A cluster is a group of computers that work together to run a common set of applications; the client and the application see only a single system. The computers in the cluster are connected by cables and programmatically connected by cluster software.
If one of the nodes in a cluster is out of service due to failure or maintenance, another node in the cluster becomes available to provide service. This process is called failover.
HP Operations agents are cluster-aware, which means that the agent recognizes that it is running on a cluster system. (In a cluster, the agent is installed on each of the nodes in the cluster.) The agent supports switching application monitoring packages between the physical nodes to monitor the application where it really runs.
For a list of platforms and versions for which HP Operations Manager for Windows cluster-awareness support is available, see the support matrix on the Software Support Online web site.
See the related topics for details on how to monitor a cluster resource.
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