This guide is intended for administrators who need to set up, configure, and maintain clusters with SUSE® Linux Enterprise High Availability. For quick and efficient configuration and administration, the product includes both a graphical user interface and a command line interface (CLI). For performing key tasks, both approaches are covered in this guide. Thus, you can choose the appropriate tool that matches your needs.
- About This Guide
- I Installation and Setup
- II Configuration and Administration
- 5 Configuration and Administration Basics
- 6 Configuring Cluster Resources
- 6.1 Types of Resources
- 6.2 Supported Resource Agent Classes
- 6.3 Timeout Values
- 6.4 Creating Primitive Resources
- 6.5 Creating Resource Groups
- 6.6 Creating Clone Resources
- 6.7 Creating Promotable Clones (Multi-state Resources)
- 6.8 Creating Resource Templates
- 6.9 Creating STONITH Resources
- 6.10 Configuring Resource Monitoring
- 6.11 Loading Resources from a File
- 6.12 Resource Options (Meta Attributes)
- 6.13 Instance Attributes (Parameters)
- 6.14 Resource Operations
- 7 Configuring Resource Constraints
- 7.1 Types of Constraints
- 7.2 Scores and Infinity
- 7.3 Resource Templates and Constraints
- 7.4 Adding Location Constraints
- 7.5 Adding Colocation Constraints
- 7.6 Adding Order Constraints
- 7.7 Using Resource Sets to Define Constraints
- 7.8 Specifying Resource Failover Nodes
- 7.9 Specifying Resource Failback Nodes (Resource Stickiness)
- 7.10 Placing Resources Based on Their Load Impact
- 7.11 For More Information
- 8 Managing Cluster Resources
- 9 Managing Services on Remote Hosts
- 10 Adding or Modifying Resource Agents
- 11 Monitoring Clusters
- 12 Fencing and STONITH
- 13 Storage Protection and SBD
- 13.1 Conceptual Overview
- 13.2 Overview of Manually Setting Up SBD
- 13.3 Requirements
- 13.4 Number of SBD Devices
- 13.5 Calculation of Timeouts
- 13.6 Setting Up the Watchdog
- 13.7 Setting Up SBD with Devices
- 13.8 Setting Up Diskless SBD
- 13.9 Testing SBD and Fencing
- 13.10 Additional Mechanisms for Storage Protection
- 13.11 For More Information
- 14 QDevice and QNetd
- 15 Access Control Lists
- 16 Network Device Bonding
- 17 Load Balancing
- 18 Geo Clusters (Multi-Site Clusters)
- III Storage and Data Replication
- IV Maintenance and Upgrade
- 27 Executing Maintenance Tasks
- 27.1 Preparing and Finishing Maintenance Work
- 27.2 Different Options for Maintenance Tasks
- 27.3 Putting the Cluster into Maintenance Mode
- 27.4 Putting a Node into Maintenance Mode
- 27.5 Putting a Node into Standby Mode
- 27.6 Stopping the Cluster Services on a Node
- 27.7 Putting a Resource into Maintenance Mode
- 27.8 Putting a Resource into Unmanaged Mode
- 27.9 Rebooting a Cluster Node While in Maintenance Mode
- 28 Upgrading Your Cluster and Updating Software Packages
- 27 Executing Maintenance Tasks
- V Appendix
- Glossary
- E GNU licenses
- 1.1 Three-Server Cluster
- 1.2 Three-Server Cluster after One Server Fails
- 1.3 Typical Fibre Channel Cluster Configuration
- 1.4 Typical iSCSI Cluster Configuration
- 1.5 Typical Cluster Configuration Without Shared Storage
- 1.6 Architecture
- 4.1 YaST Cluster—Multicast Configuration
- 4.2 YaST Cluster—Unicast Configuration
- 4.3 YaST Cluster—Security
- 4.4 YaST Cluster—
conntrackd - 4.5 YaST Cluster—Services
- 4.6 YaST —Csync2
- 5.1 Hawk2—Cluster Configuration
- 5.2 Hawk2—Wizard for Apache Web Server
- 5.3 Hawk2 Batch Mode Activated
