Linux FailSafe™   Programmer's Guide
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Chapter 1. Introduction to Writing Application Scripts

Table of Contents
1.1. Concepts
1.1.1. Cluster Node (or Node)
1.1.2. Pool
1.1.3. Cluster
1.1.4. Node Membership
1.1.5. Process Membership
1.1.6. Resource
1.1.7. Resource Type
1.1.8. Resource Name
1.1.9. Resource Group
1.1.10. Resource Dependency List
1.1.11. Resource Type Dependency List
1.1.12. Failover
1.1.13. Failover Policy
1.1.14. Failover Domain
1.1.15. Failover Attribute
1.1.16. Failover Scripts
1.1.17. Action Scripts
1.2. Highly Available Services Included with Linux FailSafe
1.3. Plug-Ins
1.4. Characteristics that Permit an Application to be Highly Available
1.5. Overview of the Programming Steps

Linux FailSafe provides several highly available services for a two–node cluster. These services are monitored by the Linux FailSafe software. You can create additional services that are highly available by using the instructions in this guide.

This chapter provides an introduction to Linux FailSafe programming. The sections are as follows:

For an overview of the software layers, communication paths, and cluster configuration database, see the Linux FailSafe Administrator's Guide.

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Conventions Used in This Guide Concepts