While the new HP MediaSmart EX485/EX487 will come with a bundle of other features, one that's very important for me is the ability to back up my Mac OS X machines. I hope that HP will enable us EX470/475 users in the future to upgrade to this new functionality.
Until then, you can set up Time Machine to back up to any SMB shared drive with a manual process. It has been working well for me for a few weeks now, and it served me just fine when I needed to look up some backed up iTunes files.
NOTE: Back up your system with this procedure at your own risk! It's advisable to back up your most important files before trying this procedure in case you experience data loss.
In order to complete this procedure, you must have admin rights on both the Mac system as well as the MediaSmart Server.
Step 1: Enable Time Machine to Back Up To SMB Shares
On the Mac side, you need to prepare Time Machine to backup also to SMB mounted locations. In order to do this, you'll have to manually edit a preferences file in Terminal. Go ahead and open up the Terminal in your /Applications folder, and type in the following script:
defaults write com.apple.systempreferences TMShowUnsupportedNetworkVolumes 1
Don't close the window as we'll be using it in our next step. Now, in general, you'll be able to use Time Machine with SMB shares. It's possible that the desired location on your MediaSmart server has already popped up in Time Machine, but this is unlikely. The next step is to create a Time Machine "drive" for use on your MediaSmart Server.