High availability and I/O aggregation for server environments
US8677023B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2005 |
| Grant date | Mar 18, 2014 |
| Priority date | — |
| Expiry date | Oct 23, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/1097
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus are provided for virtualizing port adapter resources such as network interface cards (NICs) used to connect servers to packet based networks. Resources are offloaded from individual servers onto a resource virtualization switch. Servers connected to the resource virtualization switch using an I/O bus connection share access to NICs. Redundancy can be provided using multipathing mechanisms implemented at individual servers or high availability mechanisms implemented at the resource virtualization switch. Switchover can occur between ports on the same port adapter, between ports on separate adapters, or between ports on separate resource virtualization switches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.