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Question about Calculated Item

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  • mr.sedam
    Junior Member
    • Feb 2015
    • 1

    #1

    Question about Calculated Item

    Hi everyone

    I totaly new with Zabbix and I try to create a calculated Item for a template but I alway receive an error.
    First I created two Item, pulled from SNMP agent v2.
    First item name is HP Mem Used, key: HPMemUsed
    Second Item is HP Mem Free, key: HPMemFree.

    I get data from both item.

    Now I'm trying to create a calculated Item called HP Mem Total with this fucntion:
    last("HPMemUsed")+last("HPMemFree").

    When I try to enable the item i get this error:
    Cannot evaluate function "last()": item "MyHPSwitch:HPMemUsed" does not exist.
    I tried this too: last("HPMemUsed",0)+last("HPMemFree",0)

    Can someone help to understand what I'm doing wrong.

    I'm using Zabbix 2.4.3

    Thank you.
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