Cloud storage is the opposite of distributed. With cloud storage, you must have one single fixed central location (often a third party) that contains the real

Cloud storage is the opposite of distributed. With cloud storage, you must have one single fixed central location (often a third party) that contains the real data, many satellite locations with a partial replica of the data, and hit-or-miss mechanisms to notice changes in replicas and propagate them to the central location. If the central location is down there is no more synchronization. If the central location is not yours, they can shut you down anytime. A distributed filesystem does away with the need for a fixed central storage by storing data across all locations with a configurable level of replication. A strong, consistent cascading of changes (eg a crdt semantic) brings all replicas in sync whenever connectivity allows. No third parties need to be involved, no single device is a point of failure.