Currently I have an external hdd connected to my Mac Mini and (as a temporary measure) we are backing this up to Dropbox using a Symbolic Link. This works fine but the main problem is when the connection seems to drop between Mac OSX and the HDD. The HDD isn't in sleep mode as everyone else in our office is occasionally using it 8 hours a day, but it seems to drop throughout the day.
What I need to do is setup some sort of connection refresh to keep this connection alive. Any ideas anyone?