Yes, but this isn't a database, it's an object store. Block, file, and object storage platforms have yet to implement similar functionality. Block and file platforms are in particular very closed.
Here are a few scalable open source block/object storage systems:
Lustre
Ceph
tahoe-lafs
XtreemFS
These are all opensource.
For example, if I wanted a fast global-coherent CDN, then all I need are webservers and GPFS, with some glue code to allow auth'd uploads/deletes. geographically scalable, with tiered storage levels.
If you want to run on dodgy hardware, then use XtreemFS. but you'll pay a performance price.
I'd be interested in a comparison in developer language(as in graphs code examples etc.), with a github link or similar.