A method for expanding and contracting a resource pool dynamically, i.e. in response to demand for the resources, is disclosed. Resources are allocated for use from a single master pool 22. The overall pool of available resources is expanded by creating an extension pool and adding its resources to the...http://www.google.de/patents/US5093912?utm_source=gb-gplus-sharePatent US5093912 - Dynamic resource pool expansion and contraction in multiprocessing environments