Hello, I have a 5 node PVE cluster with Ceph (2 OSD every node on Intel DC SSD on dedicated 10G network). I am actually using it for LXC containers and my idea is to always keep one node empty to move containers in case of node failure. I will need to scale up in the near future probably to a total of 21 servers. What are the best practices and bottlenecks to consider while scaling? Will my 10GB network become the bottleneck adding nodes ? ( I have dual 10GB adapter so I could use bonding to get 20GB) I could create separate smaller clusters (3 cluster of 7 nodes) but I will need more hot standby servers. Any suggestion is appreciated. Thank you. P.