Linux FailSafe™ Administrator's Guide
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Chapter 1. Overview of the Linux FailSafe System

Table of Contents
1.1. High Availability and Linux FailSafe
1.2. Concepts
1.2.1. Cluster Node (or Node)
1.2.2. Pool
1.2.3. Cluster
1.2.4. Node Membership
1.2.5. Process Membership
1.2.6. Resource
1.2.7. Resource Type
1.2.8. Resource Name
1.2.9. Resource Group
1.2.10. Resource Dependency List
1.2.11. Resource Type Dependency List
1.2.12. Failover
1.2.13. Failover Policy
1.2.14. Failover Domain
1.2.15. Failover Attribute
1.2.16. Failover Scripts
1.2.17. Action Scripts
1.3. Additional Linux FailSafe Features
1.3.1. Dynamic Management
1.3.2. Fine Grain Failover
1.3.3. Local Restarts
1.4. Linux FailSafe Administration
1.5. Hardware Components of a Linux FailSafe Cluster
1.6. Linux FailSafe Disk Connections
1.7. Linux FailSafe Supported Configurations
1.8. Highly Available Resources
1.8.1. Nodes
1.8.2. Network Interfaces and IP Addresses
1.8.3. Disks
1.9. Highly Available Applications
1.10. Failover and Recovery Processes
1.11. Overview of Configuring and Testing a New Linux FailSafe Cluster
1.12. Linux FailSafe System Software
1.12.1. Layers
1.12.2. Communication Paths
1.12.3. Conditions Under Which Action Scripts are Executed
1.12.4. When Does FailSafe Execute Action and Failover Scripts
1.12.5. Components

This chapter provides an overview of the components and operation of the Linux FailSafe system. It contains these major sections:

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Conventions Used in This Guide High Availability and Linux FailSafe