We purchased a pair of 8040 (cDOT) at the beginning of the year to upgrade our current Oracle storage. The plan was to use the RMAN plugin for Oracle to manage the backups. It seems that the plugin has disappeared from the NetApp website with SMO being the only available option.
The plugin kept it simple for our DBAs who want to continue to manage their backups from their familiar tools. Otherwise they will resort to writing full RMAN backups to disk.