Patent · US Active

Method, apparatus, and computer usable program code for migrating virtual adapters from source physical adapters to destination physical adapters

US7937518B2 · kind B2 · utility

30Cited by

26References

11Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

William T. Boyd · Poughkeepsie, US
Douglas M. Freimuth · New York, US
William G. Holland · Cary, US
Steven W. Hunter · Raleigh, US
Renato J. Recio · Austin, US
Steven M. Thurber · Austin, US
Madeline Vega · Austin, US

Key dates

Filing date	Dec 22, 2008
Grant date	May 3, 2011
Priority date	—
Expiry date	Oct 22, 2029

Classification

Technology area (CPC G)Physics
CPC primaryG06F9/5077
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A computer-implemented method, apparatus, and computer usable program code are disclosed for migrating a virtual adapter from a source physical adapter to a destination physical adapter in a data processing system where multiple host computer systems share multiple adapters and communicate with those adapters through a PCI switched-fabric bus. The virtual adapter is first caused to stop processing transactions. All in-flight transactions that are associated with the virtual adapter are then captured. The configuration information that defines the virtual adapter is moved from the source physical adapter to the destination physical adapter. The in-flight transactions are then restored to their original locations on the destination virtual adapter. The virtual adapter is then restarted on the destination physical adapter such that the virtual adapter begins processing transactions.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.