UIM baseline_engine scalar algorithm calculation

Document ID : KB000101622
Last Modified Date : 15/06/2018
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Question:
How does baseline_engine probe use the scalar threshold configuration for dynamic alarms ?
Environment:
UIM 8.5x
Answer:
Scalar algorithm for dynamic alarm is calculated and compared on the value which is past the calculated baseline for that particular hour of the day.

If the Baseline is X and configured threshold (Scalar Type) is Y.
The new qos value Q is compared with (X + Y).

Example:

scalar algoritm example

If the baseline value for 1PM - 2PM on Tuesday is calculated to be 2.0 , and the dynamic alarm algorithm is set to Scalar and threshold is provided to be >= 7.0 ,then the condition will be breached if the QOS value reported is equal to  9 = (2 + 7) and above.

 
Additional Information:
Configuring Alarm Thresholds

https://docops.ca.com/ca-unified-infrastructure-management-probes/ga/en/how-to-articles/configuring-alarm-thresholds


Baseline_engine Standard Deviation Algorithm
https://comm.support.ca.com/kb/baselineengine-standard-deviation-algorithm/kb000013925
 

Baseline_engine percent algorithm calculation

https://comm.support.ca.com/kb/baseline-engine-percent-algorithm-calculation/kb000095012