HELP to understand jails

[rubenm]

I have this jails that i dont know of
My actual jails is media for Plex
i think that i have isntaled some config file that makes this changes, can anyone help?
as i need space is HDD

 

[Whattteva]

That's a template that's downloaded when you create your first jail.
All of your jails typically are snapshots of that template. It is actually a good thing as snapshots are very lightweight and it will save you space the more jails you have based on that template.