Backblaze is cheap, but if you're uploading millions og files, beware -- there is no way to just nuke/empty a bucket with a click of a button. If you're not keeping filename references in an external database, you are left to sequentially scan and remove files in batches of 1000 in a single thread.
Support could not help, and it took me months to empty a bucket that way.
Support could not help, and it took me months to empty a bucket that way.