How to identify VM snapshots that must be removed before transition
Snapshots virtual machines (VMs) with Virtual RDM attached do not survive transition from Data ONTAP operating in 7-Mode to clustered Data ONTAP. These snapshots must be removed before transition. Snapshots of VMs with only VMFS vDisks and Physical RDM (PTRDM) do survive transition and do not have to be removed.
You can use the Inventory Assessment Workbook generated by the Inventory Collect Tool to identify all VMs with Virtual RDMs attached. Snapshots listed in the Inventory Assessment Workbook under the VM Snapshots column and the NPTRDM column with a value greater than 0 are VMs that have a Virtual RDM attached with VM snapshots.