Graphs

[jsimoes]

Dear members,

I have recently entered the world of zabbix and I am quite satisfied with the overall performance. However, there is something that would be very useful to me and I don't even know if it possible or not.

At this moment I am monitoring some machines with Zabbix agent and everything works fine. The thing is that I wanted to know if it possible to build graphs using the sum of two (2) items.

Let me explain, for example, there is an item that gives me the memory used by the user, and another one that gives me the memory used by the system. My idea was to build a graph that would contain the sum of both, so that I could have an item that would be the sum of both (Memory of user + Memory of System), which would be equivalent to the all memory used (I know this is not true, but it's just an example)

Is it possible? Can anyone enlighten me about this?

Thanks in advance,

Jose Simoes

[crayons]

I would love to have this feature too. Although I don't think it exists in zabbix 1.1.4. You could achieve this in a couple ways though. If it was on the same system you could echo those two values to a file and have a new item that adds those two together from the file if they are on the same physical system you are monitoring.

The other way would be to write a script that does a select on the zabbix database itself, which would be the best way and add them together. Which table is zabbix item history stored in? I am not very good with databases unfortunately, so I am still trying to figure this one out myself.