If you're OK with using a windows OS then I suggest you use Windows Home Server 2011.
To explain - my system is a deicated WHS 2011 sytem with 42TB of storage and I run iTunes on the server itself. This means my destop PC/laptop do not always need to be on - don't listen to people who say you can't run iTunes directly on the server beacuse you can and it causes no issues whatsoever.
I built my own WHS 2011 server using an old HP PC that I lying around but there are plenty of two stop solutions (1- buy server and 2 - install WHS 2011) you can buy.
The advantages of using a WHS 2011 server are:
1. It's a server so you can turn everything else off and just have the server on.
2. It's a server so you can share all your media and files to multiple parties inside your LAN and externally when you're away from home.
3. It's a server so you can host all sorts of services on it such as a website/blog if that interests you.
4. By running iTunes directly on the server that instance of iTunes forms part of your "iTunes Homesharing" network.
5. You can also run Plex or XMBC concurrently with iTunes if you want - I also use Plex as I have a Roku 3 that I use for Amazon Prime and a couple of other things.
6. Tonnes of other reasons which I won't bore you with.
Best thing I ever did was move to the server option as trying to work out how to store all the DVD/Blu-ray rips I wanted to make and also a growing amount of music and photo's was doing my head in.
To explain - my system is a deicated WHS 2011 sytem with 42TB of storage and I run iTunes on the server itself. This means my destop PC/laptop do not always need to be on - don't listen to people who say you can't run iTunes directly on the server beacuse you can and it causes no issues whatsoever.
I built my own WHS 2011 server using an old HP PC that I lying around but there are plenty of two stop solutions (1- buy server and 2 - install WHS 2011) you can buy.
The advantages of using a WHS 2011 server are:
1. It's a server so you can turn everything else off and just have the server on.
2. It's a server so you can share all your media and files to multiple parties inside your LAN and externally when you're away from home.
3. It's a server so you can host all sorts of services on it such as a website/blog if that interests you.
4. By running iTunes directly on the server that instance of iTunes forms part of your "iTunes Homesharing" network.
5. You can also run Plex or XMBC concurrently with iTunes if you want - I also use Plex as I have a Roku 3 that I use for Amazon Prime and a couple of other things.
6. Tonnes of other reasons which I won't bore you with.
Best thing I ever did was move to the server option as trying to work out how to store all the DVD/Blu-ray rips I wanted to make and also a growing amount of music and photo's was doing my head in.