IBM System z Software Pricing

Sub-Capacity Corner

SCRT Guidance

For best results, read the Sub-Capacity Reporting Tool User Guide (PDF, 1.8MB) to learn about collecting the correct SMF records, creating the correct input dataset, running the SCRT, interpreting the Sub-Capacity Report and submitting the Sub-Capacity Report to IBM.

SCRT System z Configuration Requirements

SCRT relies on LPAR rolling 4-hour average utilization and requires a WLM SPE (OW55509, which is now closed and PTFs are available) to enable z/OS to collect and record rolling 4-hour average utilization data for native z/OS partitions.

Before the PTFs were available, IBM had recommended temporary workaround. The temporary workaround is no longer necessary. Please proceed to the SCRT Maintenance Page to read more about APAR OW55509, which applies to z/OS V1 Release 1 - Release 4.

How to Dynamically Set Defined Capacity

You are able to set and/or change an LPAR's defined capacity non-distruptively, without requiring either an IPL or an LPAR deactivate/activate. Here are the steps:

For more information, see the PR/SM Planning Guide. Page 5-5 shows the panel on the HMC that you should use to change defined capacity on the currently running system.

Sub-Capacity Reporting Tool Overview Instructions

Launch the tool (scrttool.exe) on your PC to de-compress the file; the decompressed file will be named scrttool.bin

Upload the file (Scrttool.bin) to your host system. Use binary transfer and move the file to a 80 byte fixed dataset. Here's how to upload the file:

Customize and run the job to run on your host system.

Download the job output (a text file) from your host system to your PC.

View the downloaded output file, scrt.csv, with any spreadsheet or text editor that recognizes the "comma separated values" file format.

Add comments or make changes to the report in any field marked with 'ZZZZZ'. Then submit your report via the Internet as described on the Where to Send Reports page.

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