Questions

1. What Ceph daemon allows RBDs to be replicated to another Ceph cluster?
2. True or false: RBDs by default are just a concatenated string of objects.
3. What tool can be used to export or import a PG from or to an OSD?
4. True or false: An unfound object status means that data has been lost forever.
5. What is the main disadvantage you are left with after rebuilding CephFS metadata?