![]() So if you have chosen CPU Usage or a utilization type of trigger, you will be present with a 'Is Above' and a 'Is Below', however if you have chosen a state monitoring type trigger such as VM State you will be presented with an 'Is Equal To' or an 'Is Not Equal To' condition. Condition – This is the condition operator that must be met in order to trigger the alarm.Basically this what you would like to monitor (CPU Usage or VM State, etc). Trigger Type – This will determine your condition selection as well.Monitoring for specific conditions or state – The following will need to be specified here.This tab will change depending on the type of monitoring you have chosen on the general tab. Monitor for specific events occurring – VM Powered On, VM Powered Off, etc.Monitor for specific conditions or state, CPU Usage, Memory Usage, Power State.Also what you are going to monitor for, options are.Set your Alarm Type – Here you specify exactly what it is you want to monitor could be….Alarm Name and Description, and whether the alarm is enabled or disabled.You would not be able to modify the alarm with a VM selected. In the above example, to disable that alarm you would need to do so on the cluster level, as that is where it was created. Alarms can only be modified, disabled, or enabled on the object to which they were defined. Alarms are also inherited by child objects, meaning if you set an alarm to monitor VM Memory Usage on a cluster, all VMs within that cluster will be monitored. It is impossible to have a red to green or green to red. An alarm will trigger on a change of one of these levels which are sequential in nature, meaning the only time an alarm can trigger is during a Green to yellow, yellow to red, red to yellow, or yellow to green. (explained above).Īlarms have only three severity levels (Normal, Warning, Alert) displayed in a Green, Yellow, Red fashion. Actions – The operations to perform in response to a triggered alarm.Tolerance thresholds – Can provide additional restrictions on condition and state trigger thresholds that must be exceeded before the alarm is triggered.Triggers – Defines the actual event, condition or state change that will trigger the alarm as well as the notification severity.Alarm Type – Defines the type of object to be monitored.An alarm consists of the following elements So, alarms are essentially a notification or action taken in response to an event, a set of conditions or the state of an inventory object.
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