Gcorwin, that is correct. The VIP211Z's are non-DVR equipment. You are able to add the hard drive to the VIP211Z for a one time fee of $40 to have the ability to record while out on the road. Here is a link that will give you more information on the requirements needed for the drive: https://www.mydish.com/external-hard-drive.
Please let us know if you have any other questions!