Data storage devices with performance-aware power capping

摘要

Systems, methods, and firmware for power control of data storage devices are provided herein. In one example, a data storage device is presented. The data storage device includes a storage control system to identify a power threshold for the data storage device. The data storage device determines power consumption characteristics for the data storage device and enters into a power controlled mode for the data storage device that adjusts at least a storage transaction queue depth in the data storage device to establish the power consumption characteristics as below the power threshold for the data storage device.

主权项

1. A method for operating a data storage device to control power usage of the data storage device, the method comprising:
identifying a power threshold for the data storage device; determining power consumption characteristics for the data storage device by at least:
writing a set of identifiers to predefined locations on storage media of the data storage device responsive to an asynchronous request from a host system;measuring associated power usage from writing the set of identifiers; and entering into a power controlled mode for the data storage device; and responsively adjusting at least a storage transaction queue depth in the data storage device to establish the power consumption characteristics as below the power threshold for the data storage device.