What You Can Do

297

What You Must Keep in Mind

298

Example: Adding a Heartbeat LAN

299

Example: Deleting a Subnet Used by a Package

300

Removing a LAN or VLAN Interface from a Node

300

Changing the LVM Configuration while the Cluster is Running

301

Changing the VxVM or CVM Storage Configuration

301

Changing MAX_CONFIGURED_PACKAGES

302

Configuring a Legacy Package

302

Creating the Legacy Package Configuration

302

Configuring a Package in Stages

303

Editing the Package Configuration File

303

Creating the Package Control Script

305

Customizing the Package Control Script

306

Adding Customer Defined Functions to the Package Control Script

307

Adding Serviceguard Commands in Customer Defined Functions

307

Support for Additional Products

307

Verifying the Package Configuration

308

Distributing the Configuration

308

Distributing the Configuration And Control Script with Serviceguard Manager

308

Copying Package Control Scripts with HP-UX commands

308

Distributing the Binary Cluster Configuration File with HP-UX Commands

309

Configuring Cross-Subnet Failover

309

Configuring node_name

309

Configuring monitored_subnet_access

310

Creating Subnet-Specific Package Control Scripts

310

Control-script entries for nodeA and nodeB

310

Control-script entries for nodeC and nodeD

310

Reconfiguring a Package

310

Migrating a Legacy Package to a Modular Package

311

Reconfiguring a Package on a Running Cluster

311

Renaming or Replacing an External Script Used by a Running Package

312

Reconfiguring a Package on a Halted Cluster

312

Adding a Package to a Running Cluster

312

Deleting a Package from a Running Cluster

313

Resetting the Service Restart Counter

314

Allowable Package States During Reconfiguration

314

Changes that Will Trigger Warnings

319

Responding to Cluster Events

319

Single-Node Operation

320

Disabling Serviceguard

320

Removing Serviceguard from a System

320

8 Troubleshooting Your Cluster

321

Testing Cluster Operation

321

Start the Cluster using Serviceguard Manager

321

Testing the Package Manager

321

Testing the Cluster Manager

322

Testing the Network Manager

322

Monitoring Hardware

322

Using System Fault Management Service

323

Using Event Monitoring Service

323

Using EMS (Event Monitoring Service) Hardware Monitors

323

Hardware Monitors and Persistence Requests

323

Using HP ISEE (HP Instant Support Enterprise Edition)

324

Contents 13

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HP Serviceguard manual Troubleshooting Your Cluster 321