IBM® intends to provide exploitation of the Flash Express® feature on IBM zEnterprise® EC12 (zEC12) and zBC12 servers with CFLEVEL 19 for certain coupling facility list structures in the first half of 2014. This new function is designed to allow list structure data to migrate to Flash Express memory as needed, when the consumers of data do not keep pace with its creators for some reason, and migrate it back to real memory to be processed. When your installation uses WebSphere® MQ for z/OS Version 7 (5655-R36), this new capability is expected to provide significant buffering against enterprise messaging workload spikes and provide support for storing large amounts of data in shared queue structures, potentially allowing several hours' data to be stored without causing interruptions in processing. In addition, z/OS V2R1 Resource Measurement Facility™ (RMF™) is planned to provide measurement data and reporting capabilities for Flash Express when it is used with coupling facilities. Information about externals and interfaces that are related to this planned capability are being made available in z/OS V2R1 for early planning and development purposes only.