Hi,
If you are upgrading a vCenter Server Appliance that is using an external database, the external database will be migrated to the embedded PostgreSQL database of the new upgraded appliance. During the upgrade, you must select a storage size for the new appliance that is suitable for the database size.
Upgrading the vCenter Server Appliance and Platform Services Controller Appliance
Prerequisites for Upgrading the vCenter Server Appliance or Platform Services Controller Appliance
Determine the Oracle Database Size and the Storage Size for the New Appliance
Thank you MartinGustafsson!!
