Removal of cluster resources during restore
When a virtual machine is configured as highly available, the Windows Server Failover Cluster (WSFC) software creates a group for that virtual machine. The group contains various resources, such as VM resource, VM configuration resource, and disk resource. These resources are under the control of the group.
When a highly available (HA) virtual machine is restored to its original location, the existing virtual machine at that location must be removed. As part of the restore, the WSFC software automatically removes the virtual machine's group resources as well, as described in the following table.
Table: Removal of cluster resources during restore: CSV-based vs. non-CSV-based
Is the HA virtual machine based on a CSV volume? | These group resources are removed along with the existing virtual machine: |
|---|---|
Yes | VM resource, VM configuration resource, and disk resource are removed. |
No | VM resource and VM configuration resource are removed. The existing disk resource is retained as part of the cluster group. |