translation: 非易失性存储器系统包括具有物理存储区域的非易失性存储器件，以及基于第一和第二逻辑区域管理物理存储区域的存储器控​​制器。 存储器控制器被配置为接收对应于第一逻辑区域的一部分的逻辑块地址范围和来自主机的命令，并且被配置为从主机接收数据，逻辑块地址和写命令以执行更新， 尊重第二逻辑领域。 当在更新操作中接收到的逻辑块地址被包括在逻辑块地址范围内时，存储器控制器响应写入命令将接收的逻辑块地址重定向到第二逻辑区的逻辑页号，使得 数据被写入第二逻辑区域。