International Business Machines Corporation

Norman Ehsan Shafa

Jeffrey Paul Kubala

Roger E Hough

James Edward Bostick

Paul Gregory Greenstein

Beth A Glendening

John Ted Rodell

David E Stucki

Ira Glenn Siegel

Jonel George

Suzanne M John

Karen M Noonan

A dynamic reconfiguration request for a change in a system's physical configuration is transmitted from a configuration controller to a hypervisor controlling operating systems executing in one or more partitions of the system. The hypervisor translates the physical reconfiguration request into a request for reconfiguration of logical resources known to the operating systems, first verifying it against an installation policy, and passes the requests to the operating systems in the partitions. The operating systems perform logical reconfiguration, then request physical reconfiguration of the hypervisor. The hypervisor initiates the physical reconfiguration through the configuration controller.

System and method for dynamically performing resource reconfiguration in

A request is made by a system in a first logical partition, within a logically partitioned data processing system, to dynamically change the I/O configuration of the host system in a way that affects a system in a second logical partition. The hypervisor intercepts the request, ensures the serialization of such dynamic I/O requests, and allows dynamic reconfiguration to proceed. Subsequently, the hypervisor determines the effect of the reconfiguration on the second partition, and notifies the second partition of the change.

Method and apparatus for dynamically changing the configuration of a

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Poughkeepsie, NY, United States of America

Norman Ehsan Shafa