Samsung Electronics Co., Ltd.

Sangyoon Oh

Youngho Park

Jekyeom Jeon

Jaeju Kim

Hyungchul Jang

Jooyoung Hwang

Hwang Joon Lee

Byung-Ki Lee

Yonghwa Lee

Chansoo Kim

Satish Kumar

Keunsan Park

Wan Heo

Byoung Geun Kim

Byounggeun Kim

Dong-Min Kim

Jeong-Woo Park

Sil Wan Chang

Jaesub Kim

Jeong Hur

Hyunsoo Cho

Hyun-Sik Yun

A method of managing data in a storage device is provided. The storage device includes a plurality of nonvolatile memory chips each including a plurality of pages. A first data object is received from an external host device. The first data object has an unfixed size and corresponds to a first logical address which is a single address. Based on determining that it is impossible to store the first data in a single page among the plurality of pages, a buffering policy for the first data object is set based on at least one selection parameter. While mapping the first logical address of the first data object and a first physical address of pages in which the first data object is stored, a first buffering direction representing the buffering policy for the first data object is stored with a mapping result.

Method of managing data in storage device based on variable size mapping, method of operating storage device using the same and storage device performing the same

An operation method of a storage device, which includes a nonvolatile memory device, includes receiving a first key-value (KV) command including a first key from an external host device; transmitting a first value corresponding to the first key from the nonvolatile memory device to the external host device as first user data, in response to the first KV command; receiving a second KV command including a second key, from the external host device; and performing a first administrative operation based on a second value corresponding to the second key, in response to the second KV command. The first KV command and the second KV command are KV commands of a same type.

Storage device and operation method thereof

Provided are a storage device storing data on the basis of key-value and an operating method thereof, wherein the storage device separates and manages a plurality of keys and a plurality of values respectively corresponding to the plurality of keys, and includes a first controller processing a first key and a first value corresponding to the first key, a second controller processing a second key and a second value corresponding to the second key, and a nonvolatile memory storing the first key, the second key, the first value, and the second value, wherein the first key includes information about the second controller regarding a processing core for the second value processed next to the first value.

Storage device storing data based on key-value and operating method of the same

An operation method of a storage device, which is connected to a host through an interface sharing a memory buffer of the host, includes receiving an access command from the host, anticipating data that is expected to be requested by the host with reference to the access command, reading out the anticipated data from a nonvolatile memory device and loading the read data to a first area of the memory buffer, and in a case of being requested to load the anticipated data into a second area of the memory buffer by the host, moving the anticipated data from the first area to the second area.

Storage device and method of operating the same

A storage device of a storage system includes a device Direct Memory Access (DMA) configured to calculate a data transfer amount based on size information of data provided to a DMA queue; a command manager configured to receive the data transfer amount from the device DMA and to calculate a transfer speed using a speed mode table; and a device interface configured to transfer the transfer speed to a host.

Storage system for changing a data transfer speed and a method of changing the data transfer speed thereof

A storage system includes a host and a storage device. The storage device includes a device controller and a device interface. The device controller is configured to generate interface idle time information in response to a command received from a host, the interface idle time information being determined based on an estimated time to execute at least one operation at the memory storage device. The device interface is configured to output the interface idle time information to the host.

Storage systems and UFS systems configured to change interface idle mode to active state based on estimated time to execute at least one operation

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Suwon-si, South Korea

Sangyoon Oh