In the figure Ceph has three subsystems: MONs, MDSs, and OSDs. My suggestion is to switch the labels to the right and draw "programmability" arrows from "Malacology" to each of them.
Remove the arrow with the "cls" document -- it's not clear why the reader needs to know that at this point (and it's not explained in the intro).
In the figure Ceph has three subsystems: MONs, MDSs, and OSDs. My suggestion is to switch the labels to the right and draw "programmability" arrows from "Malacology" to each of them. Remove the arrow with the "cls" document -- it's not clear why the reader needs to know that at this point (and it's not explained in the intro).