A fix is available
APAR status
Closed as program error.
Error description
Resolution of minor errors in IZPCA Workload Simulation configuration files. Enhancements to Workload Simulator to improve consistency of results.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All users of IBM Z Performance and Capacity * * Analytics Version 3.1.0 making use of the * * Workload Simulator. * **************************************************************** * PROBLEM DESCRIPTION: In certain circumstances the Workload * * Simulator produces inconsistencies * * in results and in the degradation * * factors for online workloads. * * * * The Workload Simulator issues * * messages with an incorrect identifier. * * * * The Workload Simulator fails if * * run with .level=INFO. * * * * Workload Simulator will run against * * RMF intervals that are very short. * * * * Running Workload Simulator against * * short RMF intervals produce a * * simulation result that is not * * representative of the systems * * behaviour. * **************************************************************** * RECOMMENDATION: Apply the provided PTFs. * **************************************************************** The Workload Simulator produces some inconsistent results. Dispatching may favour high priority batch workloads. The Workload Simulator may produce a varying degradation factor for online workloads in different runs. Some Workload Simulator messages are issued with an incorrect identifier. The Workload Simulator crashes if run with .level set to INFO. If the Workload Simulator is run against very short RMF intervals it produces a simulation result that is not representative of the systems behaviour.
Problem conclusion
The Workload Simulator is modified such that it produces consistency between runs. The calculation of the online workload degradation factor has been amended to provide consistency between runs. Messages issued by the Workload Simulator have been amended to ensure compliance with IZPCA message standards. The Workload Simulator will complete successfully when .level is set to INFO. A new error message, DRLJ0478E, is issued if the selected RMF Interval has data for less than 120 seconds.
Temporary fix
Comments
APAR Information
APAR number
PH37985
Reported component name
TDS FOR Z/OS
Reported component ID
569510100
Reported release
CA8
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2021-06-08
Closed date
2022-02-08
Last modified date
2022-03-01
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI79186 UI79187
Modules/Macros
DRLDOD32 DRLDOD38 DRLPJCO DRLPJDM DRLPJDS DRLPJSD DRLPJSM DRLTCPS1 DRLTKZX1
Fix information
Fixed component name
TDS FOR Z/OS
Fixed component ID
569510100
Applicable component levels
Fix is available
Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.
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Document Information
Modified date:
02 March 2022