Intel Corporation

Micron Technology Incorporated

Sk Hynix Nand Product Solutions Corp.

Anand S Ramalingam

Sanjeev N Trika

Pranav Kalavade

Jawad Basit Khan

Rajesh Sundaram

Paul D Ruby

Doyle W Rivers

Piotr Wysocki

Kapil Karkra

Julie M Walker

Richard Paul Mangold

Shirish Dnyaneshware Bahirat

Peng T Li

Michael Mesnier

William K Lui

Bishwajit Dutta

Michal Wysoczanski

Pallav H Gala

Ali Khakifirooz

Aliasgar S Madraswala

Xin Guo

Andrew J Daiber

Yogesh B Wakchaure

Neal R Mielke

Ye Zhang

Nicholas D Triantafillou

Paritosh Saxena

Jiann-Chang Lo

William B Chapman

Anjaneya Reddy Chagam Reddy

Paul J Thadikaran

Dale J Juenemann

Myron Loewen

August A Camber

James A Boyd

Douglas A Sprock

Jonathan M Hughes

Benjamin Walker

Thomas R Bowen

Jason R Cox

Darren Lasko

Brennan A Watt

Divya Narayanan

Adam Greer Wright

Benjamin Boyer

Eric Hoffman

George Kalwitz

Marcin Pioch

Janet Yabeny Sholar

Reginald David Nepomuceno

Cole Uhlman

Jonathan Bryan Stern

Unnikrishnan Jayakumar

William B Lindquist

John A List

Mohammad Nasim Imtiaz Khan

Solomon Sagar Albert Jayaraj

Fnu Sachin

Renjie Chen

Ravi Motwani

Systems, apparatuses and methods provide for a memory controller to manage quality of service enforcement. For example, a memory controller includes logic to determine a plurality of projected bandwidth levels and a plurality of projected quality of service levels on a user-by-user basis. The projected bandwidth levels and the projected quality of service levels are determined for a plurality of device configurations based on one or more storage device parameters. A requested bandwidth level and a requested quality of service level is received from a host in response to the plurality of projected bandwidth levels and the plurality of projected quality of service levels.

Managing quality of service by allocating die parallelism with variable queue depth

An embodiment of an electronic apparatus may comprise one or more substrates, and a controller coupled to the one or more substrates, the controller including circuitry to read utilization-related information for a resource from a memory shared with a processor in response to a request from the processor for the resource, and schedule utilization of the resource based at least in part on the utilization-related information for the resource. Other embodiments are disclosed and claimed.

Resource management controller

An embodiment of an electronic apparatus may include one or more substrates, and a controller coupled to the one or more substrates, the controller including circuitry to control access to NAND-based storage media that includes a plurality of NAND devices, maintain respective read disturb (RD) counters for each of two or more tracked units at respective granularities, maintain respective global RD counters for each of the two or more tracked units and, in response to a read request, increment one or more global RD counters that correspond to the read request, determine if a global RD counter for a tracked unit matches a random number associated with the tracked unit and, if so determined, increment a RD counter for the tracked unit that corresponds to the read request and generate a new random number for the tracked unit. Other embodiments are disclosed and claimed.

Read disturb tracking based on statistical probability

Read Quality of Service in a solid state drive is improved by allowing a host system communicatively coupled to the solid state drive to control garbage collection in the solid state drive. Through the use of controlled garbage collection, the host system can control when to start and stop garbage collection in the solid state drive and the number of NAND dies engaged in garbage-collection operations.

Host controlled garbage collection in a solid state drive

Systems, apparatuses and methods may provide for memory controller technology including first logic to trigger, via an initial request, a hard-read and a soft-read, wherein the hard-read is to generate hard-bit information and the soft-read is to generate first soft-bit information and second soft-bit information, conduct a first error correction on the hard-bit information, and issue a subsequent request for at least the second soft-bit information if the first error correction is unsuccessful. Additionally, memory device technology may include a plurality of memory cells and second logic to conduct the hard-read and the soft-read from a memory cell in the plurality of memory cells in response to the initial request, send the hard-bit information to the controller, and withhold at least the second soft-bit information from the controller until the subsequent request is received.