- 5.4 Hawk2 Batch Mode—Injected Invents and Configuration Changes
- 6.1 Hawk2—Primitive Resource
- 6.2 Group Resource
- 6.3 Hawk2—Resource Group
- 6.4 Hawk2—Clone Resource
- 6.5 Hawk2—Multi-state Resource
- 6.6 Hawk2—STONITH Resource
- 6.7 Hawk2—Resource Details
- 7.1 Hawk2—Location Constraint
- 7.2 Hawk2—Colocation Constraint
- 7.3 Hawk2—Order Constraint
- 7.4 Hawk2—Two Resource Sets in a Colocation Constraint
- 8.1 Hawk2—Editing A Primitive Resource
- 8.2 Hawk2—Tag
- 11.1 Hawk2—Cluster Status
- 11.2 Hawk2 Dashboard with One Cluster Site (
amsterdam) - 11.3 Hawk2—History Explorer Main View
- 17.1 YaST IP Load Balancing—Global Parameters
- 17.2 YaST IP Load Balancing—Virtual Services
- 22.1 Position of DRBD within Linux
- 22.2 Resource Configuration
- 22.3 Resource Stacking
- 22.4 Showing a Good Connection by
drbdmon - 22.5 Showing a Bad Connection by
drbdmon - 23.1 Setup of a Shared Disk with Cluster LVM
- 25.1 Structure of a CTDB Cluster
- 2.1 System Roles and Installed Patterns
- 5.1 Common Parameters
- 6.1 Resource Operation Properties
- 10.1 Failure Recovery Types
- 10.2 OCF Return Codes
- 12.1 Classes of fencing
- 13.1 Commonly used watchdog drivers
- 15.1 Operator Role—Access Types and XPath Expressions
- 20.1 OCFS2 Utilities
- 20.2 Important OCFS2 Parameters
- 21.1 GFS2 Utilities
- 21.2 Important GFS2 Parameters
- 5.1 Excerpt of Corosync Configuration for a Two-Node Cluster
- 5.2 Excerpt of Corosync Configuration for an N-Node Cluster
- 5.3 A Simple crmsh Shell Script
- 6.1 Resource Group for a Web Server
- 7.1 A Resource Set for Location Constraints
- 7.2 A Chain of Colocated Resources
- 7.3 A Chain of Ordered Resources
- 7.4 A Chain of Ordered Resources Expressed as Resource Set
- 7.5 Migration Threshold—Process Flow
- 9.1 Configuring Resources for Monitoring Plug-ins
- 12.1 Configuration of an IBM RSA Lights-out Device
- 12.2 Configuration of a UPS Fencing Device
- 12.3 Configuration of a Kdump Device
- 13.1 Formula for Timeout Calculation
- 14.1 Status of QDevice
- 14.2 Status of QNetd Server
- 15.1 Excerpt of a Cluster Configuration in XML
- 17.1 Simple ldirectord Configuration
- 22.1 Configuration of a Three-Node Stacked DRBD Resource
- 26.1 Using an NFS Server to Store the File Backup
- 26.2 Backing up Btrfs subvolumes with
tar - 26.3 Using Third-Party Backup Tools Like EMC NetWorker
- 26.4 Backing up multipath devices
- 26.5 Booting your system with UEFI
- 26.6 Creating a recovery system with a basic
tarbackup - 26.7 Creating a recovery system with a third-party backup
- A.1 Stopped Resources
Copyright © 2006–2024 SUSE LLC and contributors. All rights reserved.
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or (at your option) version 1.3; with the Invariant Section being this copyright notice and license. A copy of the license version 1.2 is included in the section entitled “GNU Free Documentation License”.
For SUSE trademarks, see https://www.suse.com/company/legal/. All third-party trademarks are the property of their respective owners. Trademark symbols (®, ™ etc.) denote trademarks of SUSE and its affiliates. Asterisks (*) denote third-party trademarks.
All information found in this book has been compiled with utmost attention to detail. However, this does not guarantee complete accuracy. Neither SUSE LLC, its affiliates, the authors nor the translators shall be held liable for possible errors or the consequences thereof.