- Notes, cautions, and warnings
- Preface
- Introducing metro node
- Metro node use cases
- Features in metro node
- Integrity and resiliency
- Software and upgrade
This section describes the failure scenarios for metro node Metro HA without cross-connect.
In the event of a full metro node cluster outage at one site:
VMware restarts the virtual machines at the site where the outage occurred, redirecting I/O to the surviving cluster.
VMware can restart because the second metro node cluster has continued I/O without interruption.
If an inter-cluster link outage occurs, the preferred cluster continues, while the non-preferred cluster suspends. If a virtual machine is located at the preferred cluster, there is no interruption of service. If a virtual machine is located at the non-preferred cluster, the storage associated with the virtual machine is suspended. In such a scenario, most guest operating systems will fail. The virtual machine will be restarted at the preferred cluster after a short disruption.
If an inter-cluster link outage occurs:
VMware can restart because the second metro node cluster has continued I/O without interruption.