A computer-implemented method includes identifying a primary computing platform, identifying one or more secondary computing platforms, and identifying a requesting virtual server. The requesting virtual server resides on the primary computing platform and is associated with one or more requesting clients. One or more donating virtual servers are identified. The donating virtual servers reside on the primary computing platform and are associated with one or more donating clients. One or more external virtual servers are identified. The external virtual servers reside on the secondary computing platforms. A resource donation scenario is determined. The resource donation scenario includes one or more resource exchanges between the requesting virtual server and the donating virtual servers. A resource adjustment scenario is determined. The resource adjustment scenario includes one or more resource exchanges between the external virtual servers. A corresponding computer program product and computer system are also disclosed.