Microsoft Technology Licensing, LLC

Western Digital Technologies, Inc.

Nathan Steven Obr

Frank J Shu

Vladimir Sadovsky

William Jefferson Westerinen

Cenk Ergan

Michael Richard Fortin

Michael James Zwilling

Mark Joseph Zbikowski

Hanumantha Rao Kodavalla

John M Parchem

Clark David Nicholson

Patrick L Stemen

Rajeev Y Nagar

Therron Powell

Dean L DeWhitt

Surenda Verma

Dan Teodosiu

Robin Andrew Alexander

Emily Nicole Hill

James Bovee

Andrew M Herron

Yi Meng

David Burg

Sompong Paul Olarig

Scott Chao-Chueh Lee

Emily Nicole Wilson

Shiv Kumar Rajpal

Robert Dale Rinne

Daniel Teodosiu

Vincent Orgovan, Jr

James C Bovee

Dean L Dewhitt

Technologies for identifying data stored on a solid state drive ('SSD') device that correspond to data associated with a delete event, and marking the deleted data stored on the SSD as invalid such that the SSD can avoid unnecessary operations on the invalid data. Included are interfaces operable to communicate invalid data information and providing a remove-on-delete command that provides invalid data information sufficient to identify the SSD data to be marked as invalid.

Remove-on-delete technologies for solid state drive optimization

Technologies for an operating system identifying SSD and CSSD devices based on a corresponding descriptor, and for optimizing operating system functionalities with respect to the SSD/CSSD device. Optimizations include disabling non-SSD/CSSD functionalities, such as HDD defragmentation, and by enabling SSD/CSSD specific functionalities, such as write optimization storage functionalities.

Composite solid state drive identification and optimization technologies

In order to provide a more efficient persistent storage device, one or more long-term storage media are included along with a non-volatile memory. In one embodiment, one portion of the non-volatile memory is used as a write buffer and a read cache for writes and reads to the long-term storage media. Interfaces are provided for controlling the use of the non-volatile memory as a write buffer and a read cache. Additionally, a portion of the non-volatile memory is used to provide a direct mapping for specified sectors of the long-term storage media. Descriptive data regarding the persistent storage device is stored in another portion of the non-volatile memory.

Non-volatile memory cache performance improvement

Systems and methods for utilization of notification or ordering commands are disclosed that can enable more efficient processing of flush requests from software programs and increase data consistency in storage devices. A data storage device or system may include a non-volatile memory, a memory comprising a data cache and a controller. The controller may be configured to receive an ordering command requesting commitment to the non-volatile memory of cached data items associated with a first identifier prior to commitment of cached data items associated with a second identifier, and to delay commitment of the second data item to the non-volatile memory until commitment of the first data item to the non-volatile memory, based at least in part on the ordering command. The controller may be further configured to select data items from the data cache for commitment to the non-volatile memory in accordance with native command queuing (NCQ).

Ordering commitment of data from a data cache to nonvolatile memory using ordering commands

Technologies for identifying data stored on a solid state drive ('SSD') device that correspond to data associated with a delete event, and marking the deleted data stored on the SSD as invalid such that the SSD can avoid unnecessary operations on the invalid data. Included are interfaces operable to communicate invalid data information providing a remove-on-delete command that provides invalid data information sufficient to identify the SSD data to be marked as invalid.

Systems and methods for utilization of notification or ordering commands are disclosed that can enable more efficient processing of flush requests from software programs and increase data consistency in storage devices. A storage device can obtain a notification command from a host system identifying one or more data items in a cache of the storage device, determine whether the one or more data items have been committed to non-volatile memory of the storage device, and transmit a notification to the host system upon determining that the one or more data items have been committed. The host system may utilize these commands to process flush requests, such that upon receiving a flush request, a notification command may be issued requesting a notification from the storage device that the relevant data has been committed. Notification commands can target or limit the scope of a flush request, such that the speed and efficiency of the flush request processed using notification commands is increased relative to a non-specific full-cache flush. Such increases in efficiency of flush requests may greatly increase the speed and efficiency of storage devices, and consequently the performance of programs utilizing such storage devices.

Identification of data committed to non-volatile memory by use of notification commands

Systems and methods for utilization of notification or ordering commands are disclosed that can enable more efficient processing of flush requests from software programs and increase data consistency in storage devices. For example, when an application requests that a data cache be flushed, a computing device may&#x2014;instead of completely emptying the data cache&#x2014;notify the application of a successful flush once relevant data of the application has been committed to non-volatile memory. Targeted notifications, which may identify the relevant data in the data cache, can limit the scope of a flush request, such that the speed and efficiency of the command is increased relative to a non-specific full-cache flush. Such increases in efficiency of flush requests may greatly increase the speed and efficiency of storage devices, and consequently the performance of programs utilizing such storage devices.

Processing flush requests by utilizing storage system write notifications

Methods and devices are provided for adapting an I/O pattern, with respect to a processing device using a non-volatile block storage device based on feedback from the non-volatile block storage device. The feedback may include information indicating a status of the non-volatile block storage device. In response to receiving the feedback, a storage subsystem, included in an operating system executing on processing device, may change a behavior with respect to the non-volatile block storage device in order to avoid, or reduce, a negative impact to the non-volatile block storage device or to enhance an aspect of the non-volatile block storage device. The feedback may include performance information and/or operating environmental information of the non-volatile block storage device. When the non-volatile block storage device is not capable of providing the feedback, the processing device may request information about the non-volatile block storage device from a database service.

Health reporting from non-volatile block storage device to processing device

Power consumption of a device (e.g., flash storage driver, hard drive, etc.) connected to a host computer system is managed to promote efficient power usage and improved service. Communication between a host computer system (e.g., an operating system) and a device is enabled so that the host system can ascertain a power footprint of the device. Taking the power footprint of the device into consideration, along with the power consumption of the system as a whole (e.g., including the power consumption needs of other devices), a power manager can provide a power budget to the device based upon an informed decision. This allows for improved system power management through a coordination of the device's power consumption by the host system, specifically during operation allowing device performance to be enhanced for the task at hand.

Integrating energy budgets for power management

Growing community of inventors

Bellevue, WA, United States of America

Nathan Steven Obr