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CentOS High Availability by Mitja Resman

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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. ...

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