Front cover End to End Performance Management on IBM i Understand the cycle of Performance Management Maximize performance using the new graphical interface on V6.1 Learn tips and best practices Hernando Bedoya Mark Roy Nandoo Neerukonda Petri Nuutinen ibm.com/redbooks International Technical Support Organization End to End Peformance Management on IBM i November 2009 SG24-7808-00 Note: Before using this information and the product it supports, read the information in “Notices” on page ix. First Edition (November 2009) This edition applies to Version 6.1 of IBM i (5761-SS1). © Copyright International Business Machines Corporation 2009. All rights reserved. Note to U.S. Government Users Restricted Rights -- Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp. Contents Notices . ix Trademarks . .x Preface . xi The team who wrote this book . xi Become a published author . xiii Comments welcome. xiii Part 1. Introduction to managing performance on IBM i. 1 Chapter 1. Introduction to performance management . 3 1.1 Why do performance management. 4 1.2 Performance management made easy . 4 1.3 What affects the performance . 5 1.4 User expectations . 5 1.4.1 Performance objectives . 6 1.4.2 Performance measurement. 7 1.4.3 Performance evaluation . 7 1.5 Hardware performance . 8 1.5.1 Central processing unit . 8 1.5.2 Main storage . 8 1.5.3 Disk . 9 1.6 Work management setup . 9 1.7 Software performance. 9 1.7.1 IBM software performance . 9 1.7.2 Database performance . 9 1.7.3 Applications performance . 10 1.8 Network performance . 10 1.9 The need for a baseline . 10 1.9.1 Some definitions . 10 Chapter 2. Performance management life cycle. 13 2.1 Describing the performance management life cycle . 14 2.2 Planning for performance management . 14 2.3 Performance management strategies . 15 2.3.1 Performance management strategy for a small business. 15 2.3.2 Performance management strategy for a mid-sized business . 16 2.3.3 Performance management strategy for a large business . 16 2.4 Create the baseline . 16 2.4.1 Selecting data for a baseline. 17 2.5 Monitor the partition performance . 17 2.6 Collect the data . 17 2.7 Analyze the data . 18 2.8 Remove the identified performance problem . 18 2.9 Tune the partition . 18 2.10 Analyze the trend . 19 2.11 Plan for capacity changes . 20 2.12 Which tools to use during the cycle. 20 2.12.1 IBM Systems Director Navigator for i performance interface . 20 © Copyright IBM Corp. 2009. All rights reserved. iii 2.12.2 Collection Services . 21 2.12.3 IBM Performance Management for Power Systems. 21 2.12.4 System i Navigator Graph History function . 22 2.12.5 SQL performance Monitors. 22 2.12.6 Performance Tools for i. 23 2.12.7 Job Watcher . 23 2.12.8 Disk Watcher. 23 2.12.9 Performance Explorer . 24 2.12.10 Using the appropriate tool. 24 Part 2. IBM i tools . 27 Chapter 3. Overview of data collectors and tools . 29 3.1 Performance data collection overview . 30 3.1.1 Built-in metrics . 30 3.1.2 Wait accounting . 31 3.1.3 Storing collected data . 34 3.2 Performance data collectors overview . 34 3.2.1 Collection Services collector . 34 3.2.2 Job Watcher collector . 36 3.2.3 Disk Watcher collector . 36 3.2.4 Performance Explorer collector. 37 3.3 Data analysis and monitoring tools . 37 3.3.1 Relationship between collectors and tools . 38 3.3.2 Tool usage . 39 3.3.3 Tool packaging . 45 Chapter 4. IBM i Performance Data Collectors . 47 4.1 Introduction to data collectors . 48 4.2 Collection Services . ..