Samsung Electronics Co., Ltd.

Vipin Kumar Agrawal

Daniel Lee Helmick

Chun-Chu Chen-Jhy Archie Wu

Vasili Zhdankin

Sumanth Jannyavula Venkata

Young Deok Kim

Pyeongwoo Lee

Syed Kaiser

Rajendra Singh

Kiran Kumar Muralidharan

Vasili Viktorovich Zhdankin

A storage device is described. A first storage may store a data. An interface may be used to access a command from a host, the command applicable to the data. A controller may execute the command. A second storage may store an entry. The entry may include a first data field for a timestamp and a second data field for a reference to the command.

Submission queue entry age tracking

A method may include receiving, at a device, an indication based on an entry submitted to a queue, obtaining, based on the indication, a measurement for the entry, encoding the measurement to generate an encoded measurement, and storing the encoded measurement. The encoding may include one or more of delta encoding, entropy encoding, or run length encoding. The method may further include modifying the measurement based on a status of the queue. The status of the queue may include an amount of entries in the queue, and the modifying the measurement may include setting the measurement to a value. The status of the queue may include an empty queue, and the modifying the measurement may include resetting the measurement. The encoding may include encoding based on one or more parameters. The method may further include determining at least one of the one or more parameters.

Systems, methods, and devices for queue entry monitoring

An appliance is described. A write engine may process a write request from an application to write a first data into a memory. The write request may including the first data and an address. A compression engine may compress the first data to produce a first compressed data. A write module may store the first compressed data in the memory. The first data may be a first part of a page that may further include a second data as a second part. The first compressed data may be a first part of a compressed page that may further include a second compressed data as a second part.

Systems and methods for performing data compression in memory

A storage device including a memory interface chip. In some embodiments, the storage device includes: a controller integrated circuit; a first memory die; and a first converter integrated circuit, the first converter integrated circuit having a first external interface and a second external interface, the first external interface being a serial interface, the first external interface being connected to the controller integrated circuit, and the second external interface being a memory interface connecting the first converter integrated circuit to the first memory die.

Memory-interface converter chip

A method for managing a live migration operation includes partitioning a first data structure into N sections of the first data structure, the first data structure indicating a location, associated with a source storage, having data to be copied to a target storage, and transferring less than all of the N sections of the first data structure to a migration server.

Mechanism for managing a migration of data with mapped page and dirty page bitmap sections

Provided is a method for communicating information, the method including determining, by a storage device, that a first region of a source storage includes a storage location including data to be copied from the source storage to a target storage, the first region having a size that is equal to a first granularity size, determining, by the storage device, that a second region within the first region includes the storage location, the second region having a size that is equal to a second granularity size that is less than the first granularity size, determining that the second region is associated with a threshold value, exiting a query pattern that includes the first granularity size and the second granularity size, and sending a results data structure indicating that the second region comprises the storage location.

Communicating information for performing a live migration using recursive large-to-small-granularity querying

Systems and methods for processing commands from a host computing device to a storage device are disclosed. The method includes identifying, by the storage device, a command from the host computing device, the command including a logical address; detecting a condition; based on detecting the condition, requesting, by the storage device, translation of the logical address into a physical address; storing, by the storage device, the physical address in a cache; and transferring data according to the command based on the physical address.

Growing community of inventors

San Jose, CA, United States of America

Vipin Kumar Agrawal