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Contents


About This Guide

Chapter 1: HACMP for Linux Cluster Overview

Overview   

Related Cluster Information   

Cluster Terminology   

Sample Configuration with a Diagram   

Node and Network Failure Scenarios   

Node Failure   

Network Failure   

Network Interface Failure   

Where You Go from Here   

Chapter 2: Planning and Installing HACMP for Linux

Cluster Hardware   

Hardware for Cluster Nodes   

Hardware for Cluster Networks   

Hardware for Cluster Storage   

Cluster Software   

Planning the HACMP Configuration   

Planning Applications   

Planning HACMP Nodes   

Planning for Resource Groups in an HACMP Cluster   

Resource Group Policies: Overview   

Planning IP Networks and Network Interfaces   

Installing HACMP for Linux   

Software Prerequisites for Installation   

Contents of the Installation Media   

Installation Process Overview   

Installing HACMP for Linux RPMs   

Installing and Configuring WebSMIT   

Verifying the Installed Cluster Software   

Entries Added to System Directories after Installation   

Addressing Problems during Installation   

Security Considerations   

WebSMIT Security   

Where You Go from Here   

Chapter 3: Common Task Summary

Features   

Configuration Requirements   

Understanding Cluster Network Requirements and Heartbeating   

Launching the WebSMIT Interface   

Starting WebSMIT   

WebSMIT Tasks Overview   

Tasks for Configuring a Basic Cluster   

Defining a Cluster Name   

Adding Nodes and Establishing Communication Paths   

Configuring Serial Networks for Heartbeating   

Adding IP-Based Networks   

Configuring Communication Interfaces/Devices to HACMP   

Adding Persistent IP Labels for Cluster Administration Purposes   

Verifying the Networks and Network Interfaces Configuration   

Configuring Resources to Make Highly Available   

Configuring Service IP Labels   

Configuring HACMP Application Servers   

Configuring Application Servers   

Configuring Application Monitors   

Including Resources into Resource Groups   

Synchronizing the HACMP Cluster Configuration   

Displaying the HACMP Cluster Configuration   

Viewing the Cluster Status   

System Management (C-SPOC) Tasks   

Starting HACMP Cluster Services   

Stopping HACMP Cluster Services   

Managing Resource Groups and Applications   

Viewing and Managing Logs   

List of Reserved Words   

Where You Go from Here   

Chapter 4: Other Cluster Configuration Tasks

Identifying Service Adapter Failure for Two-Node Clusters: netmon.cf   

Creating the netmon.cf File   

Choosing IP Addresses for the netmon.cf File   

Resetting Cluster Tunables   

Resetting HACMP Tunable Values using the Command Line   

Listing Tunable Values   

Understanding How HACMP Resets Cluster Tunables   

Where You Go from Here   

Chapter 5: Monitoring and Troubleshooting a Cluster

Problem Determination Tools   

Viewing Cluster Information (clstat) in WebSMIT   

Useful Commands   

Logging Messages   

Collecting Cluster Log Files for Problem Reporting   

Solving Common Problems with Networks and Applications   

Identifying Causes of Unexpected Network and Network Interface Failures   

Troubleshooting an Unsuccessful Application Fallover to Another Node   

Troubleshooting the Serial Connection   

Appendix A: Command Reference and the clinfo Utility

Glossary


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