'''WARNING - Hack ahead!''' For Time Machine users only.
There is an unsupported way to enable using Mac OS X Time Machine to backup to your HDA. The hack is [[http://vowe.net/archives/008940.html | documented in this pageTime Machine hack]] and it's is a one liner command to be typed in a terminal in Mac OS X:
<code>defaults write com.apple.systempreferences TMShowUnsupportedNetworkVolumes 1</code>