Samsung Electronics Co., Ltd.

Jooyoung Hwang

Keunsan Park

Dong-Uk Kim

Insoon Jo

Jekyeom Jeon

Sunghyun Noh

Byungki Lee

Junhee Kim

Jinhwan Choi

Jeonguk Kang

Byung-Ki Lee

Yonghwa Lee

Sangyoon Oh

Duckho Bae

Jaehong Min

Yohan Ko

Byoung Geun Kim

Joon-Whan Bae

Yong In Lee

Gyeongmin Kim

Hyun Jin Choi

Dong-Min Kim

Hwaseok Oh

Kangho Roh

Seokhwan Kim

In Hwan Doh

Songho Yoon

Jungmin Seo

Byeonghui Kim

Heetak Shin

Younwon Park

Jupyung Lee

Brian Myungjune Jung

Seunghyun Choi

Myungjune Jung

Hyeongyu Min

Chui Min Lee

Junyeong Han

Kumar Satish

Yonggil Song

Euiseong Seo

A storage device, including: a nonvolatile memory device including a plurality of memory cells; and a controller configured to: allocate a plurality of zones to a storage space of the nonvolatile memory device based on a request received from an external host device, select two or more erase units to be allocated to each of the plurality of zones based on a zone map table, fixedly and sequentially manage logical addresses of data written in the plurality of zones, wherein the nonvolatile memory device includes a plurality of memory chips, wherein each memory chip of the plurality of memory chips includes a plurality of memory blocks, wherein each memory block of the plurality of memory blocks includes at least two erase units, and wherein the controller is further configured to select at least one erase unit from the each memory block to be allocated to a zone.

Storage device including nonvolatile memory device and operating method of storage device

A device includes a storage device to receive a first power and transfer data, a computing device to receive a second power and perform computations on the data; a storage power manager to generate a storage power demand value from previous operation of the storage device; a computing power manager to generate a computing power demand value from previous operation of the computing device; and a global power manager to generate a storage target power value indicating a next power limit for the storage device and a computing target power value indicating a next power limit for the computing device, from both of the storage and computing power demand values, wherein the storage power manager provides the first power to the storage device based on the storage target power value, and the computing power manager provides the second power to the computing device based on the computing target power value.

Computation storage device and method of managing power of the same

A storage device includes a memory device including a plurality of memory blocks, and a memory controller. The memory controller is configured to control a memory operation performed on the memory device by dividing the plurality of memory blocks into a plurality of superblocks. The memory controller is further configured to write a first compressed chunk generated by compressing a first chunk including data requested by a host to be written to a first superblock selected based on a first logical address received from the host among the plurality of superblocks, and generate a location-related offset of the first compressed chunk in the first superblock.

Storage device operating in zone unit and data processing system including the same

In some embodiments, a storage device includes a nonvolatile memory device including a plurality of erase units, and a memory controller. Each of the plurality of erase units include a plurality of memory cells. The memory controller is configured to assign first memory cells of each of first erase units among the plurality of erase units as y-level cells, assign second memory cells of each of second erase units among the plurality of erase units as x-level cells, allocate a zone to at least one first erase unit among the first erase units and permit a sequential write with respect to the zone, buffer data to be written in the zone by using at least one second erase unit among the second erase units, and provide, to the external host device, information about the at least one second erase unit buffering the data to be written in the zone.

Storage device, electronic device including storage device, and operating method of electronic device including storage device

A storage device, including a nonvolatile memory device comprising a plurality of memory cells; and a controller configured to: allocate a plurality of zones to a storage space of the nonvolatile memory device based on a request received from an external host device, fixedly and sequentially manage logical addresses of data written in the plurality of zones, generate a first page map table corresponding to a first zone based on performing the write operation on the first zone, the first page map table comprising a logical address and a physical address of the first zone, based on the first zone being full, activate a read service, which is based on the zone map table, and based on the read service being activated, process read requests for the first zone from the external host device using the zone map table.

A processor configured to control a storage device includes at least one host write buffer generated based on device information of the storage device, and a control module configured to control the at least one host write buffer. The control module is further configured to store, in the at least one host write buffer, a plurality of write commands and merge the plurality of write commands to generate a merged write command.

Processor using host memory buffer and storage system including the processor

An image backup method of a computing system including a host and a memory system includes receiving, by the host, a first image, together with a backup request, performing, by the host, a similarity determination between the first image and images stored in the memory system, based on a first hash function, selectively providing, by the host, the first image to the memory system according to a result of the similarity determination, performing, by the memory system, an identity determination between the first image and the images, based on a second hash function, and providing, by the memory system, the host with information for determining a storage method of the first image according to a result of the identity determination.

Computing system performing image backup and image backup method

A storage system performing an overwrite, a host system controlling the storage system, and an operating method of the storage system, wherein the storage system includes a memory device; and a controller that receives new data and an overwrite request from the host system, wherein the overwrite request includes a first logical address for old data and a second logical address for the new data, and performs an overwrite operation by writing the new data corresponding to the second logical address to the memory device and invalidating the old data corresponding to the first logical address according to the overwrite request.

Storage system performing overwrite, host system controlling storage system, and operating method for storage system

A method of operating a storage device which communicates with a host device, includes receiving a request for an access to target data from the host device, executing an indirect access module based on the request, determining, by the indirect access module, a target address indicating a location of the target data based on an access parameter of the request, accessing, by the indirect access module, a data block based on the target address, and providing, by the indirect access module, the host device with the accessed data block or the target data in the accessed data block.

Storage device including indirect access module, method of operating the same, and method of operating storage system including the same

An operation method of a storage device includes: receiving a write request including an object identifier and data from an external device; performing a hash operation on the data to generate a hash value; determining whether an entry associated with the hash value is empty in a table; storing the data in an area of the storage device corresponding to a physical address and updating the entry to include the physical address and a reference count, when it is determined that the entry is empty; and increasing the reference count included in the entry without performing a store operation associated with the data, when it is determined that the entry is not empty, and an error message is returned to the external device when the entry associated with the hash value is not present in the table.

Storage device with data deduplication, operation method of storage device, and operation method of storage server

A computing system includes a storage system configured to store data, and a host configured to compress a data block of a preset size loaded to a memory, generate a merged block of the preset size by merging a compressed block corresponding to the data block, an identifier of a node block referring the data block, and an offset indicating an index of the data block among at least one data block referred by the node block, and provide the merged block to the storage system.

Computing system including host and storage system and having increased write performance

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

A method of programming data to a storage device including a nonvolatile memory device includes receiving first to third barrier commands from a host, receiving first to third data corresponding to the first to third barrier commands from the host, merging the first and second barrier commands and programming the first and second data to the nonvolatile memory device sequentially based on an order of the first and second barrier commands, verifying program completion of both the first and second data, mapping in mapping information of the first and second data when the programming of the first and second data is completed, and mapping out the information of both the first and second data when the programming of at least one of the first and second data is not complete, and programming the third data to the nonvolatile memory device after the mapping in or the mapping out.

Storage device storing data in order based on barrier command

A storage device which is connected to a host using a virtual memory includes a solid state drive that receives a streaming access command including a logical block address (LBA) list and a chunk size, and prefetches stream data requested according to the LBA list and the chunk size from a nonvolatile memory device without an additional command. The prefetched stream data is sequentially loaded onto a buffer, and an in-storage computing block accesses a streaming region registered on the virtual memory to sequentially read the stream data loaded onto the buffer in units of the chunk size. The buffer is mapped onto a virtual memory address of the streaming region.

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Suwon-si, South Korea

Jooyoung Hwang