Graph with multi item combined by different hosts

[chrislee]

Dear All,

I am newer with Zabbix and very impressive. And I have several window server in our production environment and all is one of our web server Farm.

So I need to a graph that can show the aggregate value with certain item ( ex. network interface in, network interface out ) of these web servers.

Can I do this in Zabbix or What is the best way to do this ?

regards,
Chris

[untergeek]

Yes you can. There are two ways to make this work. If all of the windows hosts are in the same group and have the IDENTICAL item key names (which is surprisingly hard for windows servers, I've found), then you can use the Zabbix Aggregate type (grpsum[yada,yada,yada]). There is more information in the manual for this.

The other way would be a Calculated item. This would work much the same way, but would allow for different item key names and different host groups. In the formula window you'd enter something rather like this: host1.itemkey.last(0)+host2.itemkey.last(0)+host3. itemkey.last(0), etc. adding in all of the host/key value pairs. Again, the manual has more information for you on this.

[richlv]

...and the third option would be a stacked graph that references individual items

[untergeek]

This is true. I omitted that. It never entered my mind because I dislike stacked graphs. I dislike stacked graphs as they force averaging, making the graphs less precise.

I do like stacked graphs when I'm monitoring network traffic across a cluster as I can clearly see when one server is handling more of the load by color band thickness, but otherwise I find that stacked is of less value because it's less precise.