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IBM Certification Study Guide
AIX HACMP
David Thiessen, Achim Rehor, Reinhard Zettler
International Technical Support Organization
http://www.redbooks.ibm.com
SG24-5131-00
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SG24-5131-00 International Technical Support Organization IBM Certification Study Guide AIX HACMP May 1999
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Take Note! Before using this information and the product it supports, be sure to read the general information in Appendix A, “Special Notices” on page 205. First Edition (May 1999) This edition applies to HACMP for AIX and HACMP/Enhanced Scalability (HACMP/ES), Program Number 5765-D28, for use with the AIX Operating System Version 4.3.2 and later. Comments may be addressed to: IBM Corporation, International Technical Support Organization Dept. JN9B Building 003 Internal Zip 2834 11400 Burnet
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Contents Figures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ix Tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xi Preface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xiii The Team That Wrote This Redbook . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv Comments Welcome . . . . . . . . . . . . . . . . .
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Chapter 3. Cluster Hardware and Software Preparation . . . . . . . . . . . 51 3.1 Cluster Node Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 3.1.1 Adapter Slot Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 3.1.2 Rootvg Mirroring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 3.1.3 AIX Prerequisite LPPs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 3.1.4 AIX Parameter Settin
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5.1.3 Event Notification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122 5.1.4 Event Recovery and Retry . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122 5.1.5 Notes on Customizing Event Processing . . . . . . . . . . . . . . . . . 123 5.1.6 Event Emulator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123 5.2 Error Notification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123 5.3 Network Modules
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8.1.1 The clstat Command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152 8.1.2 Monitoring Clusters using HAView . . . . . . . . . . . . . . . . . . . . . . 152 8.1.3 Cluster Log Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153 8.2 Starting and Stopping HACMP on a Node or a Client . . . . . . . . . . . . 154 8.2.1 HACMP Daemons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155 8.2.2 Starting Cluster Services on a Node
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9.3 VSDs - RVSDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190 9.3.1 Virtual Shared Disk (VSDs) . . . . . . . . . . . . . . . . . . . . . . . . . . . 190 9.3.2 Recoverable Virtual Shared Disk . . . . . . . . . . . . . . . . . . . . . . . 193 9.4 SP Switch as an HACMP Network . . . . . . . . . . . . . . . . . . . . . . . . . . 195 9.4.1 Switch Basics Within HACMP . . . . . . . . . . . . . . . . . . . . . . . . . . 195 9.4.2 Eprimary Management . . . .
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viii IBM Certification Study Guide AIX HACMP
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Figures 1. Basic SSA Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 2. Hot-Standby Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 3. Mutual Takeover Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 4. Third-Party Takeover Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 5. Single-Network Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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x IBM Certification Study Guide AIX HACMP
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Tables 1. AIX Version 4 HACMP Installation and Implementation . . . . . . . . . . . . . . . 4 2. AIX Version 4 HACMP System Administration . . . . . . . . . . . . . . . . . . . . . . 5 3. Hardware Requirements for the Different HACMP Versions . . . . . . . . . . . . 8 4. Number of Adapter Slots in Each Model . . . . . . . . . . . . . . . . . . . . . . . . . . 10 5. Number of Available Serial Ports in Each Model. . . . . . . . . . . . . . . . . . . 15 6. 7131-Model 405 SSA Multi-Storage Tower Spe
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xii IBM Certification Study Guide AIX HACMP
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Preface The AIX and RS/6000 Certifications offered through the Professional Certification Program from IBM are designed to validate the skills required of technical professionals who work in the powerful and often complex environments of AIX and RS/6000. A complete set of professional certifications is available. It includes: • IBM Certified AIX User • IBM Certified Specialist - RS/6000 Solution Sales • IBM Certified Specialist - AIX V4.3 System Administration • IBM Certified Special
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• AIX parameters that are affected by an HACMP installation, and their correct settings • The cluster and resource configuration process, including how to choose the best resource configuration for a customer requirement • Customization of the standard HACMP facilities to satisfy special customer requirements • Diagnosis and troubleshooting knowledge and skills This redbook helps AIX professionals seeking a comprehensive and task-oriented guide for developing the knowledge and skills
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POWERparallel Systems area, known as the SP1 at that time. In 1997 he began working on HACMP as the Service Groups for HACMP and RS/6000 SP merged into one. He holds a diploma in Computer Science from the University of Frankfurt in Germany. This is his first redbook. Reinhard Zettler is an AIX Software Engineer in Munich, Germany. He has two years of experience working with AIX and HACMP. He has worked at IBM for two years. He holds a degree in Telecommunication Technology. This is his fir
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xvi IBM Certification Study Guide AIX HACMP
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Chapter 1. Certification Overview This chapter provides an overview of the skill requirements for obtaining an IBM Certified Specialist - AIX HACMP certification. The following chapters are designed to provide a comprehensive review of specific topics that are essential for obtaining the certification. 1.1 IBM Certified Specialist - AIX HACMP This certification demonstrates a proficiency in the implementation skills required to plan, install, and configure AIX High Availability Cluster Mu
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1.2 Certification Exam Objectives The following objectives were used as a basis for what is required when the certification exam was developed. Some of these topics have been regrouped to provide better organization when discussed in this publication. Section 1 - Preinstallation The following items should be considered as part of the preinstallation plan: • Conduct a Planning Session. • Set customer expectations at the beginning of the planning session. • Gather customer's availabilit
