Currently only unify needs namespace. stripe does not. The new branch will
have unify as is (with the namespace etc) but a new translator which will be
a functional replacement to unify will be introduced. This new translator
(hash) internally builds a distributed hash table over the storage servers
improving the FS performance significantly. The DHT is similar in concept to
many of the popular DHT algos, and hashes the filename and stores the file
on the hashed node. So functionally, it is similar to unify (directory
structure is replicated, file exists on only one node) but the internals are
quite different, without a namespace too.