I have a 3-node Ceph cluster configured as per the Proxmox wiki. Each node has 3 SSDs, as shown in the attached screenshot of the OSDs (2x 1TB and 1x 240 / 250GB).
I'm seeing quite a difference in usage between the drives; for example, osd.3 is 44.50% consumed, whereas osd.7 is just 32.07%...