Peak number

If you use MVS global resource serialization, the wizard allocates a structure for the global resource serialization star configuration.  To build the structure, the wizard needs to know the number of global resources that global resource serialization processes at a peak load time for your configuration.

The number of peak global resources equals the number of unique outstanding globally-managed resource requests (SYSTEMS ENQs and converted RESERVEs), measured at a peak load time. To obtain the number of outstanding global requests, use the utility program ISGSCGRS in SYS1.LINKLIB.

The number of outstanding requests is shown in the third column of the report. To execute the utility, use the sample JCL found in SYS1.SAMPLIB member ISGCGRS.

If you change the value during another customization, the wizard recalculates the size of the ISGLOCK structure and reformats the CFRM couple data sets.

If you are using a different serialization program, you will need to follow the recommendations for your serialization product. If you answer No to "Are you using GRS to serialize DASD or tape," the rest of the panel is disabled and no entries are created.