Macos – How to connect OS X to a QNAP Time Machine volume


I have a QNAP TS-212 NAS running the latest 4.0.2 firmware. This firmware has a Backup Station option where it creates a Time Machine backup volume for OS X to use. In my case OS X 10.8.5.

When I enable Time Machine from OS X, I can actually see the backup volume called TMBackup in the list of volumes to choose.

However, selecting it, it tries to connect, and then tells me that the connection failed. I can connect to other AFP shares on the NAS without problem, but it won't connect to the TMBackup one.

What can I do to be able to make backups again?

Best Answer

I had the same problem with my new macbook pro running OSX Mavericks 10.9.1 and a QNAP TS-219P with firmware 4.0.2.

In the end I had to bypass the Time Machine GUI and set the backup volume through the command line using this command:

sudo tmutil setdestination -ap afp://TimeMachine@NAS.local/TMBackup

where NAS.local is the network name of my QNAP. Once that way set the backups worked fine and the GUI responds properly also.

*** the afp:// part of the above command can just be used in the "Connect to Server" menu item from the Finder. I found that the use of the username "TimeMachine" made all the difference, given that I also use the same network server for my normal network shares.