Incremental backup using snapshot difference is not supported for Data ONTAP file server version 'version.modification.submodification'. Upgrade the file server 'file-server-name' to Data ONTAP version '7.3' or later in order to perform incremental backup operations using snapshot difference.
The file server specified is not at the Data ONTAP version that supports snapshot difference API.
Processing stops.
Upgrade the file server to Data ONTAP version 7.3 or later and retry the operation.