z/OS: Advanced z/OS Performance: Sysplex, WLM and Unix System Services

Course Overview

Many z/OS customers' workloads exploit the latest features of the z/OS runtime environment, including Parallel Sysplex, WLM and UNIX System Services (USS). This advanced course examines the performance management, tuning and monitoring components of the Parallel Sysplex / USS / WLM environment, using extensive RMF reports and console displays to understand what is happening in the system. Then, based on this foundation, case studies including Parallel Sysplex, z/OS UNIX workloads and HTTP Server, are analyzed in detail, giving the student a complete picture of WLM in today's complex z/OS execution environment.

This course uses the growth in e-business on the z/OS platform as a basis for exploitation of Parallel Sysplex and z/OS UNIX workloads, however, it is equally applicable to non e-business solutions.

Audience

pz/OS Systems Programmers, experienced Performance Analysts and Performance Administrators, UNIX Services support personnel, and other experienced I/S professionals who want to update their WLM, RMF and performance management skills to include the latest z/OS Parallel Sysplex and z/OS UNIX runtime environment.

Skills Gained

You will learn to:

• Describe the current e-business environment, and the roles that z/OS can play in supporting new e-business applications.
• Identify Coupling Facility technologies and how they function in a Parallel Sysplex, including CF links and CF structures.
• Monitor and analyze the service times and other performance indicators of the CF and other Parallel Sysplex components, including XCF.
• Monitor and control the UNIX System Services program environment using RMF reports and SMF data along with USS console commands and displays
• Tune USS resource usage, shell performance and file system (HFS) performance
• Configure WLM's management of the USS environment, including BPXAS and classification of USS workloads
• Identify WLM Services and their use by e-business applications, including enclave services, Sysplex routing services and Application Environments
• Evaluate RMF enclave reports and understand enclave resource accounting
• Set up WLM management of the HTTP Server and classify a web workload in both Standalone Mode and Scalable Mode

Monitor and analyze the performance of other e-business applications that exploit USS, WLM and Parallel Sysplex, such as applications that exploit USS, WLM and Parallel Sysplex, such as Java applications, WebSphere, using RMF reports

Prerequisites

A working knowledge of the z/OS operational environment is assumed, including a basic knowledge of WLM, Unix System Services, and Parallel Sysplex. Previous experience and/or training in z/OS measurement and tuning and RMF are also assumed

Course Outline

• Overview of the z/OS e-business workloads
• Parallel Sysplex and Coupling Facility Architecture
• Coupling Facility technology, links, performance and service times
• A tuner's view of the Parallel Sysplex
• CF monitoring and reporting
• WLM Services
• Enclave reporting and accounting
• Application Environments
• Controlling UNIX System Services Program Environment
• WLM classification of USS workloads
• Controlling USS processes and threads, and displaying USS information
• USS and HFS performance monitoring and tuning
• WebSphere architecture
• Scalable HTTP server
• HTTP workload classification and monitoring
• Monitoring and tuning Java applications

z/OS: Advanced z/OS Performance: Sysplex, WLM and Unix System Services / ES851GB (ES851GBGB)