Hi friend.
By default, 20,000 historical alarms and masked alarms can be displayed. When the number of alarms exceeds the upper limit, the first 20,000 alarms are displayed based on the filter criteria and sorting. If you want to query other alarms, you can modify the filter criteria and sort the alarms.
You can create an alarm masking rule to mask alarms that you are not concerned about. The masked alarms will be displayed on the Masked Alarms page or discarded.
Masked alarms are not deleted from the masked alarm list when the corresponding masking rules are disabled or deleted.
You can only monitor and view alarms of authorized MOs.
A maximum of 30 Historical Alarms pages can be opened by default. A maximum of five Masked Alarms pages can be opened by default.
For details, click here to learn more.
Thanks.