Multipath power management
US8127165B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2009 |
| Grant date | Feb 28, 2012 |
| Priority date | — |
| Expiry date | Jun 28, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a method of controlling power. Multiple paths via multiple I/O ports couple a server to a storage array. When I/O loads are low, it is determined if an I/O port may be deactivated and placed in a power saving mode. An I/O port may not be deactivated if deactivating that I/O port will affect a high-availability requirement or a performance requirement. Requests are stopped from being sent to an I/O port to be deactivated. When the port to be deactivated becomes idle, the I/O port is placed in a power saving mode. When I/O loads increase to a point where it is necessary to reactivate the I/O port, the I/O port is activated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.