IBM Tivoli Monitoring > Version 6.3 Fix Pack 2 > Installation Guides > High Availability Guide for Distributed Systems > The clustering of IBM Tivoli Monitoring components
IBM Tivoli Monitoring, Version 6.3 Fix Pack 2
Clustering overview
This section uses clustering techniques to provide an overview of high availability. In addition to a brief overview of clustering, this section includes requirements for preparing to create clusters with Tivoli Monitoring components; it also describes the supported IBM Tivoli Monitoring cluster configurations, provides an overview of the setup steps, and describes the expected behavior of the components running in a clustered environment.
Detailed instructions on how to set up Tivoli Monitoring components on different cluster managers are provided in the following chapters.
Review the following concepts to enhance your understanding of clustering technology:
- Cluster
- A cluster is a group of individual computer systems working together to provide increased application availability.
- Failback
- Failback is the process of moving resources back to their original node after the failed node comes back online.
- Failover
- Failover is the process of taking resource groups offline on one node and bringing them back on another node. Resource dependencies are respected.
- Node
- A node is a computer system that is a member of a cluster.
- Resource
- A resource is a physical or logical entity that can be managed by a cluster (that is, brought online, taken offline, or moved between nodes).
- Resource group
- Resource groups are collections of resources that are managed as a single unit and hosted on one node at any point in time.
Although clusters can be used in configurations other than basic failover (for example, load sharing and balancing), the current IBM Tivoli Monitoring design does not support multiple, concurrent instances of the monitoring components. For this reason, this document addresses only IBM Tivoli Monitoring component failover.
Parent topic:
The clustering of IBM Tivoli Monitoring components