This course provides the fundamentals of z/OS performance management for systems programmers and performance analysts. Specific topics will focus on the basics of performance management, resources components that are affected, and the workload manager definitions that will be used to assign resources according to priorities. In addition, exercises related to problem diagnosis and tuning adjustments will be used to illustrate the effects of various decisions.

Mainframe Training Audience

Systems programmers and performance analysts that need a better understanding of performance management, performance metrics, and the means for defining resource distribution using Workload Manager (WLM)

Workstations are needed for this session.

Mainframe Training Prerequisites

z/OS Fundamentals or equivalent knowledge.

Mainframe Training Course duration

5 days

Mainframe Training Course outline

Performance Management Overview
	Define elements of performance tuning Examine basic queuing models Interpret results of queuing theory models
System Components of Tuning: Processor
	Evaluate processor power ratings Examine key processor metrics Review data gathering methods for processor metrics
System Components of Tuning: Memory
	Review paging/swapping mechanism Examine real, expanded, and auxiliary storage metrics Review data gathering methods for storage metrics
System Components of Tuning: I/O
	Review I/O subsystem components Examine I/O metrics Review data gathering methods for I/O metrics
Workload Characterization
	Review processes for grouping comparable workloads Establishing workload objectives
Managing System Resources
	Service class definitions:           Importance levels           Execution velocity           Response time goals           Performance Index           Classification rules Setting exception conditions           Resource groups           CPU/storage critical settings Service coefficients and options           Service coefficients           I/O priority management           Dynamic alias management Applications environment           Specifying and managing application environments           Server limits for application environment Scheduling environments           Specifying scheduling environments           Managing resource states WLM managed initiators Intelligent Resource Director           LPAR CPU Management           Dynamic Channel Path Management           Channel Subsystem Priority Queuing Workload licensing limits SMF type 99 records
Monitoring and Tuning Systems
	Diagnose various performance problems Examine tracking mechanisms available through RMF Review performance reporting and data interpretation