What kind of server? I'm sure you can serve files with limitations like the 10 client limit that MS has always put into client OSes. Most free server software doesn't care about the OS, like Apache, but a lot of commercial server software will only install on Server editions of Windows.
I currently have a WHS 2011 and was updating the hardware. I have two licenses for Windows 8 Pro and thought...why not just make the new server Windows 8 Pro? I only use the server for File Sharing, backups and running two VMs.
STORAGE SPACES
Hyper-V
