Samsung Electronics Co., Ltd.

Derrick Tseng

Changho Choi

Jianjian Huo

Hingkwan Huen

Praveen Krishnamoorthy

An interface for enabling a computer device to utilize data property-based data placement inside a nonvolatile memory device comprises: executing a software component at an operating system level in the computer device that monitors update statistics of all data item modifications into the nonvolatile memory device, including one or more of update frequencies for each data item, accumulated update and delete frequencies specific to each file type, and an origin of the data item; storing the update statistics of each of the data items and each of the data item types in a database; and intercepting all operations, including create, write, and update, of performed by applications to all the data items, and automatically assigning a data property identifier to each of the data items based on current update statistics in the database, such that the data items and assigned data property identifiers are transmitted over a memory channel.

Heuristic interface for enabling a computer device to utilize data property-based data placement inside a nonvolatile memory device

A system and method for satisfying Quality of Service (QoS) attributes for a stream using a storage device with multi-stream capability is described. The storage device may include memory to store data. A host interface may receive requests, some of which may be associated with a stream. A host interface layer may schedule the requests in a manner that may satisfy the QoS attribute for the stream.

Multi-stream SSD QOS management

An interface for enabling a computer device to utilize data property-based data placement inside a nonvolatile memory device comprises: executing a software component at an operating system level in the computer device that monitors update statistics of all data item modifications into the nonvolatile memory device, including one or more of update frequencies for each data item, accumulated update and delete frequencies specific to each file type, and an origin of the data item; storing the update statistics of each of the data items and each of the data item types in a database; and intercepting all operations, including create, write, and update, of performed by applications to all the data items, and automatically assigning a data property identifier to each of the data items based on current update statistics in the database, such that the data items and assigned data property identifiers are transmitted over a memory channel to the non-volatile memory device.

Multi-stream SSD QoS management

Example embodiments are described for data property-based data placement inside a nonvolatile memory device performed by a storage controller of the nonvolatile memory device. In one aspect, the embodiments include: executing a software component on the computer device that detects at least one of an executing application and a hardware device connecting to the computing device; responsive to detecting the at least one executing application and the hardware device, searching, by the software component, a workflow repository to find a predetermined workflow associated with the at least one executing application and the hardware device, wherein the predetermined workflow associates predefined data property identifiers to different types of data items written to the nonvolatile memory device by the executing application or the hardware device; comparing, by the software component, activities of the at least one executing application and the hardware device to the predetermined workflow; and using the predetermined workflow to automatically assign the data property identifiers to the data items used by the application or the hardware device, such that the data items and assigned data property identifiers are transmitted over a channel to the nonvolatile memory device for storage wherein the nonvolatile memory device reads the data property identifiers and identifies which blocks of the nonvolatile memory device to store the corresponding data items, such that the data items having the same data property identifiers are stored in a same block.

Data property-based data placement in a nonvolatile memory device

A system and method for satisfying Quality of Service (QoS) attributes () for a stream () using a storage device () with multi-stream capability is described. The storage device () may include memory () to store data. A host interface () may receive requests (), some of which may be associated with a stream (). A host interface layer () may schedule the requests () in a manner that may satisfy the QoS attribute () for the stream ().

A system and method for permitting an SSD () to perform passive Garbage Collection is described. The SSD () may include storage () to store data, and a Garbage Collection logic () that may perform Garbage Collection on the storage (). Reception circuitry () may receive a configuration command () from a host (). The configuration command () may include a condition (), such as an idle duration () and/or a queue depth threshold (). A condition storage () may store the condition (). A state determiner () may determine a state () of the SSD (). A comparator () may compare the state () of the SSD () with the condition () to determine whether to trigger passive Garbage Collection.

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Union City, CA, United States of America

Derrick Tseng