Concept
Alarm Handling Issues
When an alarm is triggered it appears in the alarm list. You can acknowledge, disable, or hide alarms in the alarm list. An acknowledged alarm disappears from the alarm list when it has been reset to normal state.
When the alarm database is lost after an upgrade or is corrupt after a SmartStruxure server crash, all alarms are re-evaluated. The alarms that are still active are resent to the alarm database. However, the information that an alarm has been acknowledged, disabled, or hidden is lost and you have repeat the operation you performed on the alarm before the data loss.
When an alarm has been triggered and reset to normal state without having been acknowledged, the alarm remains in the alarm list until it is acknowledged. If the alarm is lost, an alarm refresh does not make the alarm reappear in the alarm list. The alarm is reset and has no alarm state to send.
Most system information alarms are only messages. These alarms cannot be in an alarm state, thus, an alarm refresh does not make the system information alarms reappear in the alarm list.
Alarm States
Alarms Pane and Alarm View
Enterprise Server System Upgrade Workflow