Eh?
Was that a news article I just read, or a copy/pasted press release?
Hard work this journalism lark.
In the open-source world, there are few enablers to success more potent than being distributed within the mainline Linux kernel. Every open-source company I know aspires to such broad, built-in distribution. Which is one reason why I'm so bullish on the future of Ceph, an open-source, massively scalable distributed storage …
Matt may have opinions but they always have to be taken with a pinch of salt -when I cover areas I work in they're a mix of underinformed and unrealistic.
FWIW, OpenStack mostly uses Swift, which is less of a distributed filesystem and more of a python service for distributing files across a pool of machines.
As for the "only ceph is in the kernel" story. RedHat's GFS? What about Lustre?