Virtual Box on FreeBSD Server

[Sergio de Almeida Lenzi]

I use Virtualbox and FreeBSD 9, or 10 as the base
OS and the windows 2003server, 2008 server, running
in the virtualbox, 

My cpu is an AMD8120 8cores with 16GB of memory,
the filesystem is in ZFS, 

I put 2Gb for each windows, and the system runs
confortable with 20 users in each windows machine.. (total of 40 users)

The boot (cold boot) for the 2003 server (32 bits) is about 10 seconds 
with an drive of 20GB and another of 400GB (in the virtualbox...) 
the NIC is configure with bridge, the FreeBSD gives address via
dhcp server...
both windows run with VboxHeadless   and are both 
enable terminal servers....

Runs like a charm...