Adding Dell Unity (XT), VNX(e) Before you add a Dell storage system to the backup infrastructure, check Planning and Preparation. To add a Dell Unity (XT), VNX(e) storage system to the backup infrastructure, use the New Dell Unity Storage wizard.Launch the wizard.Select storage type.Specify storage name or address and storage role.Specify credentials.Specify VMware access options.Specify Veeam Agent access options.Apply settings.Finish working with wizard.