Consider the following before executing backups for VMs hosted on servers configured in a cluster:
| • | To protect virtual machines residing on cluster shared volumes (CSVs), you must select the cluster in the Navigation pane before executing backups. You cannot protect these VMs by selecting the owner node. For details, see Clustered VMs in the Navigation pane. |
| • | To protect virtual machines that are hosted on a cluster node but that do not reside on CSVs, you must create a backup schedule for the node that hosts the VMs. You cannot protect them in the same schedule as the clustered VMs. For details, see Non-clustered VMs on a cluster node. |
| • | A Microsoft limitation prevents the Unitrends appliance from running concurrent backups of clustered VMs hosted on Windows Server 2008 R2. You can work around this limitation by creating aliases for the cluster and creating a separate schedule for each CSV. For instructions, see Creating an alias for a Hyper-V cluster. |
| • | For information on working with clusters, see Working with Hyper-V clusters in the Navigation pane. |