Midrange Workload License Charge (MWLC)

Midrange Workload License Charge (MWLC) is a monthly license charge price metric on the IBM zEnterprise EC12, IBM zEnterprise 196, System z10 and System z9 servers. It applies to z/VSE V5 and V4 and 13 key z/VSE-related middleware programs such as CICS TS for VSE, ACF/VTAM for VSE, and DB2 Server for VSE.

Sub-capacity pricing is based on a four-hour rolling average utilization of the z/VSE LPARs or z/VM guests observed within a one month reporting period. This requires reporting of the utilization. z/VSE uses the Capacity Measurement Tool (CMT) to produce the required SCRT89 accounting records.

SCRT has been enhanced to recognize and use z/VSE system capacities of less than one MSU when calculating overall capacities for z/VSE middleware products across all of the z/VSE systems on the same CPC.

Preparation for MWLC and SCRT

The following presentation gives an overview about the MWLC pricing:

The SCRT User Guide contains information about the minimum system requirements, one time setup and processing of the SCRT data.

For more information please also see the following links:


APARs required to run SCRT

z/VSE Version APAR Description
z/VSE V4.3 DY47197 Support to extract SCRT89 records with DATE and TIME offsets using IJBCMTRP.
z/VSE V4.2 DY47029 Support of reporting of z/VSE system image capacities of less than one MSU.
DY47152 Support to process CMT data files using IJBCMTRP that exceed 32767 tracks on ECKD disks.
DY47111 Support for System z196 (D/T2817). Includes DY47029 and DY47152.
DY47194 Support to extract SCRT89 records with DATE and TIME offsets using IJBCMTRP.
z/VSE V4.1 DY47027 Support of reporting of z/VSE system image capacities of less than one MSU.
DY47110 Support for System z196 (D/T2817). Includes DY47027 and DY47152.
DY47196 Support to extract SCRT89 records with DATE and TIME offsets using IJBCMTRP.

Getting help

Help for the Sub-Capacity Reporting Tool (SCRT) or anything related to Sub-Capacity pricing is available by emailing . If you have questions about the bill itself, please contact the IBM billing department.

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