cdm reboot alarm while the server is under maintenance

Document ID : KB000121603
Last Modified Date : 28/11/2018
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Issue:
Reboot alarms are being received for servers that are in maintenance mode.
Cause:
The reboot alarm has severity "Informational"
Informational messages are not prevented during maintenance mode 

"The maintenance_mode probe sets user specified maintenance windows for devices. During these maintenance windows, alarms with the following severity levels do not display in USM: 

Critical 
Major 
Minor 
Warning 

Informational and clear alarm messages are still displayed during a maintenance window." 
Resolution:
Change the severity of the reboot alarm to warning if you want them to be suppressed by maintenance_mode