What is the cheapest way to store 600TB of data?

Off Topic
3

Right now I'd probably say dropbox.

see:

https://forum.rclone.org/t/dropbox-business-advanced-limits-questions

or see

https://forum.rclone.org/t/unlimited-cloud-storage-via-dropbox-and-rclone-group-plan-open-spot-30-m/25231/5

last year the answer was googledrive but they're threatening to close the loopholes required