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Red Hat Enterprise Linux 5

Configuration Example - Fence Devices

Configuring Fence Devices in a Red Hat Cluster

Edition 2

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Abstract
This book describes a procedure for configuring fence devices in a Red Hat Cluster using Conga.

Introduction
1. About This Guide
2. Audience
3. Software Versions
4. Related Documentation
5. We Need Feedback!
6. Document Conventions
6.1. Typographic Conventions
6.2. Pull-quote Conventions
6.3. Notes and Warnings
1. Configuring Fence Devices in a Red Hat Cluster
2. Configuring an APC Switch as a Fence Device
2.1. APC Fence Device Prerequisite Configuration
2.2. APC Fence Device Components to Configure
2.3. APC Fence Device Configuration Procedure
2.4. Cluster Configuration File with APC Fence Device
2.5. Testing the APC Fence Device Configuration
3. Configuring IPMI Management Boards as Fencing Devices
3.1. IPMI Fence Device Prerequisite Configuration
3.2. IPMI Fence Device Components to Configure
3.3. IPMI Fence Device Configuration Procedure
3.4. Cluster Configuration File with IPMI Fence Device
3.5. Testing the IPMI Fence Device Configuration
4. Configuring HP ILO Management Boards as Fencing Devices
4.1. HP iLO Fence Device Prerequisite Configuration
4.2. HP iLO Fence Device Components to Configure
4.3. HP iLO Fence Device Configuration Procedure
4.4. Cluster Configuration File with HP iLO Fence Device
4.5. Testing the HP iLO Fence Device Configuration
5. Configuring Fencing with Dual Power Supplies
5.1. Dual Power Fencing Prerequisite Configuration
5.2. Fence Device Components to Configure
5.3. Dual Power Fencing Configuration Procedure
5.4. Cluster Configuration File with Dual Power Supply Fencing
5.5. Testing the Dual Power Fence Device Configuration
6. Configuring a Backup Fencing Method
6.1. Backup Fencing Prerequisite Configuration
6.2. Fence Device Components to Configure
6.3. Backup Fencing Configuration Procedure
6.3.1. Configuring the APC switches as shared fence devices
6.3.2. Configuring Fencing on the First Cluster Node
6.3.3. Configuring Fencing on the Remaining Cluster Nodes
6.4. Cluster Configuration File for Backup Fence Method
6.5. Testing the Backup Fence Device Configuration
7. Configuring Fencing using SCSI Persistent Reservations
7.1. Technical Overview of SCSI Persistent Reservations
7.1.1. SCSI Registrations
7.1.2. SCSI Technical Overview
7.1.3. SCSI Fencing with Persistent Reservations
7.2. SCSI Fencing Requirements and Limitations
7.3. SCSI Fencing Example Configuration
7.4. SCSI Fencing Prerequisite Configuration
7.5. SCSI Fence Device Components to Configure
7.6. SCSI Fence Device Configuration Procedure
7.7. Cluster Configuration File with SCSI Fence Device
7.8. Testing the Configuration
8. Troubleshooting
9. The GFS Withdraw Function
A. Revision History
Index