--- /dev/null
+.. ditaa::
+ /------------------\ /-----------------\
+ | admin-node | | node1 |
+ | +-------->+ cCCC |
+ | ceph-deploy | | mon.node1 |
+ | | | osd.0 |
+ \---------+--------/ \-----------------/
+ |
+ | /----------------\
+ | | node2 |
+ +----------------->+ cCCC |
+ | | osd.1 |
+ | \----------------/
+ |
+ | /----------------\
+ | | node3 |
+ +----------------->| cCCC |
+ | osd.2 |
+ \----------------/
+