Chapter 5 _______________________________________________________________ Diagnostics
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- You may not have the rights to acknowledge all events 
(notifications) that you see.
- The system marks the selected event as acknowledged and stores 
the event in a history file, together with the time of 
acknowledgement. 
- If the sound alarm starts again, there are new unacknowledged 
events (If sound alarm is configured). 
5. Take the appropriate action to solve the problem. For information on 
how to solve the problems, see the following sections: 
- Technical events: Dealing with Technical Event Messages 
(TECH) on page 78. 
- Messages Related to CDU(s): Dealing with Messages Related to 
CDU(s) on page 82. 
- Operational events: Dealing with Operational Event Messages 
(OPER) on page 85. 
- Message notifications: Dealing with Message Notifications 
(MESG) on page 86.
Viewing Stored Events
All statuses of a single event are stored in history files, which you can view 
with the ASCII Log View application. In the history files, the entire event 
chain can be seen: the time the event was first shown in the Events panel 
in the Diagnostics application, the time it was acknowledged, and the time 
the problem causing it was fixed. 
When the problem has been fixed or the condition causing the event has 
passed, the event status changes to OVER and the event message 
disappears from the Events panel. 
The OVER status is shown only in the history files, which you can view 
with the ASCII Log View application. You can use the history files to 
track, for example, how long it took for a problem to be solved.