I just start using cacti and I would like to know if it is possible to create a new graph from the sum of values in an other graph (not in the same one) .
For instance, I have a graph with:
Memory Free: 0,28G
Memory Buffers: 0,73G
Cache Memory: 1,17G
I'd like to get a new graph called "Available Memory Usage" and to graph 2,18G (0,73G + 0,28G + 1,17G)
Is it possible?
Thank you in advance for your help