Intel Corporation

Kioxia Corporation

Toshiba Memory Corporation

Steven E Wells

Robert N Hasbun

Neil Buxton

Virgil N Kynett

Richard P Garner

Mark D Winston

Eric J Magnusson

Mark Carlson

Kurt B Robinson

Terry L Kendall

Shigehiro Asano

Neal R Mielke

Avadhani Shridhar

David A Ward

Nicole Ross

V Niles Kynett

Ned M Smith

Lance W Dover

Mickey L Fandrich

Robert W Strong

Mark E Bauer

Amit Jain

Owen W Jungroth

Jerry A Kreifels

Senthil Thangaraj

Girish Desai

Nigel David Horspool

Robert Reed

Alan E Baker

Narasimhulu Dharani Kotte

Mark J Christopherson

Mohinder Saluja

Dave M Brown

George Hoekstra

Barada Mishra

Paul Suhler

Victor W Locasio

Will Akin

Glenn J Hinton

Albert Fazio

Rodney R Rozman

Mamun Ur Rashid

Mark P Leinwander

Richard D Pashley

Dale J Juenemann

Johnny Javanifard

Jeanna N Matthews

Sherif R Sweha

R Scott Tetrick

Greg Atwood

Deborah L See

Ning Wu

David M Brown

Markus A Levy

Phillip M Kwong

Oscar P Pinto

Neeraj Sharma

Jordan Howes

Patricia L Dix

Anil Sama

Steven S Barbarich

Sara Domonkos

George Blanchard

Glen Hawk

Gary J Gallagher

Various implementations described herein relate to systems and methods for managing superblocks, including a non-volatile storage including a superblock and a controller configured to notify a host of a size of the superblock to a host, determine a stream that aligns with the superblock, write data corresponding to the stream to the superblock, and determine that writing the data correspond to the stream has completed.

Superblock-based write management in non-volatile memory devices

Various implementations described herein relate to systems and methods for managing superblocks, including determining superblocks, including first and second superblocks, in a non-volatile memory storage. The non-volatile memory storage includes independent locations that may be planes or dies. The first superblock includes first blocks corresponding to first independent locations, and the second superblock includes second blocks corresponding to second independent locations. A first number of the first independent locations is less than a number of the independent locations. A second number of the second plurality of independent locations is less than the number of the independent locations.

Superblock size management in non-volatile memory devices

A memory storage system comprising a non-volatile semiconductor memory device comprising a memory array and a plurality of buffers, and a controller in communication with the plurality of buffers. The controller may be configured to issue a command to the non-volatile semiconductor memory device to cause a transfer of a data payload from the controller to a subset of n first buffers of the plurality of buffers. The controller may also be configured to issue a command to the non-volatile semiconductor memory device to cause the non-volatile memory device to transfer a data payload from the memory array to a subset of n first buffers of the plurality of buffers.

Page buffer enhancements

In one embodiment, a solid state drive (SSD) comprises a plurality of non-volatile memory dies communicatively arranged in one or more communication channels, each of the plurality of non-volatile memory dies comprising a plurality of physical blocks, one or more channel controllers communicatively coupled to the one or more communication channels, respectively, and a memory controller communicatively coupled to the plurality of non-volatile memory dies via the one or more channel controllers, wherein the memory controller is configured to assign (i) the plurality of physical blocks of a first die of the plurality of non-volatile memory dies to only a first region and (ii) the plurality of physical blocks of a second die of the plurality of non-volatile memory dies to only a second region, perform only read operations on the first region in a first operation mode, and perform write operations or maintenance operations on the second region in a second operation mode concurrently with read operations on the first region in the first operation mode.

SSD architecture supporting low latency operation

Various implementations described herein relate to creating a namespace in response to determining that a sum of namespace sizes of a plurality of namespaces is less than a first threshold for the point of thin-provisioning. A write command and data are received from a host. The write command and the data are received in response to determining that a sum of namespace utilization of the plurality of namespaces is less than a second threshold. The data is compressed and stored in the created namespace.

Systems, methods, and non-transitory computer-readable media for thin provisioning in non-volatile memory storage devices

A system and method for controlling a SSD in response to a power failure event of a main power supply to the SSD. The method includes receiving and storing write commands and associated data payloads for execution on the SSD in volatile memory, detecting the power failure event on the SSD, supplying backup power to the SSD during the power failure event, and executing one or more write commands stored in the volatile memory by storing the associated data payloads in a non-volatile memory on the SSD using the backup power. In response to the execution, removing the one or more write commands from the cache such that one or more unexecuted write commands and the associated data payloads remain in the cache, and storing a list of the one or more unexecuted write commands, but not the associated data payloads, in non-volatile memory using the backup power.

Systems and methods for managing reduced power failure energy requirements on a solid state drive

A memory storage system comprising a non-volatile semiconductor memory device comprising a memory array and a plurality of buffers, and a controller in communication with the plurality of buffers. The controller is configured to issue a command to the non-volatile semiconductor memory device specifying a subset of n buffers of the plurality of buffers in which to transfer a data payload relating to the command.

Explicit buffer control

A method of managing errors in a plurality of storage drives includes receiving, at a memory controller coupled to at least one storage medium in an SSD, a read command from a host interface. The method also includes retrieving, from the storage medium, read data corresponding to a plurality of data chunks to be retrieved in response to the read command, and determining that at least one data chunk of the plurality of data chunks is unable to be read, the at least one data chunk corresponding to a failed data chunk. And in response to determining the failed data chunk, sending to the host interface the read data including the failed data chunk or excluding the failed data chunk. And in response to the read command sending to the host interface status information about all data chunks.

Media error reporting improvements for storage drives

In one embodiment, a method for reducing the variance in latency of host I/O commands by managing non-host command queues in a solid state storage drive comprises receiving a plurality of non-host commands in at least one non-host command queue, each of the plurality of non-host commands configured to be executed by one of a plurality of non-volatile memory dies, and issuing a non-host command from the at least one non-host command queue to one of the plurality of non-volatile memory dies when a latency-reducing condition is satisfied. In one embodiment, the method further comprises determining that the latency-reducing condition is satisfied if a present number of active non-host commands is less than a first maximum number of active non-host commands. In one embodiment, the method further comprises determining that the latency-reducing condition is satisfied if a latency cost of the non-host command is less than or equal to an available latency budget.

Managing internal command queues in solid state storage drives

Growing community of inventors

Citrus Heights, CA, United States of America

Steven E Wells