That's not correct. Cloud services are largely provided by clustered, highly redundant servers in geographically diverse data centers. Stored data is usually replicated through a variety of schemes to ensure continuity, regardless what happens at an individual site. My organization provides both a private, highly secure "dark cloud" in our data center and similar services hosted in Amazon's AWS cloud services infrastructure. There is no single definition but a "cloud" is not "really the internet."
In the Op's unfortunate case, there was no unforeseen data loss problem. This was a "terms of service" problem.
Server or server cluster basically the same thing. I would guess 99% of the guys on this forum do not even know what a server is let alone what deduplication is.
The data loss was more than a terms of service thing. It goes to not actually backing up your data. No matter your security plan is it needs offline storage at a minimum. Different locations should just be the way. I send DVDs and technical packages to my brother you know just in case.









