A method and system for selecting compatible systems for virtual server mobility. Responsive to determining a current location of a workload partition instance running on a managed server, mandatory compatibility tests specified in a compatibility policy associated with the workload partition instance are executed to compare properties of the managed server with properties of potential target systems. A list of potential target systems is generated that have passed the mandatory compatibility tests specified in a compatibility policy. Optional compatibility tests specified in a compatibility policy associated with the workload partition instance are executed. The potential target systems that have failed any of the optional compatibility tests are removed from the list to form a filtered list, wherein the filtered list comprises a list of potential target systems compatible to support relocation of process collections within the workload partition instance.