Using nas to exclude specific alarms

Products

• DX Unified Infrastructure Management (Nimsoft / UIM)

Issue/Introduction

DX Unified Infrastructure Management (UIM) allows for the suppression of specific alarms before they are generated in the alarm console. This is useful when a server is undergoing maintenance or when a probe generates undesirable alerts that cannot be disabled via local configuration.

For example, a backup server is undergoing maintenance, and the disks/filesystems will be unavailable for a period of time.

Or, an alarm is automatically generated by a probe and cannot be disabled through configuration, but the alarm is undesirable/unneeded.

Environment

DX Unified Infrastructutre Management - All Versions (20.4, 23.4, all CU versions)
NAS probe (all versions)

Resolution

If the alarm is truly not needed for any purpose, but cannot be disabled at the probe configuration level, use a nas pre-processing rule to exclude the alarm so it never gets created. 

Set the message string to look for the key words in the alarm(s) to exclude or use any of the other matching fields to isolate the specific alarm(s) to exclude. 

For example, the below screenshot shows one method to block "401 unauthorized" alarms from the url_response probe, using the regex format:  /.key word./ to search for the correct string.

You can use F2 to test your message string against the actual alarm

Use additional fields like "NMS Probe Name" to match more specifically as needed.

Note:  fields are case-sensitive.