Ethernet system design guide

I'm not very good with networks so somekind of guide would be very nice.
I'm wondering how to build a system which has network disk(s) as a backup for showfiles and mediaservers?
In our theater we have Art-net and Hippo-net in different networks and we have to add Hog-net too... and I'm interested building a network backup for Hippos and Hog...

I'm not very good with networks so somekind of guide would be very nice.
I'm wondering how to build a system which has network disk(s) as a backup for showfiles and mediaservers?
In our theater we have Art-net and Hippo-net in different networks and we have to add Hog-net too... and I'm interested building a network backup for Hippos and Hog...