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Re[3]: [datacenter] Datacenters at sea

On Tue, 21 Jan 2003, Richard Welty wrote:

> On Tue, 21 Jan 2003 09:03:25 -0500 (EST) Martin Hannigan <[email protected]> wrote:
> >
> > On Tue, 21 Jan 2003, Richard Welty wrote:
> >
> > > On Tue, 21 Jan 2003 05:39:14 -0500 (EST) Martin Hannigan
> > <[email protected]> wrote:
> > > > Well, I'm a licensed captain and merchant marine and all I can think
> > of
> > > > is bracing and lots of it. :)
> now that i think about it, racks should be anchored top and bottom. think
> earthquake zone standards.
> > > would static electricity be a problem? if so, would this tend to drive
> > one
> > > towards fiber as an interconnect solution in preference to copper?
> > Fiber may address some problems caused by electrical discharge
> > related to signal, but not equipment.
> on reflection, how does copper behave in a salt air environment? is
> corrosion a problem? again, another factor that might point to fiber
> interconnects. i know the USN generally interconnects with fiber in their
> newer ships, but what i know is mostly from the overview articles on the
> Jane's and Aviation Leak web sites, not a lot of technical detail there.

This is bigger than earthquake me thinks. First, it's not shaking on
the ship, it's pitch and roll.  In severe storms, I've seen ships
roll 30^ port and starboard. That's huge. You'd need top, bottom, and
side bracking if you ask me. I couldn't find a google link for
a standard, but there's probably something on the Navy site for
it, or the MSC. Many ships don't actually have aggregated computer
rooms. All the electronics are with the emitters and the consoles
are on the bridge or in combat control like a NOC.

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