z System authorized compression services The following compression services are available when using z System authorized interfaces for zEDC: FPZ4RZV - Rendezvous compression service FPZ4PRB — Probe device availability compression service FPZ4RMR - Memory registration compression service FPZ4DMR - Deregister memory compression service FPZ4ABC — Submit compression request FPZ4URZ - Unrendezvous compression request