Multi-port power prediction for power management of data storage devices
US9921637B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2015 |
| Grant date | Mar 20, 2018 |
| Priority date | — |
| Expiry date | Oct 30, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Multi-port power prediction for power management of data storage devices is disclosed. For certain embodiments, a host interface within a port multiplier receives host messages from a host device for a plurality of data storage devices. The port multiplier then uses a plurality of ports to forward device messages to the data storage devices based upon the host messages. A power prediction controller determines target data storage devices for access commands within the host messages and generates power commands to adjust power modes for target data storage devices to place the target data storage devices in active power modes prior to access according to the access commands from the host device. Power up latency is thereby reduced or eliminated for the target data storage devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.