I know Zabbix handles numeric data in a way that it shows the absolute value for a given instant. But I have another type of data that accumulates over time (ie. number of bytes transmitted - not transmission rate).
When I am looking at a latest values -> graphs, I would like to see the sum of those values over a period of time. Example: when looking at a week chart, a pixel in the horizontal axis would be a period of 30 minutes. Instead of seeing the average number for the span of 30 minutes in each horizontal pixel I would like to see the sum of the values.
There is any way to do that?
Edit: The variable I am tracking is the number data items sent to a server. The values are sent to Zabbix (or to my current NMS) in a per request basis, so there is no defined period. In a minute Zabbix could receive a single report with the value 300, or 10 reports, each one with the value 20. What I want to show in the graph is the sum, 300 or 200 for each case respectively.