we'll be wiring the file share/storage unit into the router/ethernet switch that we currently use, which is connected directly to the computer that I run IL2 on by a (theoretically) 100 MB/s ethernet cable. So, how slowly will IL2 run with that setup, and what do you recommend for a low cost option for a file share/storage unit?
You can expect IL-2 to run on a 100 MBit line quite like when running it on an old Pentium 4 rig with IDE harddisk drives attached, which means that heavily modded games like UP 2.01 will take something like 10 minutes to come up, whereas other game versions with content being stored in sfs files (UP3, DBW) won't show such a big impact, they might take something like 2 or 3 minutes to start.
Mission startup time will be significantly longer than on a local machine. Expect a mission which takes 10 seconds to load on your local PC to take two minutes on that ethernet install.
110G is right when pointing out that a 1GB ethernet line serves better. That way you nearly won't see any noticeable performance difference anymore.
Low cost / budget recommendation?
Well...
The cheapest way would be to purchase a router which is able to attach local storage via USB.
I've got a Netgear WNR3500L running with OpenWrt (TomatoUSB) linux OS on a test system here. The router took me 60 bucks, I can attach any USB drive to it and get something like half of the 1GB/s performance from that configuration.
One step ahead you'd want to buy some dedicated NAS system with a 1 GB line (I don't think there are 100MBit systems out there anymore at all).
Such a system with 2x2TB raid disks is available from less than 300 bucks onwards.
hold on... running a server is not running the game?
Running a server is not running the
3D part of the game.
every time a mission loads, the relevant data is written from the HDD (now cloud) to the RAM... therefor needs to be transferred.
Yep. What's the deal? The HDD is not the only bottleneck in this situation. With a 1GB line you won't see any (noticeable) difference.
why 100mb/s? the wiring that old? not Category 6 cabling available?
Why Cat6 for 1GB/s? Cat5 will do.
Best regards - Mike