Proxmox Cluster?

[jorge_jvm]

Hello everyone, I have a question, because if I have two proxmox and I have them in cluster, if one is off, the virtual machines do not start? there is no replication configuration, there is nothing more than the cluster or a machine in one of them, why can not it start? if a server of the two is burned, no machine would start

 

[Belokan]

Because you need to set your VMs as "HA" resources. But to do so you need at least 3 nodes in your cluster for obvious quorum reason.
So you first need to add a 3rd node in order to be able to take advantage of high availability.

Note that this 3rd node does not need to be powerful or even running Proxmox itself. Before having 3 "real" nodes in my cluster@home, I first used a simple Raspberry PI just to add a corosync vote, then a Proxmox VM running on a NAS (virtualbox) but of course not on on of the 2 actives nodes ...

 

[jorge_jvm]

I do not want to do HA replication alone, and what I do not understand is because when the two proxmox are in cluster, if one is turned off they do not start the vm, why? it is assumed that if a server breaks the other entatoma its place in replication but it is not, if the second this apagano does not start the virtual machine

 

[Belokan]

If you want your VMs to automatically restart on another node when the one hosting them fails this is HA.
Now if you're manually shutdown a node hosting VMs, those VMs won't be restarted on another node as a "clean shutdown" is not a failure.