Samsung Electronics Co., Ltd.

Oracle International Corporation

Yang Seok Ki

Rekha Pitchumani

Inseok Stephen Choi

Sungwook Ryu

Changho Choi

Heekwon Park

Joo Hwan Lee

Byoung Young Ahn

Ilgu Hong

Ho Bin Lee

Yangwook Kang

Tong Zhang

Sheng Qiu

Zongwang Li

Jason Martineau

Jongmin Gim

Krishna Teja Malladi

Jaehwan Lee

Ramdas P Kachare

Oscar Prem Pinto

Andrew Zhenwen Chang

Hui Zhang

Rajinikanth Pandurangan

Ehsan M Najafabadi

Marie Mai Nguyen

Fei Liu

Yongsuk Lee

Sang Won Lee

Shiyu Li

Mian Qin

Dongchul Park

Sangoak Woo

Younggeon Yoo

Wonseb Jeong

Chanho Yoon

Beomkyu Shin

Jungmin Seo

Praveen Krishnamoorthy

Karnik Shah

Armin Haj Aboutalebi

Sahand Salamat

Xiling Sun

Da Zhang

Xiaodong Zhao

Myungjune Jung

Yiqun Zhang

Sang Hun Jun

Chanik Park

Sanghun Jun

Seontaek Kim

Sung Wook Ryu

Dong Gi Daniel Lee

Behnam Pourghassemi Najafabadi

Harry Rogers

Gaurav Garg

Neerja Bhatt

Kangho Roh

Alan Robert Downing

Jeonguk Kang

Seongnam Kwon

Abhishek Saxena

Byung Choi

Shubha Bose

Ramzi Ammari

Alain Tran

Devendra Singh

Jaemin Jung

Stephen Choi

Aakanksha Pudipeddi

Chen Zou

Pratik Mishra

Seyedeh Hanieh Hashemi

Sujatha Janardhanan

Woongjin Chun

Hobin Lee

A hierarchical memory system and method. In some embodiments, the method includes: demoting a first page of data from a fast memory to a slow memory; promoting the first page of data from the slow memory to an intermediate memory zone; and promoting the first page of data from the intermediate memory zone to the fast memory, wherein the intermediate memory zone includes a virtual zone within the slow memory.

Hierarchical memory system

A method for computational storage may include storing, at a storage device, two or more portions of data, wherein a first one of the two or more portions of data comprises a first fragment of a record and a second one of the two or more portions of data comprises a second fragment of the record, and performing, by the storage device, an operation on the first and second fragments of the record. The method may further include performing, by the storage node, a second operation on first and second fragments of a second record. The operation may include a data selection operation, and the method may further include sending a result of the data selection operation to a server. The method may further include sending a result of a first data selection operation to a server.

Systems, methods, and apparatus for hierarchical aggregation for computational storage

Systems and methods for prefetching data are disclosed. A processor in communication with a storage device identifies a first address. The processor identifies a first setting associated with the first address. The processor issues a first command to a first storage medium of the storage device based on the first setting. The first command is for performing a first type of memory read. The storage device is configured to retrieve first data associated with the first address in the first storage medium, to a second storage medium of the storage device, based on the first command.

Systems and methods for prefetching data

A storage device is disclosed. The storage device may comprise storage for input encoded data. A controller may process read requests and write requests from a host computer on the data in the storage. An in-storage compute controller may receive a predicate from the host computer to be applied to the input encoded data. A transcoder may include an index mapper to map an input dictionary to an output dictionary, with one entry in the input dictionary mapped to an entry in the output dictionary, and another entry in the input dictionary mapped to a 'don't care' entry in the output dictionary.

Using predicates in conditional transcoder for column store

A system and method for page mirroring for storage. In some embodiments, the method includes: reading first data from a persistent memory device; establishing that the first data is stored in a first cache; and copying the first data from the first cache to a system memory, wherein the persistent memory device supports an external protocol and a memory protocol.

System and method for page mirroring for storage

A method includes storing, at a computing device, access granularity criteria associated with a memory area. The method further includes receiving a memory operation request requesting access to a first portion of the memory area at the first access granularity. The method further includes in response to the memory operation request satisfying the access granularity criteria, sending, from the computing device, a command to a storage device based on the memory operation request.

Systems and methods for sending a command to a storage device

According to one general aspect, a system may include a plurality of data nodes. Each data node may include either or both of a first storage medium and a second storage medium that is slower than the first storage medium. Each data node may be configured to store a piece data in either the first storage medium or the second storage medium. The system may be configured to store a plurality of copies of an active piece of data within two or more data nodes. A fast copy of the active piece of data may be stored by a first storage medium of a first data node. One or more slow copies of the active piece of data may be stored by respective second storage mediums of one or more respective other data nodes.

Heterogeneous distributed file system using different types of storage mediums

A storage device may include a storage medium, a storage device controller coupled to the storage medium, a host interface coupled to the storage device controller, and an attachable module interface configured to connect an attachable compute module to the storage device controller. The attachable module interface may include a data interface, a side-band interface, and/or a power interface. The attachable module interface may include a connector configured to connect the attachable compute module to the storage device controller. The storage device may include an enclosure having an opening configured to enable the attachable compute module to be connected to the attachable module interface through the opening. The storage device controller may be configured to utilize one or more resources of the attachable compute module. The storage device controller may be configured to communicate with the attachable compute module through one or more command extensions of a storage protocol.

Systems, methods, and devices for attachable compute resources for storage devices

A storage device includes a first storage source storing first data. The storage device further includes a second storage source storing second data. The second data includes a first portion and a second portion separated by a delimiter. The storage device further includes a first buffer configured to receive the first data. The storage device further includes a second buffer configured to receive the second data. The storage device further includes a first processor associated with the first buffer. The storage device further includes a second processor associated with the second buffer. The second processor is configured to perform a first operation on the second portion of the second data, and wherein the first processor is configured to perform a second operation on the first data and the first portion of the second data based on the delimiter.

Parallel processing in computational storage

A method for data compression may include scanning input data, performing, based on the scanning, a compression operation to generate compressed data using the input data, finding, based on the scanning, a delimiter in the input data, and generating, based on a position of the delimiter in the input data, a portion of data using the compressed data. The input data may include a record, the delimiter indicates a boundary of the record, and the portion of data may include the record. The generating may include generating the portion of data based on a portion size. The portion size may be a default portion size. The portion size may be based on a default portion size and a length of a match in the input data.

Systems, methods, and apparatus for dividing and compressing data

A system is disclosed. The system may include a processor. The system may also include a first submission queue (SQ) and a second SQ. The first SQ may be associated with a first Quality of Service (QoS) level and the second SQ may be associated with a second QoS level, the first QoS level being different from the second QoS level. An application may be running on the processor and using a first namespace (NS). The processor may be configured to receive a first Non-Volatile Memory (NVM) Set create command to establish a first NVM Set associated with the first SQ. The processor may be further configured to receive a second NVM Set create command to establish a second NVM Set associated with the second SQ. The processor may be further configured to receive a first NS create command to establish a first NS associated with the first NVM Set. The processor may be further configured to receive a second NS create command to establish a second NS associated with the second NVM Set. The processor may be further configured to place an input/output (I/O) request sent from the application to at least one storage device in the first SQ based at least in part on the I/O request being associated with the first NS, the first NS being associated with the first NVM Set, and the first NVM Set being associated with the first SQ.

System architecture providing end-to-end performance isolation for multi-tenant systems

A Solid State Drive (SSD) is disclosed. The SSD may include ports to receive requests from a host and to send requests to a second storage device. The SSD may include flash storage for data. An SSD controller may process the requests received from the host and generate the requests sent to the second storage device. The SSD may act as a cache for the second storage device.

Network storage gateway

In various embodiments, a method for page cache management is described. The method can include: identifying a storage device fault associated with a fault-resilient storage device; determining that a first region associated with the fault-resilient storage device comprises an inaccessible space and that a second region associated with the fault-resilient storage device comprises an accessible space; identifying a read command at the second storage device for the data and determine, based on the read command, first data requested by a read operation from a local memory of the second storage device; determining, based on the read command, second data requested by the read operation from the second region; retrieving the second data from the second region; and scheduling a transmission of the second data from the fault-resilient storage device to the second storage device.

System and device for data recovery for ephemeral storage

Growing community of inventors

Palo Alto, CA, United States of America

Yang Seok Ki