Soft read operations with progressive data output

A storage system includes a NAND storage media and a nonvolatile storage media as a write buffer for the NAND storage media. The write buffer is partitioned, where the partitions are to buffer write data based on a classification of a received write request. Write requests are placed in the write buffer partition with other write requests of the same classification. The partitions have a size at least equal to the size of an erase unit of the NAND storage media. The write buffer flushes a partition once it has an amount of write data equal to the size of the erase unit.

NAND-based storage device with partitioned nonvolatile write buffer

Examples include techniques for managing high priority (HP) and low priority (LP) write transaction requests by a storage device. An embodiment includes receiving, at a storage controller for a storage device, a write transaction request from a requestor to write data to one or more memory devices in the storage device. When the write transaction request is for a high priority (HP) write, coalescing the write data into a transaction buffer in a memory of the storage device, sending an acknowledgment for the write transaction request to the requestor, and writing the write data into the one or more memory devices. When the write transaction request is for a low priority (LP) write, writing the write data into the one or more memory devices, and then sending an acknowledgment for the write transaction request to the requestor.

Adaptive write acknowledgment for storage devices

An embodiment of a semiconductor apparatus may include technology to selectively determine a set of data for background refresh based at least in part on host-provided information, and refresh the determined set of data on a persistent storage media as a background operation. Other embodiments are disclosed and claimed.

Selective background data refresh for SSDs

A system including a storage drive and a semiconductor apparatus coupled to the storage drive, is provided. The semiconductor apparatus may include one or more substrates and logic coupled to the one or more substrates, the logic coupled to the one or more substrates to: initiate managing resources of the storage drive and, if the storage drive loses capacity, determine an amount of capacity loss, create a reserved file that is associated with logical memory space in a file system, based on the amount of the capacity loss, and erase at least a portion of the reserved file so that logical memory space associated with an un-erased portion of the reserved file is usable by the storage drive.

Technology to manage capacity loss in storage drives

Systems, apparatuses and methods may provide for technology that reads a lower page, one or more intermediate pages and a last page from a set of multi-level non-volatile memory (NVM) cells, wherein one or more of a lower read time associated with the lower page or a last read time associated with the last page is substantially similar to an intermediate read time associated with the one or more intermediate pages.

Achieving consistent read times in multi-level non-volatile memory

Techniques and mechanisms for exchanging information between a solid state drive (SSD) and a write-in-place non-volatile memory via a host device. In an embodiment, access control information defines state of the SSD, where the access control information determines and/or is based on an access by the host device to other non-volatile memory of the SSD. The access control information includes address conversion information defining a correspondence of a logical address with a physical address for a location of the other non-volatile memory of the SSD. At least some of the access control information is stored by the SSD to the write-in-place non-volatile memory for later retrieval by the SSD. In another embodiment, the SSD signals that a commit operation is to be performed to flush any cached or buffered access control information into the write-in-place non-volatile memory.

Apparatus, method and system to store information for a solid state drive

A machine readable storage medium containing program code that when processed by a processor causes a method to be performed a method is described. The method includes executing a wear leveling routine by servicing cold data from a first queue in a non volatile storage device to write the cold data. The method also includes executing a garbage collection routing by servicing valid data from a second queue in the non volatile storage device to write the valid data. The method also includes servicing host write data from a third queue in the non volatile storage device to write the host write data wherein the first queue remains fixed and is serviced at a constant rate so that a runtime size of the third queue is not substantially affected by the wear leveling routine.

Storage device having improved write uniformity stability

Technologies for combining logical-to-physical address updates include a data storage device. The data storage device includes a non-volatile memory to store data and a logical to physical (L2P) table indicative of logical addresses and associated physical addresses of the data. Additionally, the data storage device includes a volatile memory to store one or more bins. Each bin is indicative of a subset of entries in the L2P table. Further, the data storage device includes a controller to allocate a bin in the volatile memory, write a plurality of updates to a subset of entries of the L2P table to the bin, and write the bin to the L2P table in a single write operation. Other embodiments are also described and claimed.

Technologies for combining logical-to-physical address table updates in a single write operation

In one embodiment, an apparatus comprises a storage device to receive, from a computing host, a request to append data to a data log. The storage device is further to identify a memory location after a last segment of the data log, append the data to the data log by writing the data to the memory location after the last segment of the data log, and provide, to the computing host, a key comprising an identification of the memory location at which the data was appended to the data log.

Method and apparatus for improving performance of sequential logging in a storage device

Growing community of inventors

Beaverton, OR, United States of America

Anand S Ramalingam