Hypervisor controlled redundancy for I/O paths using virtualized I/O adapters
US10387180B2 · kind B2 · utility
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6References
12Claims
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Key dates
| Filing date | Jul 7, 2015 |
| Grant date | Aug 20, 2019 |
| Priority date | — |
| Expiry date | Dec 23, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2009/45583
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, system, and program product for hypervisor controlled redundancy for Input/Output (I/O) paths using virtualized I/O adapters is provided. A hypervisor detects a virtual machine exceeding a pre-defined bandwidth threshold. The hypervisor searches a shared pool of free virtual functions (VF) for a free VF. If the shared pool of free VFs is not depleted, a free VF is allocated to the virtual machine (VM). If the shared pool of free VFs is depleted, the active VMs are examined for VF capacity that may be donated to the triggering VM.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.