A node in multiple clusters

[dpayet]

Hello all !

first post for a question
I think about the Proxmox solution with mutliple VM (10-12) for HA. I don't think it is possible to have one server with the 10-12 VM (because of the amount of required resources) and I would like to know if it is possible to have 3 physical servers with :
- Server 1 with (for example) 5 VM
- Server 2 with the other 7 VM
- Server 3 with the 12 VM which start up IF Server1 or Server2 goes down. So server3 would be a node in 2 different clusters.

Don't know if it is clear, beacuse it is not in my head ..

Thanks for your advice (and sorry for my english)

 

[Daniel S.]

To have a working cluster and HA you need at least 3 nodes and you will be able to do what you need.
All nodes within the same cluster (one cluster).

 

[dpayet]

Thanks for your answer.

So if I would like to split the 12 VM in two servers, I have to set up two separate clusters, so 2x3 nodes ?

If there any other solution cheaper ?

 

[Daniel S.]

You need 3 servers(nodes). You can spread all 12 VMs on these 3 nodes as you wish.
You do not need 2 clusters.

 

[dpayet]

Hmm ok, I think I understand. For example :
- VM 1 to 4 in server1
- VM 5 to 8 in server2
- VM 9 to 12 in server3

If server1 goes down, the four VM will be migrating in server2 and server3 (with some paramater to have priorites or something I guess) ?

Thanks again for your help

 

[Daniel S.]

https://pve.proxmox.com/wiki/High_Availability