Threshold monitoring alerts using percent of baseline are trigging outside threshold

Products

• DX NetOps
• CA Performance Management - Usage and Administration

Issue/Introduction

Threshold monitoring alerts using percent of baseline are trigging outside threshold

How do you configure a percent of baseline alert when wanting just the values below the bottom side of the baseline

Environment

All supported releases of Performance Management

Resolution

To configure a percent of baseline rule to alert when the value is less than x% of the baseline you would need to specify a negative value for the Value entry and below for the Operator entry.

Example:

I want to alert when the Bandwidth Utilization is below 25% of the baseline and clear when Bandwidth Utilization is above 25% of the baseline.  To do this you would configure the rule with the following:

Assuming the baseline in this example is 50% utilization, an event would be triggered when the Bandwidth Utilization is below 37.5%