The maximum number of nodes supported by the pve host cluster
- Thread starter skyshe
- Start date
There's no programmed in limit, but in practice it very much depends on the HW and a lot on the network that hosts the latency-sensitive cluster communication. Network communication grows overproportional to added nodes.
That said, we know of setups that run a cluster with 51 nodes, but IIRC with very good HW, network engineers and some fine-tuning. If you don't spend too much attention to tuning and "golden HW", but use a separate physical network infrastructure for the cluster network, then going up to 20-25 nodes should be possible without much headache.
Modern server with the current high-thread count CPUs can provide a big amount of compute and/or storage resources; so a handful of such servers can handle a huge amount of load.
What's your use case and how many nodes of which HW do you plan to have?
That said, we know of setups that run a cluster with 51 nodes, but IIRC with very good HW, network engineers and some fine-tuning. If you don't spend too much attention to tuning and "golden HW", but use a separate physical network infrastructure for the cluster network, then going up to 20-25 nodes should be possible without much headache.
Modern server with the current high-thread count CPUs can provide a big amount of compute and/or storage resources; so a handful of such servers can handle a huge amount of load.
What's your use case and how many nodes of which HW do you plan to have?
The use case is the underlying virtualization of physical servers with a scale of 5k-1w, which is expected to be deployed in large or ultra-large data centers.
