The "Chapter 1 Introduction" describes the components necessary for configuring applications for high availability. It is extremely important that you define applications and the resources that are used by them. Resources are entities like disks, file systems, processes, IP addresses, and so forth.
This definition also needs to include the following information:
How the applications and their resources are related to each other
What scripts bring resources online and offline
Which detectors monitor the state of which resources
For example, if a node should fail to be available, the node that is to take its place must have been defined beforehand so that the applications depending on this node are able to continue operating with minimal interruption. Once the necessary information is defined, you can then set up an RMS configuration. A configuration of this magnitude, however, requires a great deal of expert knowledge.
The RMS Wizards are tools that allow you to set up an RMS configuration in a way that is simple, flexible, and quality-tested. Furthermore, these tools conform to a well-documented, standard design. To configure RMS with the wizards, you supply information about the applications using a menu-driven interface. The wizards use this information to set up a complete RMS configuration.
The following sections describe these wizards and the way they are used to configure high availability from a general point of view.
