Poking around on the Internet, you can find some steps, like how to get unsupported volumes to appear to the TimeMachine engine, with the help of a friend (thanks Fabian & Craig) we’ve managed to put together these steps, which work for both Home Server 2011, and SBS 2011 Essentials:
Once you have completed these steps, your MAC will start using the Windows Home Server 2011 or Windows Small Business Server 2011 Essentials as the backup TARGET. This means it will back up over the network using the built in timeline functionality, on the schedule you define inside timeline.
What is also cool, is while the MAC won’t show a percentage complete like the PC does when performing the client backup, it will tell you the status right in the console, which of course falls through to the alerts.
Mac Backup Successful:
Mac Backup Unsuccessful:
So there you have it, How to backup a MAC to a Windows Home Server 2011, Windows Storage Server 2008 R2 Essentials or Windows Small Business Server 2011 Essentials Server.
Alternatively you can download an add in from http://www.orbitaltech.com/Orbital%20Backup%20Utility.htm that will make this process easier.
Due to the fact that Lion now relies on AFP (Apple filing protocol) and no longer supports saving to a NAS (see http://www.macwindows.com/Lion-broke-NAS-and-AFP-servers-.html ) the ability to send Lion based Time machine backups to a Windows share does not work at this time.
If this information changes, we will post updated information.