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Managing Serviceguard Fifteenth Edition

Chapter 8 Troubleshooting Your Cluster

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Table of Contents

Testing Cluster Operation

Start the Cluster using Serviceguard Manager
Testing the Package Manager
Testing the Cluster Manager
Testing the Network Manager

Monitoring Hardware

Using Event Monitoring Service
Using EMS (Event Monitoring Service) Hardware Monitors
Hardware Monitors and Persistence Requests
Using HP ISEE (HP Instant Support Enterprise Edition)

Replacing Disks

Replacing a Faulty Array Mechanism
Replacing a Faulty Mechanism in an HA Enclosure
Replacing a Lock Disk
Replacing a Lock LUN
On-line Hardware Maintenance with In-line SCSI Terminator

Replacing I/O Cards

Replacing SCSI Host Bus Adapters

Replacing LAN or Fibre Channel Cards

Off-Line Replacement
On-Line Replacement
After Replacing the Card

Replacing a Failed Quorum Server System

Troubleshooting Approaches

Reviewing Package IP Addresses
Reviewing the System Log File
Reviewing Object Manager Log Files
Reviewing Serviceguard Manager Log Files
Reviewing the System Multi-node Package Files
Reviewing Configuration Files
Reviewing the Package Control Script
Using the cmcheckconf Command
Using the cmscancl Command
Using the cmviewconf Command
Reviewing the LAN Configuration

Solving Problems

Serviceguard Command Hangs
Cluster Re-formations
System Administration Errors
Problems with Cluster File System (CFS)
Problems with VxVM Disk Groups
Package Movement Errors
Node and Network Failures
Troubleshooting Quorum Server

This chapter describes how to verify cluster operation, how to review cluster status, how to add and replace hardware, and how to solve some typical cluster problems. Topics are as follows:

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