Hello everyone!
I do not know if I'm about to say something stupid, I had the idea to put Arch on my iConnect and, thanks to this http://archlinuxarm.org/forum/viewtopic.php?f=27&t=1472, I think I almost made it there.
I would then install Plex Media Server (http://aur.archlinux.org/packages.php?ID=51350) to access through Plex installed in different client (a Windows PC, another PC with Arch, an iPhone and a Mac Mini), the media library contained in the HD connected to the iConnect.
Thanks in advance!