The cluster resource management layer
The cluster resource management layer is the top layer of the cluster stack. It makes sure that the services your cluster provides are up-and-running at all times.
The features of the cluster resource management layer are as follows:
- Starting cluster resources
- Stopping cluster resources
- Monitoring cluster resources
- Migrating cluster resources
- Grouping cluster resources
- Location constraints
The main objective of the cluster resource management layer is to relocate cluster resources and services to operational cluster members when there is a failure in the cluster. In order for the cluster resource management layer to manage cluster services, it must be able to access the applications providing the cluster service. The services and applications the cluster resource manager provides are called cluster resources. These resources can be anything such as an IP address, web server, database server, or any other application available on the operating system. The cluster...
