Automatically remove 6 months older data on graph

[farazby]

I have multiple servers and switches hosted on Cacti server but now every graph removes 6 months older data automatically, is there any config that's needs to be changed to keep at least a year data ?

Needs urgent response, cheers

The RRD files have NAN values from older than 6 months data.

[camerabob]

In the settings area there is an option to choose how long data is retained.