Setting up my first ceph cluster using proxmox. A few question

[codingspiderfox]

When I try to create an OSD, Proxmox UI asks for

* Data disk
* DB disk
* WAL disk

What disk will be the limiting factor in terms of storage size for my OSD - the data disk?
How large do I need to make the other two?

Is there a risk of them running over capacity before the capacity of the OSD is reached? If so, how to avoid this (in terms of usage pattern)?

 

[Alwin]

Good questions. A good starting point for this is our documentation. And of course Ceph's docs as well.
https://pve.proxmox.com/pve-docs/chapter-pveceph.html#pve_ceph_osds
https://docs.ceph.com/docs/nautilus/architecture/