2016-02-10, 09:55 PM
It only uses this if you have 'default to recording location with the most space available' ticked in the Settings->Recording screen (and have multiple recording directories specified). If it can't get determine the space from that directory, then it'll default to assuming there is no space available (in effect forcing it to use one of the other recording directories).
That said, if your NAS drive is broken, you should probably remove it as a recording path.
That said, if your NAS drive is broken, you should probably remove it as a recording path.