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Contents


About This Guide

Chapter 1: Overview of the Installation Process

Overview of the Installation Tasks   

Step 1: Installing HACMP on Server Nodes   

Step 2: Installing HACMP on Client Nodes   

Overview of the Cluster Creation Tasks   

Step 1: Creating an HACMP Cluster   

Step 2: Configuring an HACMP Cluster   

Overview of the Migration Tasks   

Where to Find Documentation   

Chapter 2: Creating Shared LVM Components

Prerequisites   

Logical Volumes   

Configuring HACMP to Use NFS Version 4   

Step 1: Configuring NFS and Changing to Version 4   

Step 2: Configuring the NFS Local Domain   

Step 3: Adding the NFS Directory to the Exports List   

Step 4: Adding the NFS for Mounting   

Step 5: Editing the /etc/filesystems file   

Step 6: Editing the /usr/es/sbin/cluster/etc/exports file   

Step 7: Removing Entries from /etc/exports   

Where You Go from Here   

Chapter 3: Upgrading an HACMP Cluster

Overview   

Prerequisites   

Terminology Overview   

Identifying Your Upgrade Path   

Supported Upgrade Paths   

Upgrading from Pre-5.1 Versions of HACMP   

Choosing Your Upgrade Scenario   

Planning for an Upgrade   

Updating the Current Cluster Configuration   

Checking Cluster Condition, Settings, and Worksheets   

Reviewing the Cluster and Node Version in the HACMP Configuration Database   

Checking Types of Networks   

Migrating Resource Groups Configured without Sites   

Upgrading Applications Configured Using a Smart Assist   

Ensuring Applications Use Proprietary Locking Mechanism   

Addressing Concurrent Access (AIX 5L) Migration Issues   

Priority Override Location and Persistence   

Notes on Upgrading from HACMP 5.1   

HACMP 5.4 Inter-Site Selective Fallover for Resource Group Recovery   

Upgrade Do’s and Don’ts   

Upgrade Do’s   

Upgrade Don’ts   

Checking That the Software Is Committed   

Performing a Rolling Migration to HACMP 5.4   

Step 1: Stop Cluster Services on a Node Hosting the Application   

Step 2: Install the HACMP 5.4 Software   

Step 3: Reboot the Node   

Step 4: Start Cluster Services on the Upgraded Node   

Step 5: Repeat Steps for Other Cluster Nodes   

Step 6: Verify the Upgraded Cluster Definition   

Upgrading to HACMP 5.4 Using a Snapshot   

Step 1: Creating a Snapshot   

Step 2: Stopping All Nodes   

Step 3: Removing the Existing Version of the HACMP Software   

Step 4: Installing the HACMP 5.4 Software   

Step 5: Converting and Applying a Saved Snapshot   

Step 6: Verifying the Upgraded Cluster Definition   

Upgrading to HACMP 5.4 on an Offline Cluster   

Applying a PTF   

Step 1: Stop Cluster Services on a Node Hosting the Application   

Step 2: Install the PTF Update   

Step 3: Start Cluster Services on the Upgraded Node   

Step 4: Repeat Steps for Other Cluster Nodes   

Step 5: Verify the Upgraded Cluster Definition   

Additional Migration Tasks   

Recompiling Clinfo Clients after Migrating to HACMP 5.4   

Using a Web-Based Interface for Configuration and Management   

Resetting HACMP Tunable Values   

Verifying the Success of Your Migration   

Verifying Software Levels Installed Using AIX 5L Commands   

Automatically Saved Files   

Verifying the Upgraded Cluster Definition   

Verifying All Cluster Filesets Have Migrated   

Testing HACMP on the Upgraded Cluster   

Running AIX 5L Commands on the Migrated Cluster   

Troubleshooting Your Migration   

Error: “config_too_long”   

Error: “cldare cannot be run”   

Recovering Your Previous Version of HACMP   

Recovering from a Conversion Failure   

Recovering Configuration Information   

Chapter 4: Installing HACMP on Server Nodes

Prerequisites   

Supported Hardware   

Disk Space Requirements   

Required Versions of AIX 5L and RSCT   

Security Fileset Requirements   

HAView Requirements   

Tivoli Requirements   

English and Japanese Message Catalogs   

Contents of the Installation Medium   

HACMP Installable Images   

HACMP Installation Choices   

Installing from an Installation Server   

Installing from a Hard Disk   

Copying HACMP Software to Hard Disk   

Installing HACMP from the Hard Disk   

Installing HACMP on an SP from the Hard Disk   

Installing from the Installation Medium    

Completing the Installation   

Verifying the Software Installation   

Addressing Problems during the Installation   

Cleaning up after an Unsuccessful Installation   

Resolving System ID Licensing Issues   

Removing the HACMP Software   

Installing and Configuring WebSMIT   

Planning for WebSMIT   

Prerequisites Tasks for Installing WebSMIT   

Steps for Installing and Configuring WebSMIT   

Upgrading from a Previous Configuration   

Where You Go from Here   

Chapter 5: Installing HACMP on Client Nodes

Prerequisites   

Overview   

Installing and Configuring HACMP on Client Systems   

Step 1: Installing the Base System Client Images   

Step 2: Copying the clhosts.client File onto Client Nodes   

Step 3: Editing the clinfo.rc Script   

Step 4: Updating the ARP Cache for Clients Not Using Clinfo   

Step 5: Rebooting the Clients   

Chapter 6: Configuring Installed Hardware

Configuring Network Interface Cards    

Ethernet, Token-Ring, and FDDI Interface Cards   

Completing the TCP/IP Network Interface Worksheets   

Configuring Point-to-Point Networks   

Configuring RS232 Serial Connections   

Configuring an RS232 Serial Connection in AIX 5L   

Testing the Serial Connection   

Defining the Serial Connection to HACMP   

Configuring an SP Switch   

Configuring for Asynchronous Transfer Mode (ATM)   

Support of Classic IP and LANE on the Same Interface Card   

Configuring ATM Classic IP   

Configuring Classic IP for HACMP Cluster Networks   

Testing the Configuration   

Configuring ATM ARP Servers for Use by HACMP Nodes   

Configuring ATM ARP Servers for Service Subnetworks   

Configuring ATM ARP Servers for Non-Service Subnetworks   

Configuring ATM ARP Clients on Cluster Nodes   

Testing Communication over the Network   

Defining the ATM Network to HACMP   

Configuring ATM LAN Emulation   

Defining the ATM LAN Emulation Network to HACMP   

Configuring Shared External Disk Devices   

Configuring Shared Fibre Channel Disks   

Configuring Shared SCSI Disks    

Configuring IBM SCSI Disk Arrays   

Configuring Target Mode SCSI Connections    

Configuring the Status of SCSI Adapters and Disks   

Configuring Target Mode SCSI Devices in AIX 5L   

Testing the Target Mode Connection   

Defining the Target Mode SCSI Connection to HACMP   

Configuring Target Mode SSA Connections   

Changing Node Numbers on Systems in SSA Loop   

Configuring Target Mode SSA Devices in AIX 5L   

Testing the Target Mode Connection   

Configuring Shared IBM SSA Disk Subsystems    

Defining the Target Mode SSA Connection to HACMP   

Installing and Configuring Shared Tape Drives   

Installing Shared SCSI Tape Drives   

Installing and Configuring Shared Fibre Tape Drives   

Configuring the Installation of a Shared Tape Drive   

Chapter 7: Defining Shared LVM Components

Overview   

Defining Shared LVM Components for Non-Concurrent Access   

Defining Shared LVM Components   

Creating a Shared Volume Group on Source Node   

Creating a Shared Filesystem on Source Node    

Renaming jfslogs and Logical Volumes on Source Node   

Adding Copies to Logical Volume on Source Node   

Testing a Filesystem   

Varying Off a Volume Group on the Source Node   

Collecting Information on Current Volume Group Configuration   

Importing a Volume Group onto Destination Nodes   

Changing a Volume Group’s Startup Status   

Varying Off Volume Group on Destination Nodes   

Defining LVM Components for Concurrent Access    

Creating a Concurrent Access Volume Group on a Source Node    

Chapter 8: Configuring AIX 5L for HACMP

I/O Considerations   

I/O Pacing   

Syncd Frequency   

Networking Considerations   

Checking User and Group IDs   

Configuring Network Options   

Changing routerevalidate Network Option   

Updating the /etc/hosts File and nameserver Configuration   

Setting up NIS-Managed Users to Create Crontabs   

Enabling the AIX 5L Automounter Daemon   

Planning HACMP File Collections   

Default HACMP File Collections   

Types of Error Notification   

AIX 5L Error Notification Facility    

HACMP Automatic Error Notification   

Error Notification Method Used for Volume Group Loss   

Emulation of Error Log Entries   

SP-Specific Considerations   

SP Switch Address Resolution Protocol (ARP)   

SP Switch Global Network Failure Detection and Action   

Chapter 9: Creating a Basic HACMP Cluster

Overview   

HACMP Cluster Definition   

Resource Group Policies   

Prerequisites   

TCP/IP Connectivity   

Copy of the Application   

Start Scripts and Stop Scripts   

Volume Groups   

Service IP Label/Address   

HACMP Software   

Planning a Two-Node Cluster   

Using the Two-Node Cluster Configuration Assistant   

User Privileges   

Existing Clusters   

Using the Standalone Assistant   

Using the SMIT Assistant   

Logging for the Two-Node Cluster Configuration Assistant   

Preventing Single Points of Failure   

Where You Go from Here   

Appendix A: Cluster Monitoring with Tivoli

Appendix B: OEM Disk, Volume Group, and Filesystems Accommodation

Appendix C: GPFS Cluster Configuration

Appendix D: HACMP and SNMP Utilities


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