This workshop is available for delivery at your location.
Objectives
The following topics are presented:
Basics of WLM
- Service definitions and policies
- Workloads and service classes. What to do with heterogeneous service classes.
- The service class period concept
- Report classes
- Classification rules and classification groups
- Service definition coefficients
How WLM works
-Concept of dispatchable units and enclaves
-Goals, importance, and priorities
WLM functions
- Protecting work
- CPU critical
- Storage critical
- Min value in Resource Group
- Controlling Initiator Dispatch Priority
- Discovering when WLM has reached its limits to improve the performance of certain transactions
- Common mistakes when setting WLM goals
- Address spaces and enclaves WLM states
- Application environment
- Dynamic workload routing support
- All types of capping
- Intelligent Resource Director (IRD)
- WLM managed initiators
- Dynamic PAV
- WLM, zAAP, and JVM
- WLM pool of address spaces (for USS forked children)
- SMF 99 comments
Workload recommendations
- WebSphere Application Server
- Transactional workload considerations, including Execution Delay Monitoring (for CICS and IMS)
- DB2 workloads
- z/OS UNIX considerations
- TSO, STC, Batch, MQ, and APPC workloads
Description
In this workshop, the basic aspects of the z/OS Workload Manager (WLM), together with the latest features (through V1.13), are covered. The attendee will become familiar with the WLM functions, acquire knowledge on how to classify multiple workload types, and learn how to correctly build a policy to achieve the target performance goals. The workshop discusses how to create WLM policies based on business goals and the type of transactions running in an installation. During the workshop, the students will also learn how to use RMF for effective performance analysis.
Target Audience
IT specialists and operations professionals