Performance events are incidents or configuration changes related to workload performance on a cluster. They help you identify workloads with slow response times and cluster configuration changes that might have caused or contributed to the slow response times.
When Performance Manager detects multiple occurrences of the same event condition for the same cluster component, it treats all occurrences as a single event, not as separate events.
Types of performance events
Performance Manager can detect the following types of performance events:
- Incidents
- Performance issues that are the result of failures or errors in an IT infrastructure. The cause of incidents might be a simple issue that corrects itself over a period of time or can be addressed with a repair or configuration change. In Performance Manager, an incident indicates workloads on a system running clustered Data ONTAP that are slow due to other workloads with high usage of shared cluster components. If the response time of the impacted workloads does not return to normal levels, you might need to take corrective action to resolve the incident.
- Changes
- The addition, modification, or removal of storage objects in an IT infrastructure. In Performance Manager, a change is an addition, modification, or deletion of a logical or physical storage object in a system running clustered Data ONTAP. A change that impacts the performance of one or more workloads might be a contributor to an incident.