Here are links to some of my tinkering and hacking:
Once the cream of the hardware that ran unix, these sun3 machines have quite definitely
passed into the realm of antique hardware and retrocomputing.
The old sun3 and sun4 models that I used to use and treasure are now
quite absurd with 4M of ram and (on the fastest models) 25 Mhz processors.
With the advent of fast cheap PC's that run linux, there is little reason
to use even the most modern Sun Ultra's (which are 300 Mhz sparc processors
with something on the order of 256M of ram).
The usual excuse is the need to run some unique third party software,
or in-house software that bad management has neglected to migrate to
a modern system.
Lastly, let me offer you an old copy of the Sun hardware FAQ that was once maintained by James Birdsall. It is a real treasure for anyone that wants to try to fire up old sun hardware.
Tom's Computer Info / tom@mmto.org