Mantis is a Sun Fire 280R donated by BT. It's a 4U UltraSparc box with 2GB of RAM and four 73GB drives (2xFC + 2xSCA) in RAID5.
It runs Debian GNU/Linux 5.0 (lenny).
There is a single 200GB partition. Web directories are mounted at /tardis/www on [vortis].
Mantis is the primary webserver and serves all the vhosts and userdirs.