6. DATA SOURCES › 6.12 Multisystem Enclaves Overview › 6.12.2 Enabling Multisystem Enclaves

6.12.2 Enabling Multisystem Enclaves

 This section describes what needs to be done to begin using
 multisystem enclaves.

DEFINE A COUPLING FACILITY STRUCTURE

 A coupling facility provides common memory for a sysplex
 partitioned dynamically into lock, cache, and list
 structures. It holds status information required for
 communication and data sharing activity between systems.

 The CRFM (Coupling Resource Facility Manager) policy has to
 have the SYSZWLM_WORKUNIT structure defined to it.  The
 workload manager (WLM) will automatically connect to the
 structure when the definition is started, thus allowing
 multisystem enclaves to be used.

 The CFRM couple data needs to be formatted to support
 system-managed rebuild.