Dell DR4000 - Manual (Page 19)

19 Setting Up the Dell™ DR Series System on Symantec NetBackup to Use Backup Acceleration | May 2014
16. In New Storage Unit, enter a Storage unit name, Storage unit type as Disk, Disk type as OpenStorage
(DELL), Storage unit configured for as Backup. Select the disk pool that was created in steps 7-13, and
select the media server that will be used for backup.
17. Make sure that the Storage Unit is listed after creation.