DocsKnowledge BaseAPI Explorer
Documentation›ZVF›ZStack ZSphere›Technical Whitepaper
ZVF

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:
    1. Based on the existing network configuration, select the most accurate method to probe the status of the host where the virtual machine resides.
    2. If the status of the host is abnormal, the HA-enabled virtual machine will attempt to restart automatically.
PreviousVM ConsoleNextIP/MAC/ARP Spoofing Protection