Samsung Electronics Co., Ltd.

Emc Corporation

Stac Electronics

Clay Mayers

Zhengyu Yang

T David Evans

Nithya Ramakrishnan

Allen Russell Andrews

Sudheendra Grama Sampath

Thomas R Bolt

Ping Terence Wong

Venkatraman Balasubramanian

Olufogorehan Adetayo Tunde-Onadele

Rao Kota

Kirill Vanyukov

Douglas L Whiting

Thomas B Bolt

Thomas David Evans

Gregory M Cusanza

Morteza Hoseinzadeh

Thomas Edward Rainey, Iii

Michael Kurt Gehlen

Nathan Anthony Courey

A method for dispatching input-output in a system. The system may include a centralized processing circuit, a plurality of persistent storage targets, a first input-output processor, and a second input-output processor. The method may include determining whether the first input-output processor is connected to a first target of the plurality of persistent storage targets; determining whether the second input-output processor is connected to the first target; and in response to determining that both the first input-output processor is connected to the first target, and the second input-output processor is connected to the first target, dispatching a first plurality of input-output requests, each to either the first input-output processor or the second input-output processor, the dispatching being in proportion to a service rate of the first input-output processor to the first target and a service rate of the second input-output processor to the first target, respectively.

Intelligent path selection and load balancing

A method of adapting a first key-value store to a second key-value store may include determining a conversion strategy based on one or more characteristics of the first key-value store and one or more characteristics of the second key-value store, converting the second key-value store to a converted key-value store based on the conversion strategy, and mapping the first key-value store to the converted key-value store based on a mapping function. The converted key-value store may be accessed on-the-fly. A data storage system may include a key-value interface configured to provide access to a lower key-value store, and a key-value adapter coupled to the key-value interface and configured to adapt an upper key-value store to the lower key-value store, wherein the key-value adapter may be configured to adapt at least two different types of the upper key-value store to the lower key-value store.

Methods and systems for adapting multiple key-value stores

An apparatus, a method, a method of manufacturing an apparatus, and a method of constructing an integrated circuit are provided. A processor of an application server layer detects a degree of a change in a workload in an input/output stream received through a network from one or more user devices. The processor determines a degree range, from a plurality of preset degree ranges, that the degree of the change in the workload is within. The processor determines a distribution strategy, from among a plurality of distribution strategies, to distribute the workload across one or more of a plurality of solid state devices (SSDs) in a performance cache tier of a centralized multi-tier storage pool, based on the determined degree range. The processor distributes the workload across the one or more of the plurality of solid state devices based on the determined distribution strategy.

Method and apparatus for adaptive cache load balancing for SSD-based cloud computing storage system

A load balancing system includes: a centralized queue; a pool of resource nodes connected to the centralized queue; one or more processors; and memory coupled to the one or more processors and storing instructions that, when executed by the one or more processors, cause the one or more processors to: monitor a queue status of the centralized queue to identify a bursty traffic period; calculate an index value for a load associated with the bursty traffic period; select a load balancing strategy based on the index value; distribute the load to the pool of resource nodes based on the load balancing strategy; observe a state of the pool of resource nodes in response to the load balancing strategy; calculate a reward based on the observed state; and adjust the load balancing strategy based on the reward.

Systems and methods for spike detection and load balancing resource management

A system and method for managing input output queue pairs. In some embodiments, the method includes calculating a system utilization ratio, the system utilization ratio being a ratio of: an arrival rate of input output requests, to a service rate; determining whether: the system utilization ratio has exceeded a first threshold utilization during a time period exceeding a first threshold length, and adding a new queue pair is expected to improve system performance; and in response to determining: that the system utilization ratio has exceeded the first threshold utilization during a time period exceeding the first threshold length, and that adding a new queue pair is expected to improve system performance: adding a new queue pair.

Systems and methods for I/O transmissions in queue pair-based NVMeoF initiator-target system

A system for performing auto-tiering is disclosed. The system may include a plurality of storage devices offering a plurality of resources and organized into storage tiers. The storage devices may store data for virtual machines. A receiver may receive I/O commands and performance data for the virtual machines. A transmitter may transmit responses to the I/O commands. An auto-tiering controller may select storage tiers to store the data for the virtual machines and may migrate data between storage tiers responsive to the performance data. The selection of the storage tiers may optimize the performance of all virtual machines across all storage tiers, factoring the change in performance of the virtual machines and a migration cost to migrate data between storage tiers.

Automatic data placement manager in multi-tier all-flash datacenter

A method and system for transferring data from mass storage devices to the high speed data cache in a manner that imposes minimal overhead to the normal input/output mechanism and minimizes the load placed on the device being cached is disclosed herein. Minimizing the load placed on the slower device and minimizing the overhead of processing input/output requests results in optimal performance.

Method for asynchronous population of data caches used with mass storage devices

A computer system with a scanner web service set up as a local host is provided. An HTTP message is received from a client-side web application code client-side running in a web browser on the computer system by the scanner web service. A message based on the received HTTP message is sent to a scanner driver that is in communication with a scanner connected to or integrated with the computer system. Scanned image information is received from the scanner driver, and is provided to the client-side web application code running the web browser.

Scanner web service for web application and scanner driver communication

A method and system for displaying a graphical user interface on the display device. Methods include displaying a control area on a graphical user interface, the control area including at least one control field associated with an attribute of a content source, the control field being configured to be viewable via the control area and displaying a content area on the graphical user interface such that the control area and the content area are at least partially superimposed and simultaneously visible on the graphical user interface, the content area displaying content of at least a portion of the content source.

User interface for controls

An apparatus and method for converting an input data character stream into a variable length encoded data stream in a data compression system. A sliding window data compression algorithm is combined with Huffman encoding on the strings and raw bytes. The Huffman table, in a compressed form, is prepended to the encoded output data. The Huffman codes representing the shortest strings encode both the string length and part of the string offset. Assigning Huffman codes to represent the combined length and offset allows the use of a smaller sliding window size without sacrificing compression ratio. The smaller window size allows implementations in software and hardware to minimize memory usage, thus reducing cost.

Growing community of inventors

San Diego, CA, United States of America

Clay Mayers