Events Timeline Tab

The generated alerts, triggered symptoms, and change events for the current object over time appear on the Timeline tab. You use the timeline to identify common trends over time that are contributing to the status of objects in your environment.

How the Events Timeline Works

The timeline view includes alerts, symptoms, and events for the selected object for the last 6 hours. To view the data for a particular time, click the timeline in one of the three tiers. Then move your mouse to the left to see data from the past or to the right to move back to the present.

The view is limited to approximately 50 alerts, symptoms, and events. If your timeline includes more than this number, you can use the toolbar options to remove data from the timeline until it contains data that you find useful for your investigation.

Where You Find the Events Timeline

• From the left menu, click Environment, then select a group, custom data center, application, or inventory object. Click the object to display the object's Summary tab. Click the Events > Timeline tabs.
• In the menu, select Search and locate the object of interest. Click the object to display the object's Summary tab. Click the Events > Timeline tabs.

Table 1. View From Menu

Option	Description
Self	Shows or hides events for the current object.
Peer	Shows or hides events for objects like the impacted object.
Parents <options>	Shows or hides events for the parent, grandparent, and so on, objects of the current object.
Children <options>	Shows or hides the events for the descendants of the impacted object.

Table 2. Alert Filters

Option	Description
Criticality <options>	Limits the alerts to those matching the selected criticality level. If no criticality is selected, all alerts are displayed.
Status <options>	Limits the alerts in the chart to the canceled or active alerts. If no status is selected, all alerts are displayed. This option applies only to alerts, not to fault and change events. Change events and active faults are always displayed in the chart.
Alert Type <options>	Select one or more alert types. The types are assigned when the alert is defined. If no type is selected, all alerts are displayed.

Table 3. Event Filters

Option	Description
Dynamic Threshold Violation	VMware Aria Operations calculates dynamic thresholds for each metric that is collected for an object based on policies set.
Hard Threshold Violation	Events that represent a hard threshold violation, based on policies set. The system analyses the number of metrics that are violating their hard thresholds to determine trends.
Data Availability	Events reflecting datastore performance. Data availability is the capacity to provide data on demand to users and applications.
System Degradation	Events that reflect negative impacts on system performance.
Environment	Events indicating a change in the environment.
Change	Shows or hides the change events. Change events are changes to the object that might or might not result in an alert.
Notification	Routine notification events.
Fault	Events indicating any observed behavior that differs from the expected one.

Table 4. Date Controls, Data Values, Events Chart

Option	Description
Date Controls	Limits the data in the chart to the selected time frame.
Data Values	When you click a data point, the event is highlighted in the event data grid.
Events chart	Shows the events and alerts over time by criticality, and other data options you select in the toolbar.