Each G Suite user can store up to 30 GB of content for free (compared to 15 GB with G Suite free edition or individual consumer accounts). This storage is shared between Gmail, Google Drive, and Google Photos. If you’re approaching the limit or if you’ve run out of storage, you can purchase additional storage or reduce your storage usage.
Unlimited storage is available with the G Suite Enterprise or Business or Education edition (if you have 5 or more users) or 1 TB of storage (if you have 4 or fewer users).
Well, you could not be more to the point, at least when it comes to Amazon. As of 30 November 2017, also Amazon Germany (and my guess is all European Amazons) have discontinued their unlimited plan, offering instead this:
Yes, the amazon party is over also in France, I received the termination notification. 99€ / Yr / 1TB is not bad, but nothing to compare with “unlimited”. I’d be happy with a few TB around that yearly price.
It’s look like you are facing issues with the management of your hosting. It could be very tricky to set up the ideal server and then manage it as well. You can always go with the AWS EC2 server with the management of a third party host as their are many companies who are providing the managed service.