High Availability
VM HA
Virtual machines support the high availability (HA) mode. This policy can trigger automatic VM restart when a VM is stopped due to routine maintenance (planned) or unexpected failures (unplanned), thereby improving VM availability.
NeverStop VM HA Mechanism:
- The system uses polling and trigger-based mechanisms to monitor the virtual machine status. If the virtual machine is confirmed to be stopped, a VM configured with HA will be automatically restarted.
- The system uses polling and trigger-based mechanisms to monitor the virtual machine status. If the VM status cannot be definitively determined, the following detection process is initiated:
- Based on the existing network configuration, select the most accurate method to probe the status of the host where the virtual machine resides.
- If the status of the host is abnormal, the HA-enabled virtual machine will attempt to restart automatically.