Backup collected data prometheus+telegraf


How do you backup the data you collect. If its possible at all.
I have set my retention period to 6month, and if i lose that data i have collected in that time, i dont have the history i need. So would like to back it up, so i can restore if needed. I already have backup of my folders with grafana+prometheus+telegraf, but need data restored as well. Also beside having backup as a safety, it could also be used to load up on another server, so i have 2 servers running same setup, so i have a secondary server i can try new stuff on before doing it in production.

Thanks in advance for the help

/ Carsten