David Johnston wrote:
> I would be very interested to hear the results of any tests you do. I'm
> a consultant, and none of my current clients does CAD work, but you
> never know.
>
> I would be concerned that CAD would require too much network bandwidth
> between server and client to make LTSP feasible.
>
> A couple of ideas on relieving network bottlenecks:
> -use high-end switches
> -use high-end network cards in your server
> -put two gigabit cards in your server and bond them together.
> -Get the CAD program to run as a local app from the server
> -put a hard drive in your CAD workstations and use rsync to maintain a
> local copy of your CAD program, and run it locally.
>
> Please let me know if this helps any.
Excellent comments. I'm not sure what CAD will do to our network
bandwidth. I hadn't really considered it. I'd have thought it wouldn't
be any worse than most programs. When drawing in 2D, you manipulate
simple line objects on the screen. Screen updates may not be a big problem.
If I tried to do 3D, I can see big problems. Three-D programs are very
demanding to the host computer. Especially when doing shaded previews
while manipulating the data. I can't even consider running 3D CAD on a
terminal server.
I like the idea of running the CAD program as a local app from the
server. Most of our workstations are going to be remarkably fast for
doing terminal work. The cheapest terminals I can find have at least
64MB of RAM. I could easily make that 256MB and run a RAM disk on it and
set it up for local apps (for the terminals primarily used for CAD work).
We do have a good network switch which can take a gigabit network card.
I was considering using that for the server to feed the 100baseT network
terminals. It ought to be very fast.
DJ
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