It's been confusing for a long time that EC pools are implemented by
ReplicatedPG. What PG/ReplicatedPG really implement is the concept
of a PG where consistency is managed by the primary via a log.
Signed-off-by: Samuel Just <sjust@redhat.com>
Most of the doc is user-oriented, let's isolate internals more.
Split into multiple files. Clean up RST.
Use Sphinx's graphviz plugin for graphs.
Signed-off-by: Tommi Virtanen <tommi.virtanen@dreamhost.com>
