Is it feasible for CA Performance Management to update the same alarm based on different thresholds?
CPU util > 70% -> Threshold created to generate Major alert -> Alert 1
CPU util > 90% -> Threshold created to generate Critical alert -> Alert 2
Is it possible for CAPM to update Alert 1 with critical severity rather than generating alert 2 and closing alert 1?
DX NetOps CAPM all Releases
No, it is not possible to raise the severity of a currently existing alarm. Once an alarm is generated, it is created and stored in the DB as is.
However, you can clear an alarm and then replace it with one of higher severity when a threshold is met.
While there is no auto-clear of another alarm, you can create a rule that will auto-clear the major alarm and raise a new critical alarm to replace it. For example:
rule 1: util > 70% and util <= 90%, create major, clear otherwise
rule 2: util > 90%, create critical, clear otherwise
The above will send a clear for the current major, and a set for a new critical in case you just want to make sure that you don't have to clear lesser severity alarms.