NSA325-v2 and TimeMachine configuration

In order to prevent that your HD in your ZyXel gets completely filled with TimeMachine files, do the following to limit the space to 500GB.

 

Create a share called TimeMachine
Create a limited user called timemachine
Limit the quota for this user to 500 GB
Goto Shares, Edit share as below
Now activate TimeMachine in your iMac using above credentials.
Done!