Hot removing an I/O module with multiple hot plug slots
US9678914B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2014 |
| Grant date | Jun 13, 2017 |
| Priority date | — |
| Expiry date | May 18, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/4413
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a method for ejecting a plurality of hot plug slots sharing a power controller, a processor receives a request to eject a plurality of hot plug slots, wherein the plurality of hot plug slots share a power controller and have at least two adapters present. A processor causes an OS to incrementally eject the at least two adapters, wherein ejecting an adapter comprises the OS stopping at least one driver of the adapter, and the OS generating a request to remove power from a hot plug slot. Responsive to a request by the OS to remove power from a hot plug slot, a processor generates a signal that prevents the OS from recognizing the adapter is present in the hot plug slot. Responsive to all device drivers for the at least two adapters being stopped, a processor causes power to be removed from the plurality of hot plug slots.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.