Virtual machine management

Abstract

Disclosed aspects relate to virtual machine management in a shared pool of configurable computing resources. A single multi-node server may be established. The single multi-node server may include a running virtual machine, a set of computing resources that includes a possessed subset of the set of computing resources, a source hypervisor, and a target hypervisor. The possessed subset of the set of computing resources may be assigned to the target hypervisor from the source hypervisor. The running virtual machine may be run using the target hypervisor.

1 . A computer-implemented method for virtual machine management in a shared pool of configurable computing resources, the method comprising:
 establishing a single multi-node server that includes:
 a running virtual machine, 
 a set of computing resources that includes a possessed subset of the set of computing resources which is possessed by the running virtual machine, 
 a source hypervisor which has the running virtual machine with respect to a first temporal period, wherein the source hypervisor is configured to manage the possessed subset of the set of computing resources, and 
 a target hypervisor to have the running virtual machine with respect to a second temporal period which is subsequent to the first temporal period, wherein the target hypervisor is configured to manage the possessed subset of the set of computing resources; 
 wherein establishing the single multi-node server comprises configuring both the source hypervisor and the target hypervisor using a single service processor to establish a logical topology for the single multi-node server that includes a first logical domain for the source hypervisor and a second logical domain for the target hypervisor; 
   wherein the method further comprises:   assembling, with respect to the first temporal period, a set of memory regions of a segment of a node coupled with the source hypervisor;   designating, via the single service processor, a serial bus of the single multi-node server for two-way serial communication between the source hypervisor and the target hypervisor;   communicating a set of scheduling-related control information for the running virtual machine from the source hypervisor to the target hypervisor via the single service processor, the set of scheduling-related control information comprising a collection of data that indicates timing, duration, and resource usage of workload activity for the running virtual machine, wherein the collection of data includes a degree of importance for each of a plurality of tasks, a sequence for the plurality of tasks, and timing and duration information for at least one of the plurality of tasks to be performed in the future;   assigning, to the target hypervisor from the source hypervisor, the possessed subset of the set of computing resources which is possessed by the running virtual machine;   transferring, to the target hypervisor from the source hypervisor, management of the running virtual machine without copying a set of running virtual machine data from a set of memory regions of the single multi-node server that are allocated for use by the running virtual machine; and   running, using the target hypervisor, the running virtual machine;   wherein transferring management of the running virtual machine includes:   coupling, with respect to the second temporal period, the target hypervisor with the set of memory regions of the segment of the node; and   decoupling, with respect to the second temporal period, the source hypervisor with the set of memory regions of the segment of the node.