[nmglug] noise reduction

[Aaron]

We just got a new server.  Wow is it loud.
Louder than a typical vacuum cleaner!

Does anybody have any advice for reducing noise from this box?
We moved it to a walk-in closet type room.  It is still
very loud.  Are there some noise-reducing curtains or similar
lower-cost measures we can take to damp the noise?

Upcoming question:   If we put stuff around the rack for
noise reduction, how much ventilation fan will we need to
keep it cool?
How do we reduce the noise from those fans?  ;-(

                    aaron