Just to answer your question:
It’s quite a lot of data but not insanely important, it would be really inconvenient if I lost it but far from the end of the world. I’m looking at local backup because in the event of an entire hardware drive failure having to download all the data again over the internet would take an absolute age. Not that a cloud backup isn’t also good (I am using backblaze) in case the local backup drive also failed at the same time.
I do however have other things that are really important which I already backup with multiple levels of cloud and local storage (such as family photos, secure documents etc) - I will check out tarsnap as well though as it sounds interesting Thank you
Lot’s of recommendations here thank you everyone. Will take me a little bit of time to read through all the options here but there looks to be same great solutions.
Thank you very much.