About the Sub-Capacity Reporting Tool

SCRT is a no-charge IBM® tool that reports required license capacity for sub-capacity eligible products that run on z/OS®, z/TPF, or z/VSE® operating systems. SCRT analyzes a month's worth of utilization data for IBM z Systems™ CPCs and produces a sub-capacity report. The sub-capacity report indicates the required license capacity (in MSUs) of each sub-capacity eligible product running on the z/OS, z/TPF, or z/VSE systems.

z/TPF and z/VSE support for sub-capacity differs from z/OS support, for example, by using SCRT89 records instead of SMF records. Unless specifically noted, the same concepts described for z/OS also apply to z/TPF and z/VSE.

For details about z/TPF support and its unique considerations, go to the Sub-Capacity Corner for z/TPF page.

For details about z/VSE support and its unique considerations, go to the Sub-Capacity Corner for z/VSE page.

Traditional sub-capacity pricing is based on the four-hour rolling average utilization of the LPARs in which the sub-capacity products execute. For each hour in the reporting period, SCRT determines the required license capacity by examining:

SCRT then cross-references LPAR utilization and product execution by LPAR to determine the maximum concurrent LPAR four-hour rolling average utilization—the highest combined utilization of LPARs where each product executes during the reporting period.

Products whose capacity is adjusted by Integrated Workload Pricing and products eligible for Getting Started Sub-Capacity Pricing use capacity algorithms that differ from those for traditional sub-capacity pricing. See Using the Sub-Capacity Reporting Tool for a description of these algorithms.

SCRT processes the following data: SCRT uses the data sets specified in the JCL as input, and has a single data set as output. To comply with sub-capacity pricing terms and conditions, the input data sets must contain one reporting period of SMF type 70 and type 89 records for all the z/OS images and SCRT89 records for all z/TPF images on a zArchitecture CPC. (For more information about the reporting period, see Analyzing the sub-capacity report.) The output can be:
SCRT also does the following: