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Abnormality Index Monitors depict the overall health of a group of monitor instances, based on the number of abnormalities generated for the monitors. This monitor collects all abnormal events that occurred for the monitor instances in a group, and pools them to reflect the overall health of the group.

For example, to view a consolidated health report of five monitor instances of different monitor types, add these five instances to a group and add an Abnormality Index Monitor instance to the group. This monitor instance then reports on the abnormality level of the group, which serves as an early warning system.

Group health is considered good when the reported abnormality index is low; as the group health deteriorates, the reported abnormality index increases. An abnormality index of 0% means the monitored group is working as expected, whereas a value moving towards 100% means that the health of the monitored group is deteriorating.

The procedure to view and graph Abnormality Index Monitor output is the same as other Infrastructure Management monitors. However, there are differences as follows:

  • Only a single instance of this monitor can be created per group. 
  • Abnormality Index Monitor is available only on the local agent. 
  • Abnormality Index Monitor is listed in the group matrix under the corresponding group. 
  • Abnormality Index Monitor reports are based on abnormal events. Abnormal events are based on baseline violations. For example, if a monitor reports zero availability, this might not be considered for Abnormality Index calculations even though an event might be generated in Infrastructure Management.