Testing Proxmox HA configuration
To test whether the HA is really working, we will disconnect network connectivity for the node pmx-01 and observe the Status window for HA changes. The Status window displays the status of resources in real time. The following screenshot shows the HA status after interrupting network connectivity:
In the preceding screenshot, we can see that our example node pm4-1 is no longer connected to the cluster, and HA does not get any acknowledgement from the node. After 60 seconds, Proxmox HA promotes the next available node in the HA group as the master and migrates any HA-enabled VM. In our example cluster, after disconnecting node pmx-01, the HA migrating the VM is as shown in the following screenshot:
After the VM resources are fenced, in the next stage, the VM is fully stopped. Since the node itself is down, the VM cannot be live-migrated because the memory state of the running VM cannot be retrieved from the down node. After the VM is stopped, it is moved to...
