300 GB bandwidth. LOL
Well for starters, his server may have "unmetered" data transfer
usage from his upstream provider, fdcservers, but he's still limited by
the physical transmission limits of the network card in the server machine
which is either 5 MB or 100 MB depending on the server machine he
purchased. This of course means it's physically impossible for you to
really get anywhere close to the 300 GB data transfer offered in
actual usage due to hardware limitations. That goes especially doubly
so when considering that there is also sharing of the same network
interface with other high bandwidth users hosted on the same server
machine along with your account. Remember that the output of the
network interface is divided among the various sites hosted on
that particular server machine.
Also the machines listed at
http://www.fdcservers.net/dedicated.html
all have either 512 MB or 1024 MB of memory. Any more than just a
handful of high bandwidth sites running under those memory limits
and the server will slow to an intolerable snail paced halt.
The given specifications of the server could handle roughly 200 to 250
low bandwidth sites or about maybe 10 to 15 high bandwidth sites
assuming those sites aren't excessively bandwidth hogs assuming
of course that he purchased one of the higher end servers listed
on the fdcservers page quoted above. Otherwise, if he got one
of the single port 5 Mbps machine, you can cut that estimate by
about a factor of 10!
I sure hope he's planning on buying a hell of a lot more server machines
because he's going to need them!