zabbix trigger for difference between 2 values from 2 fields

I am trying to figure out how to have Zabbix pull values from 2 fields, compare them and trigger if the difference between them exceeds a certain value

2 Answers
2

You can collect the two fields as standard items (snmp values, agent values etc), then create a calculated item with their difference and appy to it your triggers.

If one is always larger than the other and using a threshold of 13:

host:item1.last()-host:item2.last()>13


If their relative sizes are unknown, cannot think of anything nicer but this:

(host:item1.last()-host:item2.last()>13) or (host:item2.last()-host:item1.last()>13)


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