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An alarm definition for a service, server, or log data is evaluated over the interval specified in the alarm expression. The alarm definition is re-evaluated in each subsequent interval. The following alarm statuses are distinguished:
Alarm. The alarm expression has evaluated to
true. An alarm has been triggered for the cloud
resource.
OK. The alarm expression has evaluated to
false. There is no need to trigger an alarm.
Undetermined. No metrics data has been received within
the defined interval.
As soon as you have defined an alarm for a cloud resource, there is status information displayed for it on the Overview page:
The color of the boxes in the three sections indicates the status:
A green box for a service or server indicates that it is up and running. A green box for a log path indicates that a defined threshold for errors or warnings, for example, has not yet been reached or exceeded. There are alarms defined for the services, servers, or log paths, but no alarms have been triggered.
A red box for a service, server, or log path indicates that there is a severe problem that needs to be checked. One or multiple alarms defined for a service, a server, or log data have been triggered.
A yellow box indicates a problem. One or multiple alarms have already been triggered, yet, the severity of these alarms is low.
A gray box indicates that alarms have been defined. Yet, metrics data has not been received.
The status information on the Overview page results from one or multiple alarms that have been defined for the corresponding resource. If multiple alarms are defined, the severity of the individual alarms controls the status color.
You can click a resource on the Overview page to display details on the related alarms. The details include the status of each alarm and the expression that is evaluated. For each alarm, you can drill down on the alarm history. To narrow down the problem, the history presents detailed information on the status transitions.