Maybe a gigabyte if you used a separate vm for cpu, auth and the fs. You can combine cpu/auth and even the file server into one if you wanted.

On Jan 13, 2011 2:34 PM, "Duke Normandin" <dukeofperl@ml1.net> wrote:
> On Thu, 13 Jan 2011, Skip Tavakkolian wrote:
>
>> if the intent is to get a full understanding of what an operational
>> Plan 9 environment is like, using VMware or Qemu to create VM's for
>> various roles (auth/cpu, fs, term) connected by a virtual network is
>> an excellent option. I've successfully used this setup for
>> experimenting/testing and for demos.
>
> Sounds like _a lot_ of fooling around! I've set up numerous *nix LANs
> before, but don't have one at the moment. How much memory would a
> machine need to set up all those VMs?
> --
> Duke
>