[ceph-users] Question about speeding hdd based cluster

Hello ceph-users, I’ve been wondering…. I have a proxmox hdd-based cephfs pool with no DB/WAL drives. I also have ssd drives in this setup used for other pools. What would increase the speed of the hdd-based cephfs more, and in what usage scenarios: 1. Adding ssd/nvme DB/WAL drives for each node 2. Moving the metadata pool for my cephfs to ssd 3. Increasing the performance of the network. I currently have 10gbe links. It doesn’t look like the network is currently saturated, so I’m thinking (3) is not a solution. However, if I choose any of the other options, would I need to also upgrade the network so that the network does not become a bottleneck? Thank you! George