Event noise reduction indicator for prioritized triage and remediation
Event noise is the term used to describe the hundreds of hourly and daily notifications and alarms (eg: CPU utilization, memory utilization, end user response time) delivered by monitoring systems to IT Ops teams to show the health and performance of infrastructure and applications across their IT environment. Event noise reduction involves reducing the event storm by combining multiple matching events into a single aggregated event. Event noise reduction enables you to perform prioritized triage and remediation.
You can view the noise reduction value in percentage and its trend on the Overview page as shown in the following example:
Event noise reduction computation
The following computation is used to derive the noise reduction value in percentage.
Example
Consider the following example to understand how the noise reduction value is computed:
Total number of primary events in the system (primaryEvents) = 4
Total number of secondary events in the system (secondaryEvents) = 20
Total number of other events in the system (otherEvents) = 40
Total number of events in the system (totalEvents = primaryEvents + secondaryEvents + otherEvents) = 64
Noise reduction in percentage = ((20-4)/64)*100 = 25%
Comments
What are "other events"? How would an event be categorized as secondary vs other ?
Hello Alexis Bernard,
Can you refer to the latest version of the page that contains additional explanation added in recent times? See the link below. Please do let us know.
Event noise reduction indicator for prioritized triage and remediation
Thank you. For some reason that info is not yet available in the "current release" page of the doc but shows up in 22.4 version
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