NQRNL

The NQRNL system initialization parameter controls resource name list (RNL) processing by z/OS® global resource serialization, which can cause the scope value of a resource to change. CICS® uses z/OS global resource serialization to provide sysplex-wide protection of application resources.

NQRNL={NO|YES}

For more information on global resource serialization and RNL processing, see z/OS MVS Planning: Global Resource Serialization.

Valid values are as follows:

NO: NO is the default value in CICS. When NQRNL=NO is specified, the sysplex-wide EXEC CICS ENQ and EXEC CICS DEQ commands use the RNL=NO parameter on the z/OS ENQ or DEQ requests. Use NQRNL=NO when you are sure that you want the request to be processed only by z/OS global resource serialization using only the scope specified in the ENQMODEL resource definition in CICS. When NQRNL=NO is specified, the sysplex-wide EXEC CICS ENQ and EXEC CICS DEQ requests are ignored by alternative serialization products.
YES: When NQRNL=YES is specified, the sysplex-wide EXEC CICS ENQ and EXEC CICS DEQ commands use the RNL=YES parameter on the z/OS ENQ or DEQ requests. This parameter allows z/OS global resource serialization to perform RNL processing, searching an appropriate RNL to determine the scope of the resource. This setting is the default in z/OS.

For more information on using ENQMODEL definitions in CICS to specify the scope for resources, see ENQMODEL resources.