I agree. I was also thinking of Ceph when I wrote my reply to Cantrill. Esp Ceph on XFS given maturity of both plus enormous effort that's gone into XFS. Sector/Sphere with UDT is also kick-ass. It took both of these a long time to get to where they were fighting all kinds of unforseen issues. They also tried to build on proven components that themselves were battletested for years.

So, this company is trading away stuff like that for custom components and Etcd? And for a component focusing on integrity and availability? Huh?