IBM Enterprise Workload Manager Release 1

© Copyright IBM Corp. 2004. All rights reserved. ix

Preface

This IBM Redbook provides an introduction to the Enterprise Workload Manager (EWLM). In

addition to describing the overall product concept and functionality, it presents a detailed

discussion of the elements that are part of the solution.

Step-by-step instructions take you through the installation of EWLM code on multiple

platforms, for both the domain manager and managed servers, and also show how to enable

the instrumentation of the middleware for a 3-tier Web application. The features for

administering EWLM are described, along with the monitoring and reporting capabilities.

A sample scenario implemented in the ITSO environment is used to guide you through the

process of classifying workload, and defining and deploying your own EWLM policy. This

scenario is then used to demonstrate techniques for securing your implementation.

The load balancing capabilities of EWLM are described. Troubleshooting hints and tips are

provided, along with some basic performance considerations to help you design the optimum

EWLM solution.

The team that wrote this redbook

This redbook was produced by a team of specialists from around the world working at the

International Technical Support Organization, Poughkeepsie Center.

Paola Bari is an Advisory Programmer at the International Technical Support Organization,

Poughkeepsie Center. She has 22 years of experience as a systems programmer in

OS/390®, z/OS®. and Parallel Sysplex, including several years of experience in

WebSphere® MQ and WebSphere Application Server.

Christopher Covill is a Certified IT Specialist with 28 years of experience in systems

programming (Network, CICS, DB2®, VM, MVS, VSE), performance, as well as systems and

applications Assembly Language programming work. He is currently the team lead for the

IBM Global Services Performance Services Team in Boulder, Colorado providing service to

the distributed as well as mainframe platforms. Performance, a key issue during the IBM

HONE application rightsizing effort from the mainframe to AIX®, was managed and

considered one of Chris's major accomplishments on the distributed platform.

Klaus Majewski is the Technical Director for Stonesoft in the USA. He holds an M.Sc. in

Computer Science from the Helsinki University of Technology. Before joining Stonesoft in

1999 Mr. Majewski worked as a Security Consultant for IBM Finland. For Stonesoft, Klaus

started in Security Consulting and R&D. During the past 3 years he has worked with

certifications for Stonesoft Firewall and VPN products (Common Criteria EAL4+, FIPS 140-2,

and ICSA). He is responsible for technical issues pertaining to Stonesoft products on IBM

platforms in the US. He has CISSP and CISA certifications.

Cathrin Perzl is an IT Specialist from IBM Munich, Germany. She is a member of the

pSeries® Technical Sales Team of the Systems and Technology Group in EMEA Central

Region. Her areas of expertise and main responsibilities are pSeries, AIX, and Workload

Manager support to customers. Cathrin is an IBM eServer™ Certified Specialist in AIX

System Administration, AIX System Support, and p690 Technical Support. She holds a

Master's degree in Mathematics and Physics from York University, UK.