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® 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.

For details about z/OS support and considerations, go to Sub-Capacity for z/OS.

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 Sub-Capacity for z/TPF.

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

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:
  • The four-hour rolling average utilization, by LPAR
  • Which eligible products were active in each LPAR

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:
  • In z/OS environments: System Management Facilities (SMF) data, specifically, SMF type 70, subtype 1 (CPU Activity) records and SMF type 89, subtypes 1 and 2 (Product Use) records
  • In z/TPF and z/VSE environments: SCRT89 records
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:
  • A partitioned data set (PDS) with one member for each CPC found in the input data stream. Each member is one sub-capacity report. The report is a text file in comma-separated value (.csv) format, which can most easily be read by a spreadsheet program. For more information, see Using the Sub-Capacity Reporting Tool.
  • A sequential data set that contains a single text file in comma-separated value (.csv) format. This file contains all the reports for the CPCs in the input stream to SCRT and can be used to submit reports to the license management support (LMS) application. For details on how to set this up, see the description of the OUTPUT DD statement in Using the Sub-Capacity Reporting Tool.
SCRT also does the following:
  • Provides a simple, non-intrusive means for you to generate sub-capacity reports that show required license capacity for all eligible sub-capacity products that execute on a CPC
  • Allows IBM to receive, view and store sub-capacity reports received from customers
  • Allows IBM to generate customer bills according to the sub-capacity reports received from customers