Samsung Electronics Co., Ltd.

Insoon Jo

Dong-Uk Kim

Jooyoung Hwang

Yohan Ko

Sungho Yoon

Moonsang Kwon

Duckho Bae

Sangyeun Cho

Hyun Jin Choi

Kui-Yon Mun

Jinyoung Lee

Myung-Jin Jung

Sunghyun Noh

Jong Hyun Yoon

Bon Cheol Gu

Kui-yon Mun

A memory system which includes a flash memory including a meta block and a data block, and a memory controller including a meta data managing module managing meta data to be stored in the meta block. The meta block includes a plurality of pages. The meta data managing module compares a number of free pages of the plurality of pages with a preset number of free pages, and selects a write target page of the meta data by using one of a consecution meta write operation or a dirty meta write operation, depending on a result of the comparison.

Memory system based on flash memory and method for managing meta data thereof

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

An operating method of an electronic device which includes a processor and a memory, the method including: accessing, using the processor, the memory without control of an external host device in a first bias mode; sending, from the processor, information of the memory to the external host device when the first bias mode ends; and accessing, using the processor, the memory under control of the external host device in a second bias mode.

Operating method of an electronic device

A method of operating a disaggregated memory system includes receiving memory management requests from a host device, the memory management requests including context values having different values for plural workloads. The context values are transmitted to an accelerator memory including memory regions to set the context values for the memory regions based on the memory management requests. Prefetch target data is determined based on a context table and a memory access log, and prefetch information associated with the prefetch target data is transmitted to the accelerator memory. The context table includes the context values, and the memory access log is associated with the accelerator memory. The prefetch information is stored in a prefetch target buffer included in the accelerator memory.

Method of operating disaggregated memory system for context-aware prefetch and disaggregated memory system preforming the same

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

A computing system includes a host, a first electronic device connected to the host, and a second electronic device that communicates with the host through the first electronic device. The first electronic device requests a command written in a submission queue of the host based on a doorbell transmitted from the host, stores the command transmitted from the host, requests write data stored in a data buffer of the host, and stores the write data of the data buffer transmitted from the host.

Computing system for reducing latency between serially connected electronic devices

A storage device includes a first interface, an operation circuit, and a nonvolatile memory. The first interface receives a first data chunk from a host device. The operation circuit generates first processed data by processing the first data chunk and generates a first signal indicating a size of the first processed data. The nonvolatile memory stores the first processed data in a storage location, when the storage location at which the first processed data are to be stored is designated to the storage device based on the first signal. The first interface outputs the first signal to the host device.

Storage device and storage system performing offloaded tasks from host

A computing system includes a host, a first electronic device including a memory and an accelerator, and a second electronic device including a direct memory access (DMA) engine. Based on a command transmitted from the host through the first electronic device, the DMA engine transmits data and completion information of the command to the first electronic device. The memory includes a data buffer storing the data and a completion queue buffer storing the completion information. The accelerator executes a calculation on the data. The DMA engine transmits the data to the first electronic device and then transmits the completion information to the first electronic device.

Computing system for transmitting completion early between serially connected electronic devices

A method of operating a computing device includes a storage device receiving a request to execute an application instance, and executing the application instance at the storage device in response to the received request by the storage device. The application instance includes a plurality of storage instances connected with one another, and at least one of the plurality of storage instances is connected to a host device.

Operating methods of computing devices comprising storage devices including nonvolatile memory devices, buffer memories and controllers

A method of searching for data in a storage device is provided. The method includes determining, by the storage device, selectivity about read units of the storage device based on a query, with respect to each table stored in the storage device and searching for the data in the storage device based on the selectivity about the read units.

Method for searching for data in storage device

A storage system includes a data storage including a nonvolatile memory device configured to store data classified into tables, and a storage controller configured to control the nonvolatile memory device; and a host configured to generate a query plan based on the tables according to a query request, and to execute the query plan to thereby read filtered data from the data stored in the nonvolatile memory device, and the storage controller includes a pattern matcher configured to generate and output the filtered data from the data stored in the nonvolatile memory device by performing a filtering operation.

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Hwaseong-si, South Korea

Insoon Jo