Proxmox+Ceph no de Hi IOWait

I am seeing high IOwait on all proxmox+ceph node in my cluster. Any idea what this might be causing it or what to tweak in ceph configuration? The IO wait is high across all Proxmox+Ceph nodes. There are no VMs running on any of the OSD nodes.

Ceph cluster:
Nodes = 6
OSDs = 36 (6 per node)
OSD OP Threads = 4
OSD Disk Threads = 2
Filestore OP Threads = 2
ceph-io.png

Any help from fellow ceph users is greatly appreciated!

Attached Images

• ceph-io.png (22.1 KB)