Depending on the monitor thresholds, the monitor status change rule, and the actual measurement or check results, each monitor can have the following statuses: OK (green), Warning (orange), Error (red), or No data (grey).
The statuses of monitors are used to calculate component status, with the worst status among all monitors being the one escalated to the component level.
Accordingly, the worst status among all components defines the infrastructure status.
The monitor status change rule allows you to fine-tune conditions for monitor status change. The rule defines how many consecutive measurements X out of consecutive measurements Y should go beyond the threshold or return within its limits in order for the monitor status to change.
Note: For monitors with two or more public agents this rule applies only if at least two agents exceed the threshold or return within its limits within the same period of time.
To set status rules, go to the New monitor dialog or the Edit Monitor dialog, and then select the Status Rule tab.
For example, for the Ping Monitor, you can set two out of two consecutive measurements. This means that if two out of 2 two measurements exceed the threshold, the status will change. If only one out of two measurements exceed the threshold, the status does not change